WM8253

Production Data

w

PD, Rev 4.1, August 2011

7

Test Conditions

PARAMETER

SYMBOL

TEST

CONDITIONS

MIN

TYP

MAX

UNIT

Programmable Gain Amplifier

Resolution

8

bits

Gain equation

255

7.57

0]

:

PGA[7

0.78





V/V

Max gain

8.2

8.35

8.8

V/V

Min gain

0.75

0.78

0.87

V/V

Internal channel offset

10

mV

Analogue to Digital Converter

Resolution

16

bits

Maximum Speed

6

MSPS

Full-scale input range

(2*(VRT-VRB))

2.0

V

DIGITAL SPECIFICATIONS

Digital Inputs

High level input voltage

0.8

 DVDD2

V

Low level input voltage

0.2

 DVDD2

V

High level input current

1

A

Low level input current

1

A

Input capacitance

5

pF

Digital Outputs

High level output voltage

DVDD2 - 0.5

V

Low level output voltage

0.5

V

Supply Currents



Total supply current

 active

45.9

mA



Total analogue AVDD, supply

current

 active

39.6

mA



Total digital core, DVDD1,

supply current

 active

3

mA



Digital I/O supply current,

DVDD2

 active (see note 3)

3.3

mA

Supply current

 full power down

mode

30

200

A

Notes:

1.

Digital I/O supply current depends on the capacitive load attached to the pin. The Digital I/O supply current is

measured with approximately 50pF attached to the pin.