REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

AD9816

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

© Analog Devices, Inc., 1998

Complete 12-Bit 6 MSPS

CCD/CIS Signal Processor

FUNCTIONAL BLOCK DIAGRAM

VINR

VINB

OFFSET

CLAMP/CDS

AVDD

AVSS

CAPT

CAPB

CML PGAOUT VREF

DVDD

DVSS DRVDD DRVSS

OEB

DOUT

11:0

SCLK

SLOAD

SDATA

CDSCLK2

ADCCLK

CLAMP/CDS

+

DAC

DAC

+

DAC

PGA

PGA

BANDGAP

REFERENCE

MUX

REGISTER

CONFIGURATION

REGISTER

R

G

B

8

OFFSET

REGISTERS

R

G

B

GAIN

REGISTERS

DIGITAL

CONTROL

PORT

12

100mV

1X–6X

MUX

PGA

+

CLAMP/CDS

VING

12-BIT

ADC

CDSCLK1

AD9816

8

FEATURES

12-Bit 6 MSPS A/D Converter

No Missing Codes Guaranteed

3-Channel or 1-Channel Operation

Correlated Double Sampling

8-Bit Programmable Gain

8-Bit Offset Adjustment

PGA Output Monitor

Input Clamp Circuitry

Internal Voltage Reference

3-Wire Serial Interface

+3.3 V/+5 V Digital Output Compatibility

44-Lead MQFP Package

Low Power CMOS: 420 mW Typ

PRODUCT DESCRIPTION

The AD9816 is a complete analog signal processor for CCD

and CIS applications. Included is all the necessary circuitry to

perform three-channel conditioning and sampling for a variety

of imaging applications.

The signal chain consists of an input clamp, correlated double

sampler (CDS), offset adjust DAC, programmable gain ampli-

fier and a 12-bit A/D converter. The CDS and input clamp may

be disabled for CIS applications.

The internal registers are programmed using a 3-wire serial

interface and provide adjustment of the gain, offset and operat-

ing mode.

The AD9816 operates from a +5 V supply, typically consumes

420 mW of power and is packaged in a 44-lead MQFP.