LTC2054 Datasheet, PDF (1/12 Pages) Linear Technology – Low Power Zero-Drift Operational Amplifiers

FEATURES
s _{Supply Current 175µA (Max), Guaranteed}
Over Temperature
s _{Offset Voltage 3µV (Max)}
s _{Offset Voltage Drift 30nV/°C (Max)}
s _{Noise: 1.6µVP-P (0.01Hz to 10Hz Typ)}
s _{Voltage Gain: 140dB (Typ)}
s _{PSRR: 130dB (Typ)}
s _{CMRR: 130dB (Typ)}
s _{Input Bias Current <1pA (Typ)}
s _{Supply Operation: 2.7V to 6V (LTC2054)}
2.7V to ±5.5V (LTC2054HV)
s _{Common Mode Input Range from V}^– _{to V}⁺ _–0.5V
s _{Output Swings Rail-to-Rail}
s _{Low Profile (1mm) SOT-23 (ThinSOT™) Package}
U
APPLICATIO 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}
s _{Low Side Current Sense}
s _{Battery-Powered Systems}
LTC2054/LTC2054HV
Low Power Zero-Drift
Operational Amplifiers
in SOT-23
DESCRIPTIO
The LTC^®2054 and LTC2054HV are low power, low noise
zero-drift operational amplifiers available in the
5-lead SOT-23 package. The LTC2054 operates from a
single 2.7V to 6V supply. The LTC2054HV operates on
supplies from 2.7V to ±5.5V. The current consumption is
150µA (typical), 175µA maximum over temperature.
The LTC2054, despite its miniature size, features uncom-
promising DC performance. The typical input offset volt-
age and offset drift are 0.5µV and 25nV/°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 0.5V from the positive supply. The
open-loop gain is typically 140dB. The LTC2054 also
features a 1.6µV_P-P DC to 10Hz noise and a 500kHz gain
bandwidth product.
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
TYPICAL APPLICATION
5V
LT1790-2.5
Differential Bridge Amplifier
5V
0.1µF
1µF
499k
10kΩ
BRIDGE
4_– 5
LTC2054HV ¹
3₊
2
0.1µF _499k
– 5V
A_V = 100
2054 TA01
Supply Current vs
Temperature
250
225
200
175
V_S = ±5V
150
V_S = ±2.5V
125
V_S = ±1.5V
100
75
50
25
0
–45 –25 –5 15 35 55 75
TEMPERATURE (°C)
2054 TA02
2054f
1