LTC2051 Datasheet, PDF (1/4 Pages) Linear Technology – Dual Zero-Drift Operational Amplifier

FEATURES
s _{Maximum Offset Voltage of 3µV}
s _{Maximum Offset Voltage Drift of 30nV/°C}
s _{Small Footprint, Low Profile MS8 Package}
s _{Noise: 1.5µVP-P (0.1Hz to 10Hz Typ)}
s _{Voltage Gain: 140dB (Typ)}
s _{PSRR: 130dB (Typ)}
s _{CMRR: 130dB (Typ)}
s _{Supply Current: 0.75mA (Typ) per Amplifier}
s _{Single Supply Operation: 2.7V to 11V}
s _{Extended Common Mode Input Range}
s _{Output Swings Rail-to-Rail}
s _{Overload Recovery Time: 2ms (Typ)}
s _{Operating Temperature Range –40°C to 85°C}
APPLICATI S
s _{Thermocouple Amplifiers}
s _{Electronic Scales}
s _{Medical Instrumentation}
s _{Strain Gauge Amplifiers}
s _{High Resolution Data Acquisition}
s _{DC Accurate RC Active Filters}
Final Electrical Specifications
LTC2051
Dual Zero-Drift
Operational Amplifier
February 2000
DESCRIPTIO
The LTC^®2051 is a dual zero-drift operational amplifier
available in the MS8 and SO-8 packages. It operates from
a single 2.7V supply while still supporting ±5V applica-
tions. The power consumption is 750µA per op amp.
The LTC2051, despite its miniature size, features uncom-
promising DC performance. The typical input offset volt-
age 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 1V from the positive supply. The LTC2051
also has an enhanced output stage capable of driving
loads as low as 1kΩ to both supply rails. The open-loop
gain, loaded with 1kΩ, is in excess of 140dB. The LTC2051
also features a 1.5µV_P-P DC to 10Hz noise and a 3MHz gain
bandwidth product.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATI
High Performance Low Cost Instrumentation Amplifier
R1
499Ω
0.1%
R2
100k
5V
0.1% _{2 –}
8
1/2
1
LTC2051HV
–V_IN ³ +
R2
100k
0.1%
R1
499Ω
0.1% _{6 –}
1/2
7
LTC2051HV
V_IN ⁵ +
4 ^AV ^{= 201}
–5V
2051 TA01
Input Referred Noise 0.1Hz to 10Hz
V_S = 5V
3
1
0
–1
–3
0
2
4
6
8
10
TIME (s)
LT2051 TA02
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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