EVAL-AD5790SDZ View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
EVAL-AD5790SDZ Datasheet PDF : 27 Pages
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Data Sheet
System Ready, 20-Bit, ±2 LSB INL,
Voltage Output DAC
AD5790
FEATURES
Single 20-bit voltage output DAC, ±2 LSB INL
8 nV/√Hz output noise spectral density
0.1 LSB long-term linearity error stability
±0.018 ppm/°C gain error temperature coefficient
2.5 µs output voltage settling time
3.5 nV-sec midscale glitch impulse
Integrated precision reference buffers
Operating temperature range: −40°C to +125°C
4 mm × 5 mm LFCSP package
Wide power supply range of up to ±16.5 V
35 MHz Schmitt-triggered digital interface
1.8 V compatible digital interface
APPLICATIONS
Medical instrumentation
Test and measurement
Industrial control
Scientific and aerospace instrumentation
Data acquisition systems
Digital gain and offset adjustment
Power supply control
GENERAL DESCRIPTION
The AD57901 is a single, 20-bit, unbuffered voltage output digital-
to-analog converter (DAC) that operates from a bipolar supply of
up to 33 V. The AD5790 accepts a positive reference input in the
range of 5 V to VDD − 2.5 V and a negative reference input in the
range of VSS + 2.5 V to 0 V. The AD5790 offers a relative
accuracy specification of ±2 LSB maximum range, and
operation is guaranteed monotonic with a −1 LSB to +3 LSB
differential nonlinearity (DNL) specification.
The part uses a versatile 3-wire serial interface that operates at
clock rates of up to 35 MHz and is compatible with standard
serial peripheral interface (SPI), QSPIâ„¢, MICROWIREâ„¢, and
DSP interface standards. Reference buffers are also provided on
chip. 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 place. The part provides a disable feature that places the
output in a defined load state. The part provides an output
clamp feature that places the output in a defined load state.
1 Protected by U.S. Patent No. 7,884,747 and 8,089,380.
Rev. E
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FUNCTIONAL BLOCK DIAGRAM
VCC
VDD
VREFP
IOVCC
SDIN
SCLK
SYNC
SDO
LDAC
CLR
RESET
INPUT
SHIFT
20
REGISTER
AND
CONTROL
LOGIC
DAC 20
REG
20-BIT
DAC
6.8kΩ 6.8kΩ
A1
RFB
R1 RFB
INV
VOUT
6kΩ
POWER-ON-RESET
AND CLEAR LOGIC
AD5790
DGND
VSS AGND
VREFN
Figure 1.
PRODUCT HIGHLIGHTS
1. 20-bit resolution.
2. Wide power supply range of up to ±16.5 V.
3. −40°C to +125°C operating temperature range.
4. Low 8 nV/√Hz noise.
5. Low ±0.018 ppm/°C gain error temperature coefficient.
COMPANION PRODUCTS
Output Amplifier Buffer: AD8675, ADA4898-1, ADA4004-1
External Reference: ADR445, ADR4550
DC-to-DC Design Tool: ADIsimPowerâ„¢
Additional companion products on the AD5790 product page.
Table 1. Related Devices
Part No.
Description
AD5791
20-bit, 1 LSB accurate DAC
AD5780
18-bit, ±1 LSB INL, voltage output DAC ,
buffered reference inputs
AD5781
18-bit, ±1 LSB INL, voltage Output DAC ,
unbuffered reference inputs
AD5760
16-bit, ±0.5 LSB INL, voltage Output DAC
AD5541A/AD5542A 16-bit, 1 LSB accurate 5 V DAC
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2011-2018 Analog Devices, Inc. All rights reserved.
Technical Support
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