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Duolithic™ Burr-Brown Corporation

12-Bit 900ns

ANALOG-TO-DIGITAL CONVERTER

FEATURES

q FAST CONVERSION: 900ns

q CAN BE SHORT-CYCLED

q INPUT RANGES:

q HIGH SIGNAL/NOISE RATIO: 68dB

q LOW IMD: 75dB

q PARALLEL AND SERIAL OUTPUT

q 32-PIN CERAMIC DIP PACKAGE

APPLICATIONS

q DIGITAL SIGNAL PROCESSING

q HIGH-SPEED DATA ACQUISITION

SYSTEMS

q MEDICAL INSTRUMENTATION

q ANALYTICAL INSTRUMENTATION

q TEST AND IMAGING SYSTEMS

q WAVEFORM ANALYZERS

DESCRIPTION

The ADC601 is a high-speed Duolithic™ (two chips)

successive approximation analog-to-digital converter.

This unique two-chip design utilizes a bipolar technol-

ogy with on-chip thin film resistors to preserve analog

accuracy and a high-speed CMOS chip to perform

digital logic control. Outstanding linearity, noise, and

dynamic range are achieved by this converter design.

The ADC601 has been tested with several sample/hold

amplifiers and distortion results are documented in this

data sheet.

The ADC601 is complete with internal reference, clock,

and comparator and is packaged in a 32-pin ceramic

DIP. Conversion time is set at the factory to 900ns.

Serial and parallel output performance is guaranteed

with no missing codes over the full input voltage,

power supply, and operating temperature range. The

gain and offset errors are laser trimmed to specifica-

tion. Optionally they may be externally adjusted to

zero.

Internal scaling resistors are provided for the selection

of analog signal input ranges of

±5V, ±10V and 0V to

–10V. The ADC601’s input is specifically designed to

be easily driven with minimal disturbance to the driv-

ing amplifier.

Output codes are available in complementary binary

for unipolar inputs and bipolar offset binary for bipolar

inputs.

All digital inputs and outputs are TTL-compatible.

Power supply requirements are

±15V and +5V.

12-Bit

Successive Approx

Register (SAR)

Clock

Parallel

Digital

Output

Clock Rate Control

Clock Out

Status

Serial Out

Bipolar Offset

Comparator In

Input

Range Select

Convert

Command

Comparator

–

+

International Airport Industrial Park

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Mailing Address: PO Box 11400

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Tucson, AZ 85734

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Street Address: 6730 S. Tucson Blvd.

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Tucson, AZ 85706

Tel: (520) 746-1111

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Twx: 910-952-1111

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Cable: BBRCORP

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Telex: 066-6491

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FAX: (520) 889-1510

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Immediate Product Info: (800) 548-6132

PDS-867C

Printed in U.S.A. March, 1992

ADC601