WM5620LIN datasheet(4/14 Pages) WOLFSON

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Wolfson Microelectronics

WM5620L, WM5620

Electrical Characteristics: WM5620 & WM5620L

VDD = 2.7V to 5.5V, GND = 0 V, RL = 10 k

Ω, CL = 100 pF, TA = full range, unless otherwise stated.

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Reference Inputs

Reference input voltage VREF

A, B, C, D, inputs

GND

VDD - 1.5

Reference input

A, B, C, D, inputs

capacitance

Reference feedthrough

A, B, C, D, inputs (note 11)

- 60

Channel to channel

A, B, C, D, inputs (note 12)

-60

isolation

Dynamic Performance

Output settling time

To 1/2 LSB, VDD = 3 V & 5V

µs

(note13)

Output slew rate

1V/

µs

Input bandwidth

(note 14)

100

kHz

Large Signal Bandwidth

Measured at -3dB point

100

kHz

Digital Crosstalk

Clk = 1MHz sq wave measured at

-50

DACA - DACD

Electrical Characteristics: WM5620 & WM5620L (continued)

Notes:

Absolute Maximum Ratings are stress ratings only.

Permanent damage to the device may be caused by

continuously operating at or beyond these limits.

Device functional operating range limits are given

under Recommended Operating Conditions.

Guaranteed performance specifications are given

under Electrical Characteristics at the test conditions

specified.

Total Unadjusted Error is the sum of integral linear-

ity error, zero code error and full scale error over the

input code range.

Differential Nonlinearity (DNL) is the difference

between the measured and ideal 1 LSB amplitude

change of any two adjacent codes. A guarantee of

monotonicity means the output voltage changes in

the same direction (or remains constant) as a change

in the digital input code.

Integral Nonlinearity (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).

Zero code error is the deviation from zero voltage

output when the digital input code is zero.

6. Zero code error temperature coefficient is given by:

ZCETC = (ZCE(Tmax) - ZCE(Tmin))/VREF x 10

(Tmax - Tmin)

7. Zero-code Error Rejection Ratio (ZCE-RR) is meas-

ured by varying the VDD voltage, from 4.5 to 5.5 V

d.c., and measuring the proportion of this signal im-

posed on the zero-code output voltage.

8. Full-scale error is the deviation from the ideal full-

scale output (VREF - 1 LSB) with an output load of

10k

Ω

9. Full-Scale Temperature Coefficient is given by:

FSETC = (FSE(Tmax) - FSE(Tmin))/VREF x 106/(Tmax -

Tmin)

10. Full Scale Error Rejection Ratio (FSE-RR) is meas-

ured by varying the VDD voltage, from 4.5 to 5.5 V

d.c., and measuring the proportion of this signal im-

posed on the full-scale output voltage.

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