a
FEATURES
Complete 16-Bit Converters with Reference and Clock
0.003% Maximum Nonlinearity
No Missing Codes to 14 Bits over Temperature
Fast Conversion
17 s to 16 Bits (AD1376)
10 s to 16 Bits (AD1377)
Short Cycle Capability
Adjustable Clock Rate
Parallel and Serial Outputs
Low Power: 645 mW Typical (AD1376)
585 mW Typical (AD1377)
Industry Standard Pinout
PRODUCT DESCRIPTION
Complete, High Speed
16-Bit A/D Converters
AD1376/AD1377
stability over commercial (0擄C to +70擄C) temperature ranges
(for extended temperature ranges, the pin compatible AD1378
is recommended.) Typical applications include medical and
analytic instrumentation, precision measurement for industrial
robotics, automatic test equipment (ATE), and multichannel
data acquisition systems, servo control systems or anywhere
wide dynamic range is required A proprietary monolithic DAC
and laser-trimmed thin-film resistors guarantee a maximum
nonlinearity of
鹵
0 003% (1/2 LSB
14
.) The converters may be
short cycled to achieve faster conversion times 鈥?15
碌s
to 14 bits
for the AD1376, or 8
碌s
to 14 bits for the AD1377.
PRODUCT HIGHLIGHTS
1. The AD1376/AD1377 provides 16-bit resolution with a maxi-
mum linearity error of
鹵
0.003% (1/2 LSB
14
) at +25擄C.
2. AD1376 conversion time is 14
碌s
(typical) short cycled to 14
bits, and 16
碌s
to 16 bits.
3. AD1377 conversion time is 8
碌s
(typical) short cycled to 14
bits, and 9
碌s
to 16 bits.
4. Two binary codes are available on the digital output. They are
CSB (Complementary Straight Binary) for unipolar input
voltage ranges and COB (Complementary Offset Binary) for
bipolar input ranges. Complementary Twos Complement
(CTC) coding may be obtained by inverting Pin 1 (MSB).
5. The AD1376 and AD1377 include internal reference and
clock, with external clock rate adjust pin, and serial and paral-
lel digital outputs.
The AD1376/AD1377 are high resolution, 16-bit analog-to-
digital converters with internal reference, clock and laser-trim-
med thin-film applications resistors. They are packaged in a
compact 32-pin, ceramic scam sealed (hermetic) dual-in-line
packages (DIP). Thin-film scaling resistors provide bipolar
input ranges of
鹵
2.5 V,
鹵
5 V,
鹵
10 V and unipolar input ranges
of 0 V to +5 V, 0 V to +10 V and 0 V to +20 V.
Digital output data is provided in parallel and serial form with
corresponding
clock
and
status
outputs. All digital inputs and
outputs are TTL compatible.
APPLICATIONS
The AD1376/AD1377 are excellent for use in high resolution
applications requiring moderate speed and high accuracy or
FUNCTIONAL BLOCK DIAGRAM
REV. B
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
漏 Analog Devices, Inc., 1997
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