WM2627

Production Data

WOLFSON MICROELECTRONICS LTD

PD Rev 1.0 April 2001

4

ELECTRICAL CHARACTERISTICS

Test Conditions:

recommended operating free-air temperature range (unless noted otherwise).

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Static DAC Specifications

Resolution

8bits

Integral non-linearity

INL

See Note 1

±0.3

±0.5

LSB

Differential non-linearity

DNL

See Note 2

±0.03

±0.5

LSB

Zero code error

ZCE

See Note 3

±10

mV

Gain error

GE

See Note 4

±0.6

% FSR

Power supply rejection ratio

PSRR

See Note 5

-68

dB

Zero code error temperature coefficient

See Note 6

10

ppm/

°C

Gain error temperature coefficient

See Note 6

10

ppm/

°C

DAC Output Specifications

Output voltage range

Ω

0

AVDD-0.1

V

Output load regulation

2k

Ω to 10kΩ load

See Note 7

0.1

0.25

% of FS

voltage

Power Supplies

AVDD = 5V,

1.4

2.2

AVDD = 5V,

3.5

5.5

AVDD = 3V,

1.0

1.5

Active supply current

AVDD = 3V,

See Note 8

3.0

4.5

mA

Power down supply current

No load, all digital inputs

0V or DVDD

1

µA

Dynamic DAC Specifications

Slew rate

Fast

Slow

See Note 9

1.0

5.0

V/

µs

V/

µs

Settling time

To ±0.1LSB

Slow

Fast

See Note 10

8.5

2.5

µs

µs

Glitch energy

Code 127 to 128

10

nV-s

Signal to noise ratio

SNR

BW = 20kHz

See Note 11

57

dB

Signal to noise and distortion ratio

SINAD

BW = 20kHz

See Note 11

49

dB

Total harmonic distortion

THD

BW = 20kHz

See Note 11

-50

dB

Spurious free dynamic range

SFDR

BW = 20kHz

See Note 11

60

dB