CYRUSTEK CO.

ADC with serial output

continued from previous page

Pin No.

Symbol

Type

Description

34

BZOUT

O

Piezo buzzer output. Driving a buzzer at 2.5KHz audio frequency.

1. Whenever the readout is less than 30 and BZINS is connected to

V+, BZOUT will generate a 2.5 KHz sound output.

2. Whenever the BZINM is connected to V+ it will force the

BZOUT to generate 2.5KHz sound output.

35

BZINS

I

Buzzer control slave input.

This pin is internally pulled-down to

TEST1. See BZOUT

36

CLK

I

External clock input pin for serial data accessing.

37

SDO

O

Serial data output pin.

38

BZINM

I

Buzzer control master pin. This pin is internally pulled-down to TEST1.

See BZOUT

39

EOC

O

End of conversion indicator.

40

V-

P

Negative supply voltage. Connecting to battery negative terminal.

41

VINT

-

Integrator output.

42

VBUFF

-

Integration register connection.

43

CAZ

-

Auto-zero capacitor connection.

44

VIN-

I

Analog low input signal.

45

VIN+

I

Analog high input signal.

46

ANA-COM

O

Set the common-mode voltage for the system.

47

CREF-

-

Negative capacitor connection for on-chip A/D converter.

48

CREF+

-

Positive capacitor connection for on-chip A/D converter.

Note:

1. -/MHz for ES5108D

Absolute Maximum Ratings

Characteristic

Rating

Supply Voltage (V+ to V-)

12V

Analog Input Voltage (either input)

V+ to V-

Reference Input Voltage (either input)

V+ to V-

Clock Input

DGND to V+

Power Dissipation(plastic package)

800mW

Operating Temperature

C to

C

Storage Temperature

C to

C

Lead Temperature (soldering, 10sec)

C

Electrical Characteristics

Parameter

Symbol

Test Condition

Min.

Typ.

Max.

Units

DC Characteristics Zero In-

put Reading

–

, full-

scale=200.0mV

-000.0

+000.0

Digital Reading

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7

November 23, 2006