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Analog Devices Semiconductor Electronic Components Datasheet

AD5791-EP Datasheet

Voltage Output DAC

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AD5791-EP pdf
Enhanced Product
1 ppm, 20-Bit,
±1 LSB INL, Voltage Output DAC
AD5791-EP
FEATURES
1 ppm resolution
1 ppm INL
7.5 nV/√Hz noise spectral density
0.19 LSB long-term linearity stability
<0.05 ppm/°C temperature drift
1 µs settling time
1.4 nV-sec glitch impulse
20-lead TSSOP package
Wide power supply range up to ±16.5 V
35 MHz Schmitt triggered digital interface
1.8 V compatible digital interface
Extended automotive operating temperature range: −55°C
to +125°C
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC
standard)
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Medical instrumentation
Test and measurement
Industrial control
High end scientific and aerospace instrumentation
GENERAL DESCRIPTION
The AD5791-EP1 is a single 20-bit, unbuffered voltage-output
DAC that operates from a bipolar supply of up to 33 V. The
AD5791 accepts a positive reference input in the range 5 V to
VDD − 2.5 V and a negative reference input in the range VSS +
2.5 V to 0 V. The AD5791-EP offers a relative accuracy
specification of ±1 LSB max, and operation is guaranteed
monotonic with a ±1 LSB DNL maximum specification.
The part uses a versatile 3-wire serial interface that operates at
clock rates up to 35 MHz and that is compatible with standard
SPI, QSPI™, MICROWIRE™, and DSP interface standards. The
part incorporates a power-on reset circuit that ensures the DAC
output powers up to 0 V in a known output impedance state
and remains in this state until a valid write to the device takes
FUNCTIONAL BLOCK DIAGRAM
VCC
VDD
VREFPF VREFPS
IOVCC
SDIN
SCLK
SYNC
SDO
LDAC
CLR
RESET
AD5791-EP
INPUT
SHIFT
REGISTER
AND
CONTROL
LOGIC
20
DAC 20
REG
20-BIT
DAC
6.8kΩ 6.8kΩ
A1 RFB
R1 RFB
INV
VOUT
6kΩ
POWER-ON RESET
AND CLEAR LOGIC
DGND VSS AGND VREFNF VREFNS
Figure 1.
COMPANION PRODUCTS
Ultra precision op amps: AD8675, AD8676
High voltage op amp: ADA4898-1
Additional companion products on the AD5791 product page
Table 1. Related Device
Part No.
Description
AD5781
18-bit, 0.5 LSB INL, voltage output DAC
place. The part provides an output clamp feature that places the
output in a defined load state.
The AD5791-EP is available in a compact, 20-lead TSSOP
package and operates at the extended automotive temperature
range of −55°C to +125°C. Additional application and technical
information can be found in the AD5791 data sheet.
PRODUCT HIGHLIGHTS
1. 1 ppm Accuracy.
2. Wide Power Supply Range up to ±16.5 V.
3. Operating Temperature Range: −55°C to +125°C.
4. Low 7.5 nV/√Hz Noise Spectral Density.
5. Low 0.05 ppm/°C Temperature Drift.
1 Protected by U.S. Patents No. 7,884,747 and 8,089,380. Other patents pending.
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2012–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

AD5791-EP Datasheet

Voltage Output DAC

No Preview Available !

AD5791-EP pdf
AD5791-EP
TABLE OF CONTENTS
Features .............................................................................................. 1
Enhanced Product Features ............................................................ 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Companion Products ....................................................................... 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
REVISION HISTORY
7/13—Rev. 0 to Rev. A
Changes to t1 Test Conditions/Comments and Endnote 2 ......... 5
Deleted Figure 4................................................................................ 7
2/12—Revision 0: Initial Version
Enhanced Product
Specifications .....................................................................................3
Timing Characteristics .................................................................5
Absolute Maximum Ratings ............................................................7
ESD Caution...................................................................................7
Pin Configuration and Function Descriptions..............................8
Typical Performance Characteristics ..............................................9
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 17
Rev. A | Page 2 of 20


Part Number AD5791-EP
Description Voltage Output DAC
Maker Analog Devices
Total Page 20 Pages
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