LTC1992 Family

33

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APPLICATIONS INFORMATION

Table 1. Input Signal Limitations for Some Common Applications

Differential Input Signal, VOCM at Typical ADC Levels. (VINCM must be within the Min and Max table values and

VINDIFF must be less than the table value)

+VS

(V)

–VS

(V)

GAIN

(V/V)

VOCM

(V)

VINCM(MAX)

(V)

VINCM(MIN)

(V)

VINDIFF(MAX)

(VP-PDIFF)

VOUTDIFF(MAX)

(VP-PDIFF)

2.7

0

1

1

1.800

–1.200

4.00

4.00

2.7

0

2

1

1.600

–0.650

2.00

4.00

2.7

0

5

1

1.480

–0.320

0.80

4.00

2.7

0

10

1

1.440

–0.210

0.40

4.00

5

0

1

2

5.400

–2.200

8.00

8.00

5

0

2

2

4.550

–1.150

4.00

8.00

5

0

5

2

4.040

–0.520

1.60

8.00

5

0

10

2

3.870

–0.310

0.80

8.00

5

–5

1

2

5.400

–12.200

12.00

12.00

5

–5

2

2

4.550

–8.650

6.00

12.00

5

–5

5

2

4.040

–6.520

2.40

12.00

5

–5

10

2

3.870

–5.810

1.20

12.00

Differential Input Signal, VOCM at Mid-Supply. (VINCM must be within the Min and Max table values and

VINDIFF must be less than the table value)

+VS

(V)

–VS

(V)

GAIN

(V/V)

VOCM

(V)

VINCM(MAX)

(V)

VINCM(MIN)

(V)

VINDIFF(MAX)

(VP-PDIFF)

VOUTDIFF(MAX)

(VP-PDIFF)

2.7

0

1

1.35

1.450

–1.550

5.40

5.40

2.7

0

2

1.35

1.425

–0.825

2.70

5.40

2.7

0

5

1.35

1.410

–0.390

1.08

5.40

2.7

0

10

1.35

1.405

–0.245

0.54

5.40

5

0

1

2.5

4.900

–2.700

10.00

10.00

5

0

2

2.5

4.300

–1.400

5.00

10.00

5

0

5

2.5

3.940

–0.620

2.00

10.00

5

0

10

2.5

3.820

–0.360

1.00

10.00

5

–5

1

0

7.400

–10.200

20.00

20.00

5

–5

2

0

5.550

–7.650

10.00

20.00

5

–5

5

0

4.440

–6.120

4.00

20.00

5

–5

10

0

4.070

–5.610

2.00

20.00