LTC2051/LTC2052
Dual/Quad Zero-Drift
Operational Amplifiers
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FEATURES
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DESCRIPTIO
Maximum Offset Voltage of 3μV
Maximum Offset Voltage Drift of 30nV/°C
Small Footprint, Low Profile MS8/GN16 Packages
Single Supply Operation: 2.7V to ±5.5V
Noise: 1.5μVP-P (0.01Hz to 10Hz Typ)
Voltage Gain: 140dB (Typ)
PSRR: 130dB (Typ)
CMRR: 130dB (Typ)
Supply Current: 0.75mA (Typ) per Amplifier
Extended Common Mode Input Range
Output Swings Rail-to-Rail
Operating Temperature Range – 40°C to 125°C
Available in 3mm × 3mm × 0.8mm DFN Package
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APPLICATIO S
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The LTC2051/LTC2052, despite their miniature size, feature uncompromising DC performance. The typical input
offset voltage and offset drift are 0.5μV and 10nV/°C. The
almost zero DC offset and drift are supported with a power
supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of more than 130dB.
The input common mode voltage ranges from the negative
supply up to typically 1V from the positive supply. The
LTC2051/LTC2052 also have an enhanced output stage
capable of driving loads as low as 2kΩ to both supply rails.
The open-loop gain is typically 140dB. The LTC2051/
LTC2052 also feature a 1.5μVP-P DC to 10Hz noise and a
3MHz gain-bandwidth product.
Thermocouple Amplifiers
Electronic Scales
Medical Instrumentation
Strain Gauge Amplifiers
High Resolution Data Acquisition
DC Accurate RC Active Filters
Low Side Current Sense
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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The LTC®2051/LTC2052 are dual/quad zero-drift operational amplifiers available in the MS8 and SO-8/GN16 and
S14 packages. For space limited applications, the LTC2051
is available in a 3mm × 3mm × 0.8mm dual fine pitch
leadless package (DFN). They operate from a single 2.7V
supply and support ±5V applications. The current consumption is 750μA per op amp.
TYPICAL APPLICATIO
High Performance Low Cost Instrumentation Amplifier
Input Referred Noise 0.1Hz to 10Hz
2
R2
10k
0.1%
R1
100Ω
0.1%
5V
2
–
8
1/2
LTC2051HV
–VIN
1
3
1
R1
100Ω
0.1%
μV
R2
10k
0.1%
6
–
1/2
LTC2051HV
+
VIN
5
0
+
4
–5V
7
–1
AV = 101
20512 TA01
–2
0
2
4
6
TIME (SEC)
8
10
2052 TA02
20512fd
1
