LT1880

1

FEATURES

DESCRIPTIO

APPLICATIO S

TYPICAL APPLICATIO

s

Thermocouple Amplifiers

s

Bridge Transducer Conditioners

s

Instrumentation Amplifiers

s

Battery-Powered Systems

s

Photocurrent Amplifiers

SOT-23, Rail-to-Rail Output,

Picoamp Input Current

Precision Op Amp

Precision Photodiode Amplifier

The LT

mance and rail-to-rail output swing to the SOT-23 pack-

age. Input offset voltage is trimmed to less than 150

µVand

the low drift maintains this accuracy over the operating

temperature range. Input bias current is an ultra low

900pA maximum.

The amplifier works on any total power supply voltage

between 2.7V and 36V (fully specified from 5V to

±15V).

Output voltage swings to within 55mV of the negative

supply and 250mV of the positive supply, which makes the

amplifier a good choice for low voltage single supply

operation.

Slew rates of 0.4V/

µs with a supply current of 1.2mA give

superior response and settling time performance in a low

power precision amplifier.

The LT1880 is available in a 5-lead SOT-23 package.

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

+

–

1880 TA01

S1

C1

39pF

R1

100k, 1%

+

–

OUT

LT1880

320

µV OUTPUT OFFSET, WORST CASE OVER 0°C TO 70°C

60kHz BANDWIDTH

5.8

µs RISE TIME, 10% TO 90%, 100mV OUTPUT STEP

52

S1: SIEMENS INFINEON BPW21 PHOTODIODE (~580pF)

Distribution of Input Offset Voltage

INPUT OFFSET VOLTAGE (

µV)

–140

35

30

25

20

15

10

5

0

–20

60

1880 TA01b

–100

–60

20

100

140

s

Offset Voltage: 150

µV Max

s

Input Bias Current: 900pA Max

s

Offset Voltage Drift: 1.2

µV/°C Max

s

Rail-to-Rail Output Swing

s

Operates with Single or Split Supplies

s

Open-Loop Voltage Gain: 1 Million Min

s

1.2mA Supply Current

s

Slew Rate: 0.4V/

µs

s

Gain Bandwidth: 1.1MHz

s

Low Noise: 13nV/

√Hz at 1kHz

s

Low Profile (1mm) ThinSOT

ThinSOT is a trademark of Linear Technology Corporation.