WM8213

Production Data

w

PD Rev 4.1 July 2008

6

ELECTRICAL CHARACTERISTICS

Test Conditions

°C, MCLK = 24MHz unless otherwise stated.

PARAMETER

SYMBOL

TEST

CONDITIONS

MIN

TYP

MAX

UNIT

Overall System Specification (including 16-bit ADC, PGA, Offset and CDS functions)

Conversion rate

24

MSPS

LOWREFS=0, Max Gain

LOWREFS=0, Min Gain

0.25

3.03

Vp-p

Vp-p

Full-scale input voltage range

(see Note 1)

LOWREFS=1, Max Gain

LOWREFS=1, Min Gain

0.15

1.82

Vp-p

Vp-p

Input signal limits (see Note 2)

AGND-0.3

AVDD+0.3

V

Input Capacitance

10

pF

Input Impedance

50

Ω

Full-scale transition error

Gain = 0dB;

PGA[8:0] = 18(hex)

20

mV

Zero-scale transition error

Gain = 0dB;

PGA[8:0] = 18(hex)

20

mV

Differential non-linearity

DNL

1

LSB

Integral non-linearity

INL

25

LSB

Channel to channel gain matching

1

%

Total output noise

Min Gain

Max Gain

12.4

105

LSB rms

LSB rms

References

Upper reference voltage

VRT

LOWREFS=0

LOWREFS=1

1.95

2.05

1.85

2.25

V

Lower reference voltage

VRB

LOWREFS=0

LOWREFS=1

0.95

1.05

1.25

1.25

V

Input return bias voltage

VRX

1.25

V

Diff. reference voltage (VRT-VRB)

LOWREFS=0

LOWREFS=1

0.90

1.0

0.6

1.10

V

Output resistance VRT, VRB, VRX

1

Ω

Notes:

1.

Full-scale input voltage denotes the peak input signal amplitude that can be gained to match the ADC full-scale

input range.

2.

Input signal limits are the limits within which the full-scale input voltage signal must lie.