1

LTC2054/LTC2055

sn20545 20545fas

Single/Dual

Micropower Zero-Drift

Operational Amplifiers

Guaranteed Over Temperature

■

■

PSRR and CMRR: 130dB (Typ)

■

Supply Operation:

2.7V to 6V (LTC2054/LTC2055)

2.7V to ±5.5V (LTC2054HV/LTC2055HV)

■

Low Profile (1mm) SOT-23, MS8 and

3mm × 3mm × 0.8mm DFN Packages

The LTC

dual zero-drift operational amplifiers available in the SOT-23

(ThinSOT

cations, the LTC2055 is also available in a 3mm × 3mm ×

0.8mm dual fine pitch leadless package (DFN). They

operate from a single 2.7V minimum supply and support

±5V applications. The current consumption is typically

150µA for the LTC2054 and 130µA/amp for the LTC2055.

The LTC2054/LTC2055, despite their miniature size, fea-

ture uncompromising DC performance. The typical input

offset voltage 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 rejec-

tion 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/LTC2055

gain-bandwidth product.

Supply Current (per Amplifier)

–48V Low Side Precision Current Sense

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

FEATURES

DESCRIPTIO

TYPICAL APPLICATIO

APPLICATIO S

ThinSOT is a trademark of Linear Technology Corporation

–

+

0.01µF

0.1µF

0.1µF

0.003Ω

1% 3W

39k

BZX84C5V1

–48V SUPPLY

–

+

100Ω

1%

LTC2054

20545 TA01

–

+

10k

1%

5V

LTC2054

–48V LOAD

Q1

ZETEX

ZVN3320F

100Ω

TEMPERATURE (°C)

20545 TA01b

250

225

200

175

150

125

100

75

50

25

0

–40

125

25

45

70

85

5

–15

LTC2054

LTC2055