5.5 Electrical Characteristics (continued)

minimum and maximum specifications apply from TA = –40°C to +105°C; typical specifications are at TA = 25°C; all

specifications are at AVDD = DVDD = V(REFP) = 5V, V(REFN) = AGND, and fCLK = 4.9152MHz (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

I(AVDD)

Analog supply current

Normal mode, AVDD = 3V, gain = 1, 2

600

1300

µA

Normal mode, AVDD = 3V, gain = 64, 128

1350

2500

Normal mode, AVDD = 5V, gain = 1, 2

650

1300

Normal mode, AVDD = 5V, gain = 64, 128

1350

2500

Standby mode

0.1

1

Power-down

0.1

1

I(DVDD)

Digital supply current

Normal mode, DVDD = 3V, gain = 1, 2

60

95

µA

Normal mode, DVDD = 3V, gain = 64, 128

75

120

Normal mode, DVDD = 5V, gain = 1, 2

95

130

Normal mode, DVDD = 5V, gain = 64, 128

75

120

Standby mode, SCLK = high, DVDD = 3V

45

80

Standby mode, SCLK = high, DVDD = 5V

65

80

Power-down

0.2

1.3

PD

Power dissipation, total

Normal mode, AVDD = DVDD = 3V, gain =

1, 2

2

4.2

mW

Normal mode, AVDD = DVDD = 5V, gain =

1, 2

3.7

7.2

Normal mode, AVDD = DVDD = 3V, gain =

64, 128

4.3

7.9

Normal mode, AVDD = DVDD = 5V, gain =

64, 128

7.1

13.1

Standby mode, AVDD = DVDD = 5V

0.3

0.4

(1)

FSR = full-scale range = VREF / Gain.

(2)

Input offset error specified after calibration. Recalibration minimizes these errors to the level of noise at any temperature.

(3)

Gain errors are calibrated at the factory (AVDD = 5V, all gains, TA = 25°C).

(4)

Specification is verified by the combination of design and final production test.

ADS1232, ADS1234

SBAS350H – JUNE 2005 – REVISED JUNE 2025

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