LME49870MA [NSC]
IC OP-AMP, 55 MHz BAND WIDTH, PDSO8, SOIC-8, Operational Amplifier;
| 型号： | LME49870MA |
| 厂家： | 
National Semiconductor |
| 描述： | IC OP-AMP, 55 MHz BAND WIDTH, PDSO8, SOIC-8, Operational Amplifier 放大器 光电二极管 |
| 文件： | 总34页 (文件大小：904K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 14, 2008
LME49870
44V Single High Performance, High Fidelity Audio
Operational Amplifier
General Description
RL = 2kΩ
0.00003% (typ)
0.00003% (typ)
2.7nV/√Hz (typ)
±20V/μs (typ)
55MHz (typ)
140dB (typ)
RL = 600Ω
The LME49870 is part of the ultra-low distortion, low noise,
high slew rate operational amplifier series optimized and fully
specified for high performance, high fidelity applications.
Combining advanced leading-edge process technology with
state-of-the-art circuit design, the LME49870 audio opera-
tional amplifier delivers superior audio signal amplification for
outstanding audio performance. The LME49870 combines
extremely low voltage noise density (2.7nV/√Hz) with van-
ishingly low THD+N (0.00003%) to easily satisfy the most
demanding audio applications. To ensure that the most chal-
lenging loads are driven without compromise, the LME49870
has a high slew rate of ±20V/μs and an output current capa-
bility of ±26mA. Further, dynamic range is maximized by an
output stage that drives 2kΩ loads to within 1V of either power
supply voltage and to within 1.4V when driving 600Ω loads.
■ꢀInput Noise Density
■ꢀSlew Rate
■ꢀGain Bandwidth Product
■ꢀOpen Loop Gain (RL = 600Ω)
■ꢀInput Bias Current
■ꢀInput Offset Voltage
■ꢀDC Gain Linearity Error
10nA (typ)
0.1mV (typ)
0.000009%
Features
Easily drives 600Ω loads
■
■
■
■
The LME49870's outstanding CMRR (120dB), PSRR
(120dB), and VOS (0.1mV) give the amplifier excellent oper-
ational amplifier DC performance.
Optimized for superior audio signal fidelity
Output short circuit protection
PSRR and CMRR exceed 120dB (typ)
The LME49870 has a wide supply range of ±2.5V to ±22V.
Over this supply range the LME49870 maintains excellent
common-mode rejection, power supply rejection, and low in-
put bias current. The LME49870 is unity gain stable. This
Audio Operational Amplifier achieves outstanding AC perfor-
mance while driving complex loads with values as high as
100pF.
Applications
High quality audio amplification
■
■
High fidelity preamplifiers, phono preamps, and
multimedia
High performance professional audio
■
■
The LME49870 is available in 8–lead narrow body SOIC.
Demonstration boards are available for each package.
High fidelity equalization and crossover networks with
active filters
High performance line drivers and receivers
■
■
Key Specifications
■ꢀPower Supply Voltage Range
Low noise industrial applications including test,
measurement, and ultrasound
±2.5V to ±22V
■ꢀTHD+N
(AV = 1, VOUT = 3VRMS, fIN = 1kHz)
Typical Application
300194k5
Passively Equalized RIAA Phono Preamplifier
© 2008 National Semiconductor Corporation
300194
www.national.com
Connection Diagrams
Order Number LME49870MA 30019401
See NS Package Number — M08A
LME49870 Top Mark
30019402
N — National Logo
Z — Assembly Plant code
X — 1 Digit Date code
TT — Die Traceability
L49870 — LME49870
MA — Package code
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2
Pins 1, 4, 7 and 8
Pins 2, 3, 5 and 6
Junction Temperature
Thermal Resistance
ꢁθJA (SO)
200V
100V
150°C
Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
145°C/W
Power Supply Voltage
(VS = V+ - V-)
Storage Temperature
Input Voltage
46V
−65°C to 150°C
Operating Ratings
Temperature Range
(V-)ꢀ-ꢀ0.7V to (V+)ꢀ+ꢀ0.7V
Continuous
Output Short Circuit (Note 3)
Power Dissipation
ESD Rating (Note 4)
ESD Rating (Note 5)
TMIN ≤ TA ≤ TMAX
Supply Voltage Range
−40°C ≤ TA ≤ 85°C
±2.5V ≤ VS ≤ ±22V
Internally Limited
2000V
Electrical Characteristics for the LME49870 (Note 1) The following specifications apply for VS =
±18V and ±22V, RL = 2kΩ, RSOURCE = 10Ω, fIN = 1kHz, TA = 25°C, unless otherwise specified.
LME49870
Units
Symbol
Parameter
Conditions
AV = 1, VOUT = 3Vrms
Typical
Limit
(Limits)
(Note 6)
(Note 7)
RL = 2kΩ
RL = 600Ω
THD+N
Total Harmonic Distortion + Noise
Intermodulation Distortion
% (max)
%
0.00003
0.00003
0.00009
AV = 1, VOUT = 3VRMS
IMD
0.00005
Two-tone, 60Hz & 7kHz 4:1
GBWP
SR
Gain Bandwidth Product
Slew Rate
55
45
MHz (min)
±20
±15
V/μs (min)
VOUT = 1VP-P, –3dB
referenced to output magnitude
at f = 1kHz
FPBW
ts
Full Power Bandwidth
10
MHz
AV = –1, 10V step, CL = 100pF
0.1% error range
Settling time
1.2
μs
μVRMS
(max)
fBW = 20Hz to 20kHz
Equivalent Input Noise Voltage
0.34
0.65
4.7
en
f = 1kHz
f = 10Hz
2.5
6.4
ꢀnV/√Hz
(max)
Equivalent Input Noise Density
Current Noise Density
Offset Voltage
in
f = 1kHz
f = 10Hz
1.6
3.1
ꢀpA/√Hz
VS = ±18V
VS = ±22V
±0.12
±0.14
mV (max)
mV (max)
VOS
±0.7
Average Input Offset Voltage Drift vs
Temperature
ΔVOS/ΔTemp
PSRR
0.1
–40°C ≤ TA ≤ 85°C
μV/°C
VS = ±18V, ΔVS = 24V (Note 8)
VS = ±22V, ΔVS = 30V
VCM = 0V
Average Input Offset Voltage Shift vs
Power Supply Voltage
120
120
dB (min)
110
72
IB
Input Bias Current
10
0.2
11
nA (max)
nA/°C
Input Bias Current Drift vs
Temperature
ΔIOS/ΔTemp
–40°C ≤ TA ≤ 85°C
VCM = 0V
IOS
Input Offset Current
65
nA (max)
+17.1
–16.9
V (min)
V (min)
VS = ±18V
VIN-CM
Common-Mode Input Voltage Range
+21.0
–20.8
(V+) – 2.0
(V-) + 2.0
V (min)
V (min)
VS = ±22V
3
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LME49870
Units
(Limits)
Symbol
Parameter
Conditions
Typical
Limit
(Note 6)
(Note 7)
VS = ±18V
120
dB (min)
dB (min)
–12V≤Vcm≤12V
VS = ±22V
CMRR
Common-Mode Rejection
120
110
–15V≤Vcm≤15V
Differential Input Impedance
30
kΩ
ZIN
Common Mode Input Impedance
–10V<Vcm<10V
VS = ±18V
1000
MΩ
–12V≤Vout≤12V
RL = 600Ω
RL = 2kΩ
140
140
140
dB
dB
dB
RL = 10Ω
AVOL
Open Loop Voltage Gain
VS = ±22V
–15V≤Vout≤15V
RL = 600Ω
RL = 2kΩ
125
140
140
140
dB
dB
dB
RL = 10Ω
RL = 600Ω
VS = ±18V
VS = ±22V
±16.7
±20.4
V (min)
V (min)
±19.0
RL = 2kΩ
VOUTMAX
Maximum Output Voltage Swing
VS = ±18V
±17.0
±21.0
V (min)
V (min)
VS = ±22V
RL = 10kΩ
VS = ±18V
VS = ±22V
±17.1
±21.0
V (min)
V (min)
RL = 600Ω
VS = ±20V
VS = ±22V
IOUT
Output Current
±31
±37
mA (min)
mA (min)
±30
+53
–42
IOUT-CC
Instantaneous Short Circuit Current
Output Impedance
mA
fIN = 10kHz
Closed-Loop
Open-Loop
ROUT
0.01
13
Ω
CLOAD
IS
Capacitive Load Drive Overshoot
Total Quiescent Current
100pF
16
5
%
IOUT = 0mA
6.5
mA (max)
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability
and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or other conditions beyond those indicated in
the Recommended Operating Conditions is not implied. The Recommended Operating Conditions indicate conditions at which the device is functional and the
device should not be operated beyond such conditions. All voltages are measured with respect to the ground pin, unless otherwise specified.
Note 2: The Electrical Characteristics tables list guaranteed specifications under the listed Recommended Operating Conditions except as otherwise modified
or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not guaranteed.
Note 3: The maximum power dissipation must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature, TA. The maximum
allowable power dissipation is PDMAX = (TJMAX - TA) / θJA or the number given in Absolute Maximum Ratings, whichever is lower.
Note 4: Human body model, applicable std. JESD22-A114C.
Note 5: Machine model, applicable std. JESD22-A115-A.
Note 6: Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of product
characterization and are not guaranteed.
Note 7: Datasheet min/max specification limits are guaranteed by test or statistical analysis.
Note 8: PSRR is measured as follows: For VS, VOS is measured at two supply voltages, ±7V and ±22V, PSRR = |20log(ΔVOS/ΔVS)|.
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Typical Performance Characteristics
THD+N vs Output Voltage
VCC = 15V, VEE = –15V
THD+N vs Output Voltage
VCC = 12V, VEE = –12V
RL = 2kΩ
RL = 2kΩ
300194k6
300194k7
THD+N vs Output Voltage
VCC = 22V, VEE = –22V
THD+N vs Output Voltage
VCC = 2.5V, VEE = –2.5V
RL = 2kΩ
RL = 2kΩ
300194k8
300194i4
THD+N vs Output Voltage
VCC = 15V, VEE = –15V
THD+N vs Output Voltage
VCC = 12V, VEE = –12V
RL = 600Ω
RL = 600Ω
300194k9
300194l0
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THD+N vs Output Voltage
VCC = 22V, VEE = –22V
THD+N vs Output Voltage
VCC = 2.5V, VEE = –2.5V
RL = 600Ω
RL = 600Ω
300194l1
300194i6
THD+N vs Output Voltage
VCC = 15V, VEE = –15V
THD+N vs Output Voltage
VCC = 12V, VEE = –12V
RL = 10kΩ
RL = 10kΩ
300194l2
300194l3
THD+N vs Output Voltage
VCC = 22V, VEE = –22V
THD+N vs Output Voltage
VCC = 2.5V, VEE = –2.5V
RL = 10kΩ
RL = 10kΩ
300194l4
300194i5
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THD+N vs Frequency
VCC = 15V, VEE = –15V, VOUT = 3VRMS
THD+N vs Frequency
VCC = 12V, VEE = –12V, VOUT = 3VRMS
RL = 2kΩ
RL = 2kΩ
30019463
30019462
THD+N vs Frequency
VCC = 22V, VEE = –22V, VOUT = 3VRMS
THD+N vs Frequency
VCC = 15V, VEE = –15V, VOUT = 3VRMS
RL = 2kΩ
RL = 600Ω
30019464
30019459
THD+N vs Frequency
VCC = 12V, VEE = –12V, VOUT = 3VRMS
THD+N vs Frequency
VCC = 22V, VEE = –22V, VOUT = 3VRMS
RL = 600Ω
RL = 600Ω
300194k3
30019460
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THD+N vs Frequency
VCC = 15V, VEE = –15V, VOUT = 3VRMS
THD+N vs Frequency
VCC = 12V, VEE = –12V, VOUT = 3VRMS
RL = 10kΩ
RL = 10kΩ
30019467
30019466
THD+N vs Frequency
VCC = 22V, VEE = –22V, VOUT = 3VRMS
IMD vs Output Voltage
VCC = 15V, VEE = –15V
RL = 10kΩ
RL = 2kΩ
30019468
300194e6
IMD vs Output Voltage
VCC = 12V, VEE = –12V
IMD vs Output Voltage
VCC = 22V, VEE = –22V
RL = 2kΩ
RL = 2kΩ
300194e5
300194e7
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IMD vs Output Voltage
VCC = 2.5V, VEE = –2.5V
IMD vs Output Voltage
VCC = 15V, VEE = –15V
RL = 2kΩ
RL = 600Ω
300194e2
300194e3
300194f1
300194e4
300194e0
300194e1
IMD vs Output Voltage
VCC = 12V, VEE = –12V
IMD vs Output Voltage
VCC = 22V, VEE = –22V
RL = 600Ω
RL = 600Ω
IMD vs Output Voltage
VCC = 2.5V, VEE = –2.5V
IMD vs Output Voltage
VCC = 15V, VEE = –15V
RL = 600Ω
RL = 10kΩ
9
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IMD vs Output Voltage
VCC = 12V, VEE = –12V
IMD vs Output Voltage
VCC = 22V, VEE = –22V
RL = 10kΩ
RL = 10kΩ
300194f0
300194f2
IMD vs Output Voltage
VCC = 2.5V, VEE = –2.5V
Voltage Noise Density vs Frequency
RL = 10kΩ
300194h6
300194l6
Current Noise Density vs Frequency
PSRR+ vs Frequency
VCC = 15V, VEE = –15V
RL = 2kΩ, VRIPPLE = 200mVpp
300194h7
300194p7
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PSRR- vs Frequency
VCC = 15V, VEE = –15V
PSRR+ vs Frequency
VCC = 17V, VEE = –17V
RL = 2kΩ, VRIPPLE = 200mVpp
RL = 2kΩ, VRIPPLE = 200mVpp
300194r2
300194q0
PSRR- vs Frequency
VCC = 17V, VEE = –17V
PSRR+ vs Frequency
VCC = 12V, VEE = –12V
RL = 2kΩ, VRIPPLE = 200mVpp
RL = 2kΩ, VRIPPLE = 200mVpp
300194r2
300194p4
PSRR- vs Frequency
VCC = 12V, VEE = –12V
PSRR+ vs Frequency
VCC = 22V, VEE = –22V
RL = 2kΩ, VRIPPLE = 200mVpp
RL = 2kΩ, VRIPPLE = 200mVpp
300194q9
300194q3
11
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PSRR- vs Frequency
VCC = 22V, VEE = –22V
PSRR+ vs Frequency
VCC = 2.5V, VEE = –2.5V
RL = 2kΩ, VRIPPLE = 200mVpp
RL = 2kΩ, VRIPPLE = 200mVpp
300194r8
300194p1
PSRR- vs Frequency
VCC = 2.5V, VEE = –2.5V
PSRR+ vs Frequency
VCC = 15V, VEE = –15V
RL = 2kΩ, VRIPPLE = 200mVpp
RL = 600Ω, VRIPPLE = 200mVpp
300194q6
300194p9
PSRR- vs Frequency
VCC = 15V, VEE = –15V
PSRR+ vs Frequency
VCC = 17V, VEE = –17V
RL = 600Ω, VRIPPLE = 200mVpp
RL = 600Ω, VRIPPLE = 200mVpp
300194q2
300194r4
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PSRR- vs Frequency
VCC = 17V, VEE = –17V
PSRR+ vs Frequency
VCC = 12V, VEE = –12V
RL = 600Ω, VRIPPLE = 200mVpp
RL = 600Ω, VRIPPLE = 200mVpp
300194p6
300194q5
300194p3
300194r7
300194r1
300194s0
PSRR- vs Frequency
VCC = 12V, VEE = –12V
RL = 600Ω, VRIPPLE = 200mVpp
PSRR+ vs Frequency
VCC = 22V, VEE = –22V
RL = 600Ω, VRIPPLE = 200mVpp
PSRR- vs Frequency
VCC = 22V, VEE = –22V
RL = 600Ω, VRIPPLE = 200mVpp
PSRR+ vs Frequency
VCC = 2.5V, VEE = –2.5V
RL = 600Ω, VRIPPLE = 200mVpp
13
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PSRR- vs Frequency
VCC = 2.5V, VEE = –2.5V
PSRR+ vs Frequency
VCC = 15V, VEE = –15V
RL = 600Ω, VRIPPLE = 200mVpp
RL = 10kΩ, VRIPPLE = 200mVpp
300194q8
300194r3
300194r6
300194p8
300194q1
300194p5
PSRR- vs Frequency
VCC = 15V, VEE = –15V
RL = 10kΩ, VRIPPLE = 200mVpp
PSRR+ vs Frequency
VCC = 17V, VEE = –17V
RL = 10kΩ, VRIPPLE = 200mVpp
PSRR- vs Frequency
VCC = 17V, VEE = –17V
RL = 10kΩ, VRIPPLE = 200mVpp
PSRR+ vs Frequency
VCC = 12V, VEE = –12V
RL = 10kΩ, VRIPPLE = 200mVpp
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PSRR- vs Frequency
VCC = 12V, VEE = –12V
PSRR+ vs Frequency
VCC = 22V, VEE = –22V
RL = 10kΩ, VRIPPLE = 200mVpp
RL = 10kΩ, VRIPPLE = 200mVpp
300194q4
300194r0
PSRR- vs Frequency
VCC = 22V, VEE = –22V
PSRR+ vs Frequency
VCC = 2.5V, VEE = –2.5V
RL = 10kΩ, VRIPPLE = 200mVpp
RL = 10kΩ, VRIPPLE = 200mVpp
300194r9
300194p2
PSRR- vs Frequency
VCC = 2.5V, VEE = –2.5V
CMRR vs Frequency
VCC = 15V, VEE = –15V
RL = 10kΩ, VRIPPLE = 200mVpp
RL = 2kΩ
300194g0
300194q7
15
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CMRR vs Frequency
VCC = 12V, VEE = –12V
CMRR vs Frequency
VCC = 22V, VEE = –22V
RL = 2kΩ
RL = 2kΩ
300194f7
300194f4
300194f9
300194g3
CMRR vs Frequency
CMRR vs Frequency
VCC = 15V, VEE = –15V
VCC = 2.5V, VEE = –2.5V
RL = 2kΩ
RL = 600Ω
300194o9
CMRR vs Frequency
VCC = 12V, VEE = –12V
CMRR vs Frequency
VCC = 22V, VEE = –22V
RL = 600Ω
RL = 600Ω
300194g5
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CMRR vs Frequency
VCC = 2.5V, VEE = –2.5V
CMRR vs Frequency
VCC = 15V, VEE = –15V
RL = 600Ω
RL = 10kΩ
300194o8
300194f6
CMRR vs Frequency
VCC = 12V, VEE = –12V
CMRR vs Frequency
VCC = 22V, VEE = –22V
RL = 10kΩ
RL = 10kΩ
300194g4
300194f8
CMRR vs Frequency
Output Voltage vs Load Resistance
VCC = 15V, VEE = –15V
THD+N = 1%
VCC = 2.5V, VEE = –2.5V
RL = 10kΩ
300194h1
300194f5
17
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Output Voltage vs Load Resistance
VCC = 12V, VEE = –12V
THD+N = 1%
Output Voltage vs Load Resistance
VCC = 22V, VEE = –22V
THD+N = 1%
300194h0
300194h2
Output Voltage vs Load Resistance
VCC = 2.5V, VEE = –2.5V
THD+N = 1%
Output Voltage vs Total Power Supply Voltage
RL = 2kΩ, THD+N = 1%
30019407
300194g9
Output Voltage vs Total Power Supply Voltage
Output Voltage vs Total Power Supply Voltage
RL = 600Ω, THD+N = 1%
RL = 10kΩ, THD+N = 1%
30019409
30019408
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Power Supply Current vs Total Power Supply Voltage
Power Supply Current vs Total Power Supply Voltage
RL = 2kΩ
RL = 600Ω
30019413
30019415
Power Supply Current vs Total Power Supply Voltage
Full Power Bandwidth vs Frequency
RL = 10kΩ
VS = ±18V, RL = 2kΩ
300194j0
30019414
Gain Phase vs Frequency
Small-Signal Transient Response
AV = 1, CL = 10pF
VS = ±18V, RL = 2kΩ
300194i7
300194j1
19
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Small-Signal Transient Response
AV = 1, CL = 100pF
300194i8
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inputs changes the amplifier’s noise gain. The result is that
the error signal (distortion) is amplified by a factor of 101. Al-
though the amplifier’s closed-loop gain is unaltered, the feed-
back available to correct distortion errors is reduced by 101,
which means that measurement resolution increases by 101.
To ensure minimum effects on distortion measurements,
keep the value of R1 low as shown in Figure 1.
Application Information
DISTORTION MEASUREMENTS
The vanishingly low residual distortion produced by
LME49870 is below the capabilities of all commercially avail-
able equipment. This makes distortion measurements just
slightly more difficult than simply connecting a distortion me-
ter to the amplifier’s inputs and outputs. The solution, how-
ever, is quite simple: an additional resistor. Adding this
resistor extends the resolution of the distortion measurement
equipment.
This technique is verified by duplicating the measurements
with high closed loop gain and/or making the measurements
at high frequencies. Doing so produces distortion compo-
nents that are within the measurement equipment’s capabili-
ties. This datasheet’s THD+N and IMD values were generat-
ed using the above described circuit connected to an Audio
Precision System Two Cascade.
The LME49870’s low residual distortion is an input referred
internal error. As shown in Figure 1, adding the 10Ω resistor
connected between the amplifier’s inverting and non-inverting
300194k4
FIGURE 1. THD+N and IMD Distortion Test Circuit
21
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The LME49870 is a high speed op amp with excellent phase
margin and stability. Capacitive loads up to 100pF will cause
little change in the phase characteristics of the amplifiers and
are therefore allowable.
a resistor in series with the output. This resistor will also pre-
vent excess power dissipation if the output is accidentally
shorted.
Capacitive loads greater than 100pF must be isolated from
the output. The most straightforward way to do this is to put
30019427
Complete shielding is required to prevent induced pick up from external sources. Always check with oscilloscope for power line noise.
Noise Measurement Circuit
Total Gain: 115 dB @f = 1 kHz
Input Referred Noise Voltage: en = V0/560,000 (V)
RIAA Preamp Voltage Gain, RIAA
Deviation vs Frequency
Flat Amp Voltage Gain vs
Frequency
30019428
30019429
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TYPICAL APPLICATIONS
NAB Preamp
NAB Preamp Voltage Gain
vs Frequency
30019431
30019430
AV = 34.5
F = 1 kHz
En = 0.38 μV
A Weighted
Balanced to Single Ended Converter
Adder/Subtracter
30019433
VO = V1 + V2 − V3 − V4
30019432
VO = V1–V2
Sine Wave Oscillator
30019434
23
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Second Order High Pass Filter
(Butterworth)
Second Order Low Pass Filter
(Butterworth)
30019435
30019436
Illustration is f0 = 1 kHz
Illustration is f0 = 1 kHz
State Variable Filter
30019437
Illustration is f0 = 1 kHz, Q = 10, ABP = 1
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AC/DC Converter
30019438
2 Channel Panning Circuit (Pan Pot)
Line Driver
30019439
30019440
25
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Tone Control
30019441
Illustration is:
fL = 32 Hz, fLB = 320 Hz
fH =11 kHz, fHB = 1.1 kHz
30019442
RIAA Preamp
30019403
Av = 35 dB
En = 0.33 μV
S/N = 90 dB
f = 1 kHz
A Weighted
A Weighted, VIN = 10 mV
@f = 1 kHz
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Balanced Input Mic Amp
30019443
Illustration is:
V0 = 101(V2 − V1)
27
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10 Band Graphic Equalizer
30019444
fo (Hz)
32
C1
C2
R1
R2
0.12μF
0.056μF
0.033μF
0.015μF
8200pF
3900pF
2000pF
1100pF
510pF
4.7μF
3.3μF
75kΩ
68kΩ
62kΩ
68kΩ
62kΩ
68kΩ
68kΩ
62kΩ
68kΩ
51kΩ
500Ω
510Ω
510Ω
470Ω
470Ω
470Ω
470Ω
470Ω
510Ω
510Ω
64
125
250
500
1k
1.5μF
0.82μF
0.39μF
0.22μF
0.1μF
2k
4k
0.056μF
0.022μF
0.012μF
8k
16k
330pF
Note 9: At volume of change = ±12 dB
ꢀꢀQ = 1.7
ꢀꢀReference: “AUDIO/RADIO HANDBOOK”, National Semiconductor, 1980, Page 2–61
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28
Headphone Amplifier
30019410
29
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High Performance Synchronous Demodulator
30019411
Long-Wavelength Infrared Detector Amplifier
30019412
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30
Revision History
Rev
1.0
1.1
1.2
1.3
Date
Description
09/20/07
09/27/07
12/20/07
01/14/08
Initial release.
Updated Notes 1–7 (per National standard).
Deleted all Crosstalk vs Frequency curves.
Edited some graphics.
31
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Physical Dimensions inches (millimeters) unless otherwise noted
Narrow SOIC Package
Order Number LME49870MA
NS Package Number M08A
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32
Notes
33
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Notes
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