DAC729 Datasheet, PDF (1/12 Pages) Burr-Brown (TI) – Ultra-High Resolution 18-BIT DIGITAL-TO-ANALOG CONVERTER

DAC729
DAC729
Ultra-High Resolution
18-BIT DIGITAL-TO-ANALOG CONVERTER
FEATURES
q 16-BIT LINEARITY GUARANTEED
(K Grade)
q USER ADJUSTABLE TO 18-BIT
LINEARITY
q PRECISION INTERNAL REFERENCE
q FAST SETTLING, LOW NOISE INTERNAL
OP AMP
q LOW DRIFT
q HERMETIC 40-PIN CERAMIC PACKAGE
q I_OUT OR V_OUT OPERATION
DESCRIPTION
The DAC729 sets the standard in very high accuracy
digital-to-analog conversion. It is supplied from the
factory at a guaranteed linearity of 16 bits, and is user-
adjustable to 18-bit linearity (1LSB = FSR/262144).
To attain this high level of accuracy, the design takes
advantage of Burr-Brown’s thin-film monolithic DAC
process, dielectric op amp process, hybrid capabilities,
and advanced test and laser-trim techniques.
The DAC729 hybrid layout is specifically partitioned
to minimize the effects of external load-current-
induced thermal errors. The op amp design consists of
a fast settling precision op amp with a current buffer
within the feedback loop. This buffer isolates the load
from the precision op amp, which results in a fast
settling (8µs to 16 bits) output. The standard 40-pin
package offers full hermeticity, contributing to the
excellent reliability of the DAC729.
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18-Bit
I_OUT
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DAC
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Precision
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10V
Reference
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Servo-Loop
Amplifier
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5kΩ
5kΩ
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5kΩ
5kΩ
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International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: [phone] • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: [phone] (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: [phone] • Immediate Product Info: [phone]
©_{1988 Burr-Brown Corporation}
PDS-749C
Printed in U.S.A. October, 1993