WM2618CD datasheet(3/10 Pages) WOLFSON

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Production Data

WM2618

WOLFSON MICROELECTRONICS LTD

PD Rev 1.1 October 2000

ELECTRICAL CHARACTERISTICS

Test Conditions:

RL = 10k

Ω, CL = 100pF. VDD = 5V

± 10%, V

REF = 2.048V and VDD = 3V

± 10%, V

REF = 1.024V over recommended operating

free-air temperature range (unless noted otherwise)

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Static DAC Specifications

Resolution

bits

Integral non-linearity

INL

See Note 1

±1.9

±4

LSB

Differential non-linearity

DNL

See Note 2

±0.5

±1

LSB

Zero code error

ZCE

See Note 3

±12

Gain error

See Note 4

0.1

±0.6

% FSR

D.c. power supply rejection ratio

DC PSRR

See Note 5

0.5

mV/V

Zero code error temperature coefficient

See Note 6

ppm/

°C

Gain error temperature coefficient

See Note 6

ppm/

°C

DAC Output Specifications

Output voltage range

VDD - 0.1

Output load regulation

Ω to 10kΩ load

See Note 7

0.1

0.3

Power Supplies

Active supply current

IDD

No load, VIH = VDD, VIL = 0V

VDD = 5.5V, VREF = 2.048V Slow

VDD = 5.5V, VREF = 2.048V Fast

See Note 8

0.6

1.6

1.0

2.5

Power down supply current

No load,

all digital inputs 0V or VDD

0.01

µA

Dynamic DAC Specifications

Slew rate

AC code 128 to 4095, 10%-90%

Slow

Fast

See Note 9

0.3

2.4

0.5

3.0

µs

Settling time

DAC code 128 to 4095

Slow

Fast

See Note 10

12.0

4.0

µs

Glitch energy

Code 2047 to 2048

nV-s

Reference

Reference input resistance

RREFIN

Ω

Reference input capacitance

CREFIN

5pF

Reference feedthrough

VREF = 1VPP at 1kHz

+ 1.024V dc, DAC code 0

-60

Reference input bandwidth

VREF = 0.2VPP + 1.024V dc

DAC code 2048

Slow

Fast

0.5

1.0

MHz

Digital Inputs

High level input current

IIH

Input voltage = VDD

µA

Low level input current

IIL

Input voltage = 0V

-1

µA

Input capacitance

8pF

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