LT1884/LT1885

6

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

Note 2: The inputs are protected by back-to-back diodes. If the differential

input voltage exceeds 0.7V, the input current should be limited to less than

10mA.

Note 3: A heat sink may be required to keep the junction temperature

below absolute maximum.

Note 4: The LT1884C/LT1885C and LT1884I/LT1885I are guaranteed

functional over the operating temperature range of – 40

°C to 85°C.

Note 5: The LT1884C/LT1885C are designed, characterized and expected

to meet specified performance from – 40

°C to 85°C but are not tested or

QA sampled at these temperatures. LT1884I is guaranteed to meet

specified performance from – 40

°C to 85°C.

Note 6: This parameter is not 100% tested.

Note 7: Matching parameters are the difference between amplifiers A and

B in the LT1884 and between amplifiers A and D and B and C in the

LT1885.

Note 8: This parameter is the difference between the two noninverting

input bias currents.

Note 9:

∆CMRR and ∆PSRR are defined as follows: CMRR and PSRR are

measured in

µV/V on each amplifier. The difference is calculated in µV/V

and then converted to dB.

ELECTRICAL CHARACTERISTICS

Distribution of Offset Voltage Drift

TYPICAL PERFOR A CE CHARACTERISTICS

OFFSET VOLTAGE DRIFT (

µV/°C)

–0.9 –0.7 –0.5 –0.3 –0.1 0.1 0.3 0.5 0.7 0.9

12

16

20

24

18845 G01

8

4

0

TEMPERATURE (

°C)

–50 –30 –10 10

30

50

70

90 110 125

50

100

150

200

18845 G02

0

–50

–100

–150

–200

TEMPCO: –55

°C TO 125°C

10 REPRESENTATIVE UNITS

500

400

300

200

100

0

10

µA

1mA

10mA

18845 G03

100

µA

125

°C

–55

°C

25

°C

Input Offset Voltage

vs Temperature

500

400

300

200

100

0

10

µA

1mA

10mA

18845 G04

100

µA

125

°C

–55

°C

25

°C

Gain vs Frequency

FREQUENCY (Hz)

140

120

100

80

60

40

20

0

–20

18845 G05

0.1

1

10

100

1k

10k 100k 1M 10M

Gain, Phase Shift vs Frequency

FREQUENCY (Hz)

100

90

80

70

60

50

40

30

20

10

0

–10

–20

–80

–90

–100

–110

–120

–130

–140

–150

–160

–170

–180

18845 G06

10k

100k

1M

10M

PHASE SHIFT

GAIN