參數(shù)資料
型號(hào): AD5781BRUZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 19/28頁
文件大?。?/td> 0K
描述: IC DAC 18BIT SRL 20TSSOP
產(chǎn)品變化通告: AD57x1 Feature Change 27/Jul/2011
設(shè)計(jì)資源: 18-Bit Accurate, low noise, precision bipolar DC voltage source (CN0177)
標(biāo)準(zhǔn)包裝: 1,000
設(shè)置時(shí)間: 1µs
位數(shù): 18
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字,雙 ±
工作溫度: -40°C ~ 125°C
安裝類型: 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: 帶卷 (TR)
輸出數(shù)目和類型: *
采樣率(每秒): 1M
AD5781
Data Sheet
Rev. D | Page 26 of 28
APPLICATIONS INFORMATION
TYPICAL OPERATING CIRCUIT
09092-
057
Figure 53. Typical Operating Circuit
Figure 53 shows a typical operating circuit for the AD5781
using an AD8676 for reference buffers and an AD8675 as an
output buffer. To meet the specified linearity, force sense buffers
must be used on the reference inputs. Because the output
impedance of the AD5781 is 3.4 k, an output buffer is
required for driving low resistive, high capacitive loads.
EVALUATION BOARD
An evaluation board is available for the AD5781 to aid
designers in evaluating the high performance of the part with
minimum effort. The AD5781 evaluation kit includes a
populated and tested AD5781 PCB. The evaluation board
interfaces to the USB port of a PC. Software is available with the
evaluation board to allow the user to easily program the
AD5781. The software runs on any PC that has Microsoft
Windows XP (SP2) or Vista (32 bits) installed. The EVAL-
AD5781 data sheet is available, which gives full details on the
operation of the evaluation board
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