LTC1992 Family

6

1992fb

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. +VS = 5V, –VS = 0V, VINCM = VOUTCM = VOCM = 2.5V, unless otherwise

noted. VOCM is the voltage on the VOCM pin. VOUTCM is defined as (+VOUT + –VOUT)/2. VINCM is defined as (+VIN + –VIN)/2. VINDIFF is

defined as (+VIN – –VIN). VOUTDIFF is defined as (+VOUT – –VOUT). Typical values are at TA = 25°C. Specifications apply to the

LTC1992-5 only.

SYMBOL PARAMETER

CONDITIONS

LTC1992-5CMS8

LTC1992-5ISM8

LTC1992-5HMS8

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

GDIFF

Differential Gain

Differential Gain Error

Differential Gain Nonlinearity

Differential Gain Temperature Coefficient

l

l

5

±0.1

50

3.5

±0.3

5

±0.1

50

3.5

±0.35

V/V

%

ppm

ppm/°C

en

Input Referred Noise Voltage Density (Note 7) f = 1kHz

45

45

nV/√Hz

RIN

Input Resistance, Single-Ended +IN, –IN Pins

l

22.5

30

37.5

22

30

38

kΩ

VINCMR

Input Signal Common Mode Range

VS = 5V

–0.1V to 3.9V

–0.1V to 3.9V

V

CMRR

Common Mode Rejection Ratio

(Amplifier Input Referred) (Note 7)

VINCM = –0.1V to 3.7V l

55

60

55

60

dB

SR

Slew Rate (Note 4)

l

0.7

2

0.7

2

V/μs

GBW

Gain-Bandwidth Product

fTEST = 180kHz

4

4

MHz

The

l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.

+VS = 5V, –VS = 0V, VINCM = VOUTCM = VOCM = 2.5V, unless otherwise noted. VOCM is the voltage on the VOCM pin. VOUTCM is defined

as (+VOUT + –VOUT)/2. VINCM is defined as (+VIN + –VIN)/2. VINDIFF is defined as (+VIN – –VIN). VOUTDIFF is defined as (+VOUT – –VOUT).

Typical values are at TA = 25°C. Specifications apply to the LTC1992-10 only.

SYMBOL PARAMETER

CONDITIONS

LTC1992-10CMS8

LTC1992-10ISM8

LTC1992-10HMS8

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

GDIFF

Differential Gain

Differential Gain Error

Differential Gain Nonlinearity

Differential Gain Temperature Coefficient

l

l

10

±0.1

50

3.5

±0.3

10

±0.1

50

3.5

±0.35

V/V

%

ppm

ppm/°C

en

Input Referred Noise Voltage Density (Note 7) f = 1kHz

45

45

nV/√Hz

RIN

Input Resistance, Single-Ended +IN, –IN Pins

l

11.3

15

18.8

11

15

19

kΩ

VINCMR

Input Signal Common Mode Range

VS = 5V

–0.1V to 3.8V

–0.1V to 3.8V

V

CMRR

Common Mode Rejection Ratio

(Amplifier Input Referred) (Note 7)

VINCM = –0.1V to 3.7V l

55

60

55

60

dB

SR

Slew Rate (Note 4)

l

0.7

2

0.7

2

V/μs

GBW

Gain-Bandwidth Product

fTEST = 180kHz

4

4

MHz

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: Output load is connected to the midpoint of the +VS and –VS

potentials. Measurement is taken single-ended, one output loaded at a

time.

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

below the absolute maximum when the output is shorted indefinitely.

Note 4: Differential output slew rate. Slew rate is measured single ended

and doubled to get the listed numbers.

Note 5: The LTC1992C/LTC1992-XC/LTC1992I/LTC1992-XI are guaranteed

functional over an operating temperature of –40°C to 85°C. The

LTC1992H/LTC1992-XH are guaranteed functional over the extended

operating temperature of –40°C to 125°C.

Note 6: The LTC1992C/LTC1992-XC are guaranteed to meet the specified

performance limits over the 0°C to 70°C temperature range and are

designed, characterized and expected to meet the specified performance

limits over the –40°C to 85°C temperature range but are not tested or QA

sampled at these temperatures. The LTC1992I/LTC1992-XI are guaranteed

to meet the specified performance limits over the –40°C to 85°C

temperature range. The LTC1992H/LTC1992-XH are guaranteed to meet the

specified performance limits over the –40°C to 125°C temperature range.

Note 7: Differential offset voltage, differential offset voltage drift, CMRR,

noise voltage density and PSRR are referred to the internal amplifier’s

input to allow for direct comparison of gain blocks with discrete amplifiers.