Advanced Information

WM8816

WOLFSON MICROELECTRONICS LTD

AI Rev 1.1 September 2000

3

ABSOLUTE MAXIMUM RATINGS

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 limits and guaranteed performance specifications are given under Electrical

Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore susceptible to damage

from excessive static voltages. To optimise the distortion and noise performance of pins 3, 4, 13 and 14, the

on-chip ESD protection circuitry has been restricted, and consequently only achieves 300V when characterised

to the Human Body Model. Proper ESD precautions must be taken during handling and storage of this device.

As per JEDEC specification JESD22-A112-A, this product requires specific storage conditions prior to surface mount assembly. It

has been classified as having a Moisture Sensitivity Level of 3 and is therefore supplied in vacuum-sealed moisture barrier bags.

CONDITION

MIN

MAX

Input signal voltage

-20V

+20V

Positive supply voltage (AVDD to AGND, DVDD to DGND)

-0.5V

6V

Input voltage (all other pins)

-0.5V

AVDD + 0.5V

Operating temperature

-40

°C85°C

Storage temperature

-55

°C

125

°C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input signal voltage

-18

+18

V

Positive supply voltage

AVDD, DVDD

4.5

5

5.5

V

Negative supply voltage

AGND, DGND

0

V

Input signal grounds

LGND, RGND

0

V

Operating temperature

-20

60

60

°C

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Analogue Inputs / Outputs

Input resistance

For any gain

7

10

k

Ω

Input capacitance

For any gain

2

pF

Input offset voltage

External OP275

opamp, gain = 1

1mV

Supply current

From AVDD / AGND

2.5

5

mA

Power supply rejection ratio

(Note 1)

PSRR

From AVDD

80

dB

Gain Control

Gain range

G

-111.5

+15.5

dB

Gain step size

D

0.5

dB

Gain error (Note 1)

DE

Lowest gains

guaranteed by

design, not tested in

production.

0.5

dB

Gain match error (Note 1)

ME

Between channels

0.2

dB

Mute attenuation

MATT

113

dB