ADS8342

SBAS277 – MAY 2003

www.ti.com

6

ELECTRICAL CHARACTERISTICS (continued)

Over recommended operating free-air temperature range at –40

°C to +85°C, ±AVDD =±DVDD =±5V, BVDD = +5V, VREF = +2.5V, fCLK = 5MHz, and

fSAMPLE = 250kSPS, unless otherwise noted.

PARAMETER

UNIT

ADS8342IB

ADS8342I

TEST CONDITIONS

PARAMETER

UNIT

MAX

TYP(1)

MIN

MAX

TYP(1)

MIN

TEST CONDITIONS

Power-Supply Requirements

Negative analog power supply (–AVDD)

–5.25

–4.75

:

:

V

Positive analog power supply (+AVDD)

4.75

5.25

:

:

V

Negative digital power supply (–DVDD)

–5.25

–4.75

:

:

V

Positive digital power supply (+DVDD)

4.75

5.25

:

:

V

I/O buffer power supply (BVDD)

Low-voltage levels

2.7

3.6

:

:

V

I/O buffer power supply (BVDD)

5V logic levels

4.5

+DVDD

:

:

V

Negative analog operating supply

current (–AIDD)

11.5

13.8

:

:

mA

Positive analog operating supply current

(+AIDD)

14

16.8

:

:

mA

Negative digital operating supply

current (–DIDD)

8.3

9.9

:

:

mA

Positive digital operating supply current

(+DIDD)

7.1

8.5

:

:

mA

I/O buffer operating supply current

BVDD = 3V

0.65

0.81

:

:

mA

I/O buffer o erating su

ly current

(BIDD)

BVDD = 5V

1

1.25

:

:

mA

Power Dissipation

BVDD = 3V

208

250

:

:

mW

(1) All typical values are at TA = +25°C.

(2) Ensured by design.

(3) Applies for 5.0V nominal supply: BVDD (min) = 4.5V and BVDD (max) = 5.5V.

(4) Applies for 3.0V nominal supply: BVDD (min) = 2.7V and BVDD (max) = 3.6V.