參數(shù)資料
型號(hào)： AD5791ARUZ
廠(chǎng)商： Analog Devices Inc
文件頁(yè)數(shù)： 1/29頁(yè)
文件大?。?/td> 0K
描述： IC DAC 20BIT SRL 20TSSOP
產(chǎn)品變化通告： AD57x1 Feature Change 27/Jul/2011
標(biāo)準(zhǔn)包裝： 1
設(shè)置時(shí)間： 1µs
位數(shù)： 20
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 雙 ±
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 20-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 20-TSSOP
包裝： 管件
輸出數(shù)目和類(lèi)型： *
采樣率（每秒）： *
1 ppm 20-Bit,
±1 LSB INL, Voltage Output DAC
Data Sheet
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
2010–2013 Analog Devices, Inc. All rights reserved.
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 s settling time
1.4 nV-sec glitch impulse
Operating temperature range: 40°C to +125°C
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
APPLICATIONS
Medical instrumentation
Test and measurement
Industrial control
High end scientific and aerospace instrumentation
FUNCTIONAL BLOCK DIAGRAM
A1
6.8k
6k
6.8k
R1
RFB
20-BIT
DAC
REG
20
INPUT
SHIFT
REGISTER
AND
CONTROL
LOGIC
POWER-ON-RESET
AND CLEAR LOGIC
AD5791
IOVCC
SDIN
VCC
VDD
VREFPF VREFPS
VREFNF
AGND
VSS
DGND
VREFNS
SCLK
SYNC
SDO
LDAC
CLR
RESET
RFB
INV
VOUT
08964-
001
Figure 1.
Table 1. Complementary Devices
Part No.
Description
Ultra precision, 36 V, 2.8 nV/√Hz rail-to-rail
output op amp
Ultra precision, 36 V, 2.8 nV/√Hz dual rail-to-
rail output op amp
High voltage, low noise, low distortion, unity
gain stable, high speed op amp
Table 2. Related Device
Part No.
Description
18-bit, 0.5 LSB INL, voltage output DAC
GENERAL DESCRIPTION
The AD57911 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 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 and in a known output impedance
state and remains in this state until a valid write to the device
takes place. The part provides an output clamp feature that
places the output in a defined load state.
PRODUCT HIGHLIGHTS
1. 1 ppm Accuracy.
2. Wide Power Supply Range up to ±16.5 V.
3. Operating Temperature Range: 40°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. Patent No. 7,884,747. Other patents pending.
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