Production Data

WM2613

WOLFSON MICROELECTRONICS LTD

Production Data Rev 1.0 June 1999

5

Test Conditions:

Ω, C

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

PARAMETER

SYMBOL

TEST

CONDITIONS

MIN

TYP

MAX

UNIT

Reference

Reference input resistance

RREFIN

10

M

Ω

Reference input capacitance

CREFIN

5

pF

Reference feedthrough

+ 1.024V d.c., DAC code 0

-60

dB

Reference input bandwidth

DAC code 2048

Slow

Fast

1

1.6

MHz

MHz

Digital Inputs

High level input current

Input voltage = DVDD

1

µA

Low level input current

Input voltage = 0V

-1

µA

Input capacitance

8

pF

Notes:

1.

Integral non-linearity (INL) is the maximum deviation of the output from the line between zero and full scale excluding the

effects of zero code and full scale errors).

2.

Differential non-linearity (DNL) is the difference between the measured and ideal 1LSB amplitude change

of any adjacent two codes. A guarantee of monotonicity means the output voltage changes in the same

direction (or remains constant) as a change in digital input code.

3.

Zero code error is the voltage output when the DAC input code is zero.

4.

Gain error is the deviation from the ideal full scale output excluding the effects of zero code error.

5.

Power supply rejection ratio is measured by varying AVDD from 4.5V to 5.5V and measuring the

proportion of this signal imposed on the zero code error and the gain error.

6.

Zero code error and Gain error temperature coefficients are normalised to full scale voltage.

7.

Output load regulation is the difference between the output voltage at full scale with a 10k

Ω load and 2kΩ

load. It is expressed as a percentage of the full scale output voltage with a 10k

Ω load.

8.

will increase.

9.

Typical supply current in power down mode is 10nA. Production test limits are wider for speed of test.

10.

Slew rate results are for the lower value of the rising and falling edge slew rates.

11.

Settling time is the time taken for the signal to settle to within 0.5LSB of the final measured value for both rising and

falling edges. Limits are ensured by design and characterisation, but are not production tested

12.