CS4373A

4

DS699F2

1.

CHARACTERISTICS AND SPECIFICATIONS

•

Min / Max characteristics and specifications are guaranteed over the Specified Operating Conditions.

•

•

GND = 0 V. Single-ended voltages with respect to GND, differential voltages with respect to opposite half.

•

Device is connected as shown in Figure 6 on page 17, unless otherwise noted.

SPECIFIED OPERATING CONDITIONS

Notes: 1. VA- must always be the most-negative input voltage to avoid potential SCR latch-up conditions.

2. By design, a 2.500 V voltage reference input results in the best signal-to-noise performance.

3. Full-scale accuracy is directly proportional to the voltage reference absolute accuracy.

4. VREF inputs must satisfy: VA- < VREF- < VREF+ < VA+.

Parameter

Symbol

Min

Nom

Max

Unit

Bipolar Power Supplies

Positive Analog

VA+

2.45

2.50

2.55

V

Negative Analog

(Note 1)

VA-

-2.45

-2.50

-2.55

V

Positive Digital

VD

3.20

3.30

3.40

V

Voltage Reference Input

{VREF+} - {VREF-}

(Note 2, 3)

VREF

-

2.500

-

V

VREF-

(Note 4)VREF-

-

VA -

-

V

Thermal

Ambient Operating Temperature

Industrial (-IS, -ISZ)

-40

25

85

°C

Modes of Operation

Selection

MODE[2:0]

Mode Description

0

0 0 0

Sleep mode.

1

0 0 1

AC OUT and BUF outputs.

2

0 1 0

AC OUT only, BUF high-z.

3

0 1 1

AC BUF only, OUT high-z.

4

1 0 0

DC common mode output.

5

1 0 1

DC differential output.

6

1 1 0

AC common mode output.

7

1 1 1

Sleep mode.

Attenuation

Selection

ATT[2:0]

Attenuation

dB

0

000

1/1

0 dB

1

0 0 1

1/2

-6.02 dB

2

0 1 0

1/4

-12.04 dB

3

0 1 1

1/8

-18.06 dB

4

1 0 0

1/16

-24.08 dB

5

1 0 1

1/32

-30.10 dB

6

1 1 0

1/64

-36.12 dB

7

1 1 1

reserved

reserved

Table 1. Selections for Operational Mode and Attenuation