TP5591U-TR [3PEAK]
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps;型号: | TP5591U-TR |
厂家: | 3PEAK |
描述: | Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps |
文件: | 总15页 (文件大小:1123K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
TP5591 / TP5592 / TP5594
3PEAK
Features
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Description
The TP5591-2-4 amplifiers are single, dual and quad
chopper stabilized zero-drift operational amplifiers
optimized for single or dual supply operation from 1.8V
to 5.5V or ±0.9V to ±2.75V. The TP559x op-amps
feature very low input offset voltage and low noise with
1/f noise corner down to 0.1Hz. The TP559x amplifiers
are designed to have low offset voltage and offset
temperature drift, wide gain bandwidth and rail-to-rail
input and output swing while minimizing power
consumption.
LOW OFFSET VOLTAGE: 20 μV (Max)
ZERO DRIFT: 0.01 µV/°C
Ultra-low Noise:
-
-
-
Input Noise Voltage: 17 nV/√Hz at 1 kHz
0.1Hz to 10Hz Noise Voltage: 370 nVPP
1/f Noise Corner Down to 0.1Hz
3.3 MHz Bandwidth, 2.5 V/μs Slew Rate
Low Supply Current: 470 μA per Amplifier
Single-Supply Operation Down to +1.8V
Low Input Bias Current: 60 pA
The TP559x op-amps can provide low offset voltage
(20μV Max) and near-zero drift over time and
temperature with excellent CMRR and PSRR.
The TP5591 (single version) is available in SC70-5,
SOT23-5 and SO-8 packages. The TP5592 (dual version)
is offered in MSOP-8, SO-8 package. The TP5594 (quad
version) is available in TSSOP-14 and SO-14 package.
All versions are specified for operation from -40°C to
125°C .
High Gain, 127 dB High CMRR & PSRR
Overload Recovery Time: 35 μs
Rail-to-Rail Input and Output Swing
–40°C to 125°C Operation Range
3PEAK and the 3PEAK logo are registered trademarks of
3PEAK INCORPORATED. All other trademarks are the property of
their respective owners.
Applications
Medical Instrumentation
Temperature Measurements
Precision current sensing
Precision Low Drift, Low Frequency ADC Drivers
Process Control Systems
Precision Voltage Reference Buffers
Pin Configuration(Top View)
TP5591
8-Pin SOIC
(-S Suffix)
TP5591
5-Pin SOT23/SC70
(-T and -C Suffixes)
TP5592
8-Pin SOIC/MSOP
(-S and -V Suffixes)
TP5594
14-Pin SOIC/TSSOP
(-S and -T Suffixes)
1
2
3
4
5
6
7
14
Out A
﹣In A
﹢In A
﹢Vs
Out D
1
2
3
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
Out
NC
﹣In
﹢In
﹣Vs
NC
Out A
﹢Vs
﹢Vs
13 ﹣In D
﹣In A
Out B
﹣In B
﹢In B
﹣Vs
﹢Vs
Out
NC
A
A
B
D
C
12
11
﹢In D
﹣Vs
+In
4
-In
﹢In A
﹣Vs
B
10 ﹢In C
TP5591U
﹢In B
﹣In B
Out B
5-Pin SC70/SOT23
(-C and -T Suffixes)
9
8
﹣In C
Out C
1
2
3
5
+In
﹣Vs
-In
﹢Vs
4
Out
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Order Information
Marking
Information
Model Name
Order Number
Package
SOT23-5
Transport Media, Quantity
TP5591-TR
TP5591-CR
TP5591-SR
TP5591U-CR
TP5591U-TR
TP5592-SR
TP5592-VR
TP5594-SR
TP5594-TR
E91T
91C
Tape and Reel, 3,000
Tape and Reel, 3,000
Tape and Reel, 4,000
Tape and Reel, 3,000
TP5591
SC70-5
SOIC-8
TP5591
91V
SC70-5
TP5591U
TP5592
TP5594
SOT23-5
SOIC-8
E91U
Tape and Reel, 3,000
Tape and Reel, 4,000
Tape and Reel, 3,000
Tape and Reel, 2,500
Tape and Reel, 3,000
TP5592
TP5592
TP5594
TP5594
MSOP-8
SOIC-14
TSSOP-14
Note 1
Absolute Maximum Ratings
Supply Voltage: .....................................................6V
Input Voltage: ....................... ……V– – 0.1 to V+ + 0.1
Input Current: +IN, –IN Note 2........................... ±20mA
Output Current: OUT...................................... ±60mA
Output Short-Circuit Duration Note 3…....... Indefinite
Current at Supply Pins……………............... ±50mA
Operating Temperature Range.......–40°C to 125°C
Maximum Junction Temperature................... 150°C
Storage Temperature Range.......... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ......... 260°C
Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to
any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime.
Note 2: The inputs are protected by ESD protection diodes to each power supply. If the input extends more than 500mV beyond the
power supply, the input current should be limited to less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power
supply voltage and how many amplifiers are shorted. Thermal resistance varies with the amount of PC board metal connected to
the package. The specified values are for short traces connected to the leads.
ESD, Electrostatic Discharge Protection
Symbol
Parameter
Condition
Minimum Level
Unit
HBM
CDM
Human Body Model ESD
ANSI/ESDA/JEDEC JS-001
ANSI/ESDA/JEDEC JS-002
7
2
kV
kV
Charged Device Model ESD
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Electrical Characteristics
At TA = 27° C, VS = 5V, RL = 10kΩ, VCM = VDD/2, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
MIN
TYP
MAX
5.5
UNITS
V
VS
IQ
Supply voltage range
1.8
TP5591
1200
550
±5
1400
950
μA
Quiescent current per amplifier
Input offset voltage
TP5592/4
μA
VCM = 0.05V to 4.95V
VS = 1.8V, VCM = 0.9V
±20
μV
VOS
±5
±20
μV
dVOS/dT
PSRR
vs. temperature
0.01
130
0.1
μV/°C
dB
vs power supply
Vs = 3V to 5V
95
Input voltage noise, f=0.01Hz to 1Hz
Input voltage noise, f=0.1Hz to 10Hz
Input voltage noise density, f=1kHz
μVpp
μVpp
nV/√Hz
Vn
0.37
17
en
Input capacitor differential
Input capacitor common-mode
Input current
3
pF
pF
CIN
2
±60
±800
±100
±200
pA
IB
Over temperature
pA
IOS
Input offset current
±400
pA
VCM
CMRR
VO
Common-mode voltage range
Common-mode rejection ratio
Output voltage swing from rail
Short-circuit current
(V-)-0.1
110
(V+)+0.1
V
VCM = 0.5V to 4.5V
127
5
dB
RL=10kΩ
25
mV
mA
MHz
V/μs
μs
ISC
±60
3.3
2.5
35
GBWP
SR
Unity gain bandwidth
Slew rate
CL=100pF
G=+1, CL=100pF
G=-10
tOR
Overload recovery time
Settling time to 0.01%
tS
CL=100pF
(V-)+100mV<VO<(V+)-100mV,
RL = 100kΩ
SOT23-5
20
μs
AVOL
Open-loop voltage gain
100
130
dB
200
210
158
250
83
MSOP-8
SO-8
Thermal resistance junction to
ambient
θJA
°C/W
SC70-5
SO-14
TSSOP-14
100
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REV A.01
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Typical Performance Characteristics
QuiesentCurrentvs Temperature
Voltage Noise Spectral Density vs Frequency
1000
100
10
1
900
800
700
600
500
400
300
200
100
-50
-25
0
25
50
75
100
125
150
0.01
0.1
1
10
100
1k
10k
Frequency (Hz)
Temperature(°C)
CMRR vs FREQUENCY
OPEN-LOOPGAIN vs FREQUENCY
120
100
80
60
40
20
0
100
140
120
100
80
90
80
70
60
50
40
30
20
10
0
60
40
20
-20
0
10
100
1k
10k
100k
1M
10M
1
10
100
1k
10k
100k
1M
Frequency(Hz)
Frequency(Hz)
Positive Over-Voltage Recovery
Small-Scale Step Response
G=+1
RL=10KΩ
Input
Output
Time (50μs/div)
Time (5μs/div)
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Negative Over-Voltage Recovery
Large-Scale Step Response
G=+1
RL=10KΩ
Input
Output
Time (50μs/div)
Time (10μs/div)
Offset Voltage Distribution
18
16
14
12
10
8
6
4
2
0
Offset Voltage (μV)
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Typical Applications
Single Supply, High Gain Amplifier, AV = 10,000 V/V
-
TP5591
+
Thermistor Measurement
-
TP5591
+
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Pin Functions
-IN: Inverting Input of the Amplifier.
+IN: Non-Inverting Input of Amplifier.
possible should be used between power supply pins or
between supply pins and ground.
V- or -Vs: Negative Power Supply. It is normally tied to
OUT: Amplifier Output. The voltage range extends to
ground. It can also be tied to a voltage other than
ground as long as the voltage between V+ and V– is from
1.8V to 5.5V. If it is not connected to ground, bypass it
with a capacitor of 0.1μF as close to the part as
possible.
within mV of each supply rail.
V+ or +Vs: Positive Power Supply. Typically the voltage
is from 1.8V to 5.5V. Split supplies are possible as long
as the voltage between V+ and V– is between 1.8V and
5.5V. A bypass capacitor of 0.1μF as close to the part as
Operation
The TP559x series op amps are zero drift, rail-to-rail operation amplifiers that can be run from a single-supply voltage.
They use an auto-calibration technique with a time-continuous 3.3 MHz op amp in the signal path while consuming
only 470 μA of supply current per channel. This amplifier is zero-corrected with an 120 kHz clock. Upon power-up, the
amplifier requires approximately 100 μs to achieve specified VOS accuracy. This design has no aliasing or flicker noise.
Applications Information
Rail-To-Rail Input And Output
The TP559x op-amps feature rail-to-rail input and output with a supply voltage from 1.8V to 5.5 V. This allows the
amplifier inputs to have a wide common mode range (50mV beyond supply rails) while maintaining high CMRR(127dB)
and maximizes the signal to noise ratio of the amplifier by having the VOH and VOL levels be at the V+ and V- rails,
respectively.
Input Protection
The TP559x op-amps have internal ESD protection diodes that are connect between the inputs and supply rail. When
either input exceeds one of the supply rails by more than 300mV, the ESD diodes become forward biased and large
amounts of current begin to flow through them. Without current limiting, this excessive fault current causes permanent
damage to the device. Thus an external series resistor must be used to ensure the input currents never exceed 10mA.
V+
Current-limiting resistor
required if input voltage
exceeds supply rails by
500Ω
+2.5V
>0.5V.
IN+
Ioverload
10mA max
TP5591
VIN
Vout
500Ω
5kΩ
-2.5V
IN-
V-
INPUT ESD DIODE CURRENT LIMITING- UNITY GAIN
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Low Input Referred Noise
Flicker noise, as known as 1/f noise, is inherent in semiconductor devices and increases as frequency decreases. So
at lower frequencies, flicker noise dominates, causing higher degrees of error for sub-Hertz frequencies or dc precision
application.
The TP559x op-amps are chopper stabilized amplifiers, the flicker noise is reduced greatly because of this technique.
This reduction in 1/f noise allows the TP559x to have much lower noise at dc and low frequency compared to standard
low noise amplifier.
Residual voltage ripple
The chopping technique can be used in amplifier design due to the internal notch filter. Although the chopping related
voltage ripple is suppressed, higher noise spectrum exists at the chopping frequency and its harmonics due to residual
ripple.
So if the frequency of input signal is nearby the chopping frequency, the signal maybe interfered by the residue ripple.
To further suppress the noise at the chopping frequency, it is recommended that a post filter be placed at the output of
the amplifier.
Broad Band And External Resistor Noise Considerations
The total broadband noise output from any amplifier is primarily a function of three types of noise: input voltage noise
from the amplifier, input current noise from the amplifier, and thermal (Johnson) noise from the external resistors used
around the amplifier. These noise sources are not correlated with each other and their combined noise can be
summed in a root sum squared manner. The full equation is given as:
en total [en2 4kTRs (in Rs )2 ]1/2
Where:
en= the input voltage noise density of the amplifier.
in= the input current noise of the amplifier.
RS= source resistance connected to the noninverting terminal.
k= Boltzmann’s constant (1.38x10-23J/K). T= ambient temperature in Kelvin (K).
The total equivalent rms noise over a specific bandwidth is expressed as:
en,rms en total BW
The input voltage noise density (en) of the TP559x is 17 nV/√Hz, and the input current noise can be neglected. When
the source resistance is 190 kΩ, the voltage noise contribution from the source resistor and the amplifier are equal.
With source resistance greater than 190 kΩ, the overall noise of the system is dominated by the Johnson noise of the
resistor itself.
High Source Impedance Application
The TP559x op-amps use switches at the chopper amplifier input, the input signal is chopped at 125kHz to reduce
input offset voltage down to 20µV . The dynamic behavior of these switches induces a charge injection current to the
input terminals of the amplifier. The charge injection current has a DC path to ground through the resistances seen at
the input terminals of the amplifier. Higher input impedance cause an apparent shift in the input bias current of the
amplifier.
Because the chopper amplifier has charge injection currents at each terminal, the input offset current will be larger
than standard amplifiers. The IOS of TP559x are 150pA under the typical condition. So the input impedance should be
balanced across each input. The input impedance of the amplifier should be matched between the IN+ and IN-
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
terminals to minimize total input offset current. Input offset currents show up as an additional output offset voltage, as
shown in the following equation:
vos,total vos Rf Ios
For a gain configure using 1MΩ feedback resistor, a 150pA total input offset current will have an additional output
offset voltage of 0.15mV. By keeping the input impedance low and balanced across the amplifier inputs, the input
offset current effect will be suppress efficiently.
Ri
Rf
Vref
+2.5V
TP5591
-2.5V
Vout
Rs
VIN
Rb
Vref
Circuit Implication for reducing Input offset current effect
PCB Surface Leakage
In applications where low input bias current is critical, Printed Circuit Board (PCB) surface leakage effects need to be
considered. Surface leakage is caused by humidity, dust or other contamination on the board. It is recommended to
use multi-layer PCB layout and route the OPA’s -IN and +IN signal under the PCB surface.
The effective way to reduce surface leakage is to use a guard ring around sensitive pins (or traces). The guard ring is
biased at the same voltage as the sensitive pin. An example of this type of layout is shown in the Figure for Inverting
Gain application.
1. For Non-Inverting Gain and Unity-Gain Buffer:
a) Connect the non-inverting pin (VIN+) to the input with a wire that does not touch the PCB surface.
b) Connect the guard ring to the inverting input pin (VIN–). This biases the guard ring to the Common Mode input voltage.
2. For Inverting Gain and Trans-impedance Gain Amplifiers (convert current to voltage, such as photo detectors):
a) Connect the guard ring to the non-inverting input pin (VIN+). This biases the guard ring to the same reference voltage as the
op-amp (e.g., VDD/2 or ground).
b) Connect the inverting pin (VIN–) to the input with a wire that does not touch the PCB surface.
G u a r d R i n g
V I N +
V I N -
+ V S
The Layout of Guard Ring
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
SOT23-5 / SOT23-6
D
A2
A1
θ
L1
e
Dimensions
Dimensions
In Inches
In Millimeters
Symbol
Min
Max
Min
Max
A1
A2
b
0.000
1.050
0.300
2.820
1.500
2.650
0.100
1.150
0.400
3.020
1.700
2.950
0.000
0.041
0.012
0.111
0.059
0.104
0.004
0.045
0.016
0.119
0.067
0.116
D
E1
E
E
E1
e
0.950TYP
0.037TYP
e1
L1
1.800
0.300
0°
2.000
0.460
8°
0.071
0.012
0°
0.079
0.024
8°
θ
b
e1
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
SC-70-5 / -6 (SOT353 / SOT363)
D
A2
C
A1
θ
L1
e
Dimensions
Dimensions In
Inches
In Millimeters
Symbol
Min
Max
Min
Max
A1
A2
b
0.000
0.900
0.150
0.080
2.000
1.150
2.150
0.100
1.000
0.350
0.150
2.200
1.350
2.450
0.000
0.035
0.006
0.003
0.079
0.045
0.085
0.004
0.039
0.014
0.006
0.087
0.053
0.096
C
E1
D
E
E
E1
e
0.650TYP
0.026TYP
e1
L1
θ
1.200
0.260
0°
1.400
0.460
8°
0.047
0.010
0°
0.055
0.018
8°
b
e1
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REV A.01
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
SO-8 (SOIC-8)
A2
C
θ
L1
A1
e
E
D
Dimensions
Dimensions In
Inches
In Millimeters
Symbol
Min
Max
Min
Max
A1
A2
0.100
1.350
0.330
0.190
4.780
3.800
5.800
0.250
1.550
0.510
0.250
5.000
4.000
6.300
0.004
0.053
0.013
0.007
0.188
0.150
0.228
0.010
0.061
0.020
0.010
0.197
0.157
0.248
E1
b
C
D
E
E1
e
1.270 TYP
0.050 TYP
b
L1
0.400
0°
1.270
8°
0.016
0°
0.050
8°
θ
REV A.01
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
MSOP-8
Dimensions
Dimensions In
Inches
In Millimeters
Symbol
Min
Max
Min
Max
A
0.800
0.000
0.760
0.30 TYP
0.15 TYP
2.900
0.65 TYP
2.900
4.700
0.410
0°
1.200
0.200
0.970
0.031
0.000
0.030
0.012 TYP
0.006 TYP
0.114
0.026
0.114
0.185
0.016
0°
0.047
0.008
0.038
E
E1
A1
A2
b
C
D
3.100
0.122
e
b
e
E
3.100
5.100
0.650
6°
0.122
0.201
0.026
6°
D
E1
L1
θ
A1
R1
R
θ
L
L1
L2
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
TSSPO-14
Dimensions
In Millimeters
E1
E
Symbol
MIN
-
TYP
MAX
1.20
0.15
1.05
0.28
0.19
5.06
6.60
4.50
A
A1
A2
b
-
0.05
0.90
0.20
0.10
4.86
6.20
4.30
-
1.00
-
e
c
c
-
4.96
D
D
E
6.40
E1
e
4.40
0.65 BSC
0.60
L
0.45
0.75
A1
L1
L2
R
1.00 REF
0.25 BSC
-
0.09
0°
-
R1
θ
-
8°
R
θ
L
L1
L2
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TP5591 / TP5592 / TP5594
Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps
Package Outline Dimensions
SO-14 (SOIC-14)
D
Dimensions
In Millimeters
TYP
Symbol
MIN
1.35
0.10
1.25
0.36
8.53
5.80
3.80
MAX
1.75
0.25
1.65
0.49
8.73
6.20
4.00
A
A1
A2
b
1.60
E1
E
0.15
1.45
D
8.63
6.00
e
b
E
E1
e
3.90
1.27 BSC
0.60
L
0.45
0°
0.80
8°
A2
A
L1
L2
θ
1.04 REF
0.25 BSC
A1
L
L1
θ
L2
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