LTC2051/LTC2052
Dual/Quad Zero-Drift
Operational Amplifiers
FEATURES
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DESCRIPTIO
Maximum Offset Voltage of 3碌V
Maximum Offset Voltage Drift of 30nV/擄C
Small Footprint, Low Profile MS8/GN16 Packages
Single Supply Operation: 2.7V to
鹵5.5V
Noise: 1.5碌V
P-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 鈥?40擄C to 85擄C
The LTC
廬
2051/LTC2052 are dual/quad zero-drift opera-
tional amplifiers available in the MS8 and SO-8/GN16 and
S14 packages. They operate from a single 2.7V supply and
support
鹵5V
applications. The current consumption is
750碌A(chǔ) per op amp.
The LTC2051/LTC2052, despite their miniature size, fea-
ture uncompromising DC performance. The typical input
offset voltage and offset drift are 0.5碌V and 10nV/擄C. The
almost zero DC offset and drift are supported with a power
supply rejection ratio (PSRR) and common mode rejec-
tion 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 2k鈩?to both supply rails.
The open-loop gain is typically 140dB. The LTC2051/
LTC2052 also feature a 1.5碌V
P-P
DC to 10Hz noise and a
3MHz gain-bandwidth product.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
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Thermocouple Amplifiers
Electronic Scales
Medical Instrumentation
Strain Gauge Amplifiers
High Resolution Data Acquisition
DC Accurate RC Active Filters
Low Side Current Sense
TYPICAL APPLICATIO
High Performance Low Cost Instrumentation Amplifier
2
R1
100鈩?/div>
0.1%
R2
10k
0.1%
5V
R2
10k
0.1%
Input Referred Noise 0.1Hz to 10Hz
1
鈥?/div>
碌V
2
8
1
1/2
LTC2051HV
R1
100鈩?/div>
0.1%
0
6
鈥?/div>
鈥揤
IN
3
+
V
IN
5
1/2
LTC2051HV
4
鈥?V
7
A
V
= 101
20512 TA01
鈥?
+
鈥?
0
2
4
6
TIME (SEC)
8
10
2052 TA02
U
U
U
1
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