LTC1052ML [TI]
OP-AMP, 5uV OFFSET-MAX, 1.2MHz BAND WIDTH, MBCY8, HERMETIC SEALED, METAL CAN-8;型号: | LTC1052ML |
厂家: | TEXAS INSTRUMENTS |
描述: | OP-AMP, 5uV OFFSET-MAX, 1.2MHz BAND WIDTH, MBCY8, HERMETIC SEALED, METAL CAN-8 放大器 斩波器 |
文件: | 总4页 (文件大小:42K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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SLOS089A − D3238, MAY 1988−REVISED JULY 1991
• Input Offset Voltage . . . 5 µV Max at 25°C
D OR P PACKAGE
(T0P VIEW)
• Temperature Coefficient of Input Offset
Voltage . . . 0.001 µV/°C Typ
C
C
V
1
2
3
4
8
7
6
5
XA
IN−
XB
• Long-Term Drift of Input Offset Voltage
DD+
100 nV/mo Typ
IN+
OUT
V
CLAMP
DD−
• Maximum Input Bias Current . . . 30 pA at
25°C
• Minimum Differential Voltage Amplification
AVAILABLE OPTIONS
PACKAGE
Over Full Temperature Range . . . 120 dB
• Minimum Common-Mode Rejection Ratio
V
MAX
IO
T
A
SMALL OUTLINE
PLASTIC DIP
(P)
at 25°C
Over Full Temperature Range . . . 120 dB
(D)
−40°C
to
85°C
• Minimum Supply Voltage Rejection Ratio
5 µV
LTC1052CD
LTC1052CP
LTC1052MP
Over Full Temperature Range . . . 120 dB
−55°C
to
125°C
• Single-Supply Operation from 4.75 V to
16 V (Input Voltage Range Extends to
Ground)
5 µV
LTC1052MD
The D package is available taped and reeled. Add the suffix R,
(e.g., LTC1052CDR).
• External Capacitors Can Be Returned to
V
with No Noise Degradation
CC−
description
The LTC1052 is a low-noise chopper-stabilized operational amplifier manufactured using CMOS silicon-gate
technology. The device is well-suited for applications such as thermocouple amplifiers, strain-gauge amplifiers,
low-level signal processing, and medical instrumentation.
Chopper stabilization constantly corrects input offset voltage errors, including both errors in the initial input offset
voltage and errors in input offset voltage due to time, temperature, and common-mode input voltage. The
chopper circuitry is internal and completely transparent to the user. Only two external capacitors are required
to alternately sample and hold the offset correction voltage and the amplified input signal.
Low-frequency (1/f) noise is also improved by the chopping technique. Instead of noise increasing continuously
at a rate of 3 dB/octave, the internal chopping causes noise to decrease at low frequencies. Picoampere input
currents further enhance the performance of this device.
The C-suffix devices are characterized for operation from −40°C to 85°C. The M-suffix devices are
characterized for operation over the full military temperature range of −55°C to 125°C.
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Copyright 1991, Texas Instruments Incorporated
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ꢘꢢ ꢠ ꢢ ꢟ ꢟ ꢝ ꢛꢗ ꢥꢫ ꢗꢘ ꢠ ꢥꢡ ꢦꢢ ꢞ ꢢ ꢟ ꢞꢗ ꢘꢬ ꢚꢙ ꢝꢥ ꢥ ꢣꢝ ꢛ ꢝꢜ ꢢꢞꢢ ꢛ ꢟꢧ
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POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
1
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absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
Supply voltage, V
(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V
(see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −8 V
DD+
DD−
Input voltage range, V (any input, see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 V
I
Duration of short-circuit current at (or below) 25°C (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . unlimited
Operating free-air temperature, T : C-suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40°C to 85°C
A
M-suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55°C to 125°C
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
NOTES: 1. All voltage values, except differential voltages, are with respect to the midpoint between V
DD+
and V .
DD−
2. Connecting any terminal to voltages greater than V
or less than V may cause destructive latch-up. No sources operating from
DD+
DD−
external supplies should be applied prior to device power up.
3. The output may be shorted to either supply.
electrical characteristics at specified free-air temperature, V
= 5 V (unless otherwise noted)
DD
LTC1052C
LTC1052M
†
PARAMETER
TEST CONDITIONS
T
A
UNIT
‡
MIN TYP
MAX
MIN TYP‡ MAX
V
IO
Input offset voltage
25°C
0.5
5
0.5
5
µV
Temperature coefficient
of input offset voltage
α
VIO
Full range
0.01
0.05
0.01
0.05 µV/°C
Long-term drift of input
offset voltage
25°C
100
5
100
5
nV/mo
30
V
IC
= 0,
R = 50 Ω
S
25°C
Full range
25°C
30
350
30
I
IO
Input offset current
Input bias current
pA
2000
1
1
30
I
IB
pA
Full range
175
1000
−5
to
2.7
−5
to
2.7
Common-mode input
voltage range
V
R
= 50 Ω
Full range
V
V
ICR
OM
S
Maximum peak output
voltage swing
R
R
= 100 kΩ, See Note 4
25°C
Full range
25°C
4.95
150
4.95
150
L
L
V
= 10 kΩ,
See Note 4
4.7
4.7
Large-signal differential
voltage amplification
120
120
120
120
A
V
O
=
4 V,
R
= 10 kΩ
dB
Hz
VD
L
Full range
Internal chopping
frequency
f
ch
25°C
330
100
330
100
25°C
Full range
25°C
R
= 100 kΩ
= −4 V to 4 V
µA
On-state clamp current
Off-state clamp current
L
25
25
10
140
150
1.7
100
1
10
140
150
1.7
100
2
pA
nA
V
V
O
Full range
25°C
Common-mode
= 0,
V
IC
= V
ICR
min,
120
120
120
120
120
120
120
120
O
CMRR
dB
dB
rejection ratio
R
= 50 Ω
Full range
25°C
S
Supply-voltage rejection
V
V
CC = 2.375 V to 8 V,
k
SVR
ratio (∆V
CC
/∆V
IO
)
= 0,
R
= 50 Ω
S
Full range
25°C
O
O
2
3
2
3
I
DD
Supply current
V
= 0,
No load
mA
Full range
†
‡
Full range is −40°C to 85°C for the LTC1052C and −55°C to 125°C for the LTC1052M.
All typical values are at T = 25°C.
A
NOTE 4: Output clamp is not connected.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2
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operating characteristics, V
= 5 V, T = 25°C
A
DD
PARAMETER
TEST CONDITIONS
= 10 kΩ, = 50 pF
MIN
TYP
4
MAX
UNIT
SR
Slew rate
R
R
R
C
V/µs
L
L
= 100 kΩ to 10 Hz
= 100 kΩ to 1 Hz
1.5
0.5
0.6
1.2
S
S
V
I
Peak-to-peak equivalent input noise voltage
µV
NPP
Input noise current (see Note 5)
Gain bandwidth product
f = 10 Hz
fA/√Hz
MHz
n
GBP
1/2
, where q = 1.6 × 10
−19
.
NOTE 5: Equivalent input noise current is calculated as follows: I = (2q × I
)
IB
n
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
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