1

LTC2054/LTC2054HV

2054f

TEMPERATURE (

°C)

–45

250

225

200

175

150

125

100

75

50

25

0

–5

2054 TA02

35

15

–25

55

75

APPLICATIO S

DESCRIPTIO

FEATURES

Low Power Zero-Drift

Operational Amplifiers

in SOT-23

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

s

Supply Current 175

Over Temperature

s

Offset Voltage 3

µV (Max)

s

Offset Voltage Drift 30nV/

°C (Max)

s

Noise: 1.6

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

s

Output Swings Rail-to-Rail

s

Low Profile (1mm) SOT-23 (ThinSOT™) Package

The LTC

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

150

µA (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 0.5

µV 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 1.6

bandwidth product.

Supply Current vs

Temperature

Differential Bridge Amplifier

, LTC and LT are registered trademarks of Linear Technology Corporation.

–

+

5V

0.1

µF

499k

0.1

µF

499k

5

1

2

3

4

1

µF

5V

2054 TA01

10k

Ω

BRIDGE

LTC2054HV

–5V

LT1790-2.5

ThinSOT is a trademark of Linear Technology Corporation.