Datasheet LTC2051, LTC2052 (Analog Devices)

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