2-Quadrant Multiplying Mode, VOUT = 0 V" />
參數(shù)資料
型號(hào): AD5557CRUZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 7/20頁(yè)
文件大?。?/td> 0K
描述: IC DAC 14BIT 2CH I OUT 38TSSOP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
設(shè)計(jì)資源: Precision, Unipolar, Inverting Conversion Using AD5547/57 DAC (CN0026)
Precision, Unipolar, Noninverting Configuration for the AD5547/57 DAC (CN0027)
Precision, Bipolar, Configuration for AD5547/AD5557 DAC (CN0028)
標(biāo)準(zhǔn)包裝: 1
設(shè)置時(shí)間: 500ns
位數(shù): 14
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
電壓電源: 單電源
功率耗散(最大): 55µW
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 38-TFSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 38-TSSOP
包裝: 管件
輸出數(shù)目和類型: 2 電流,單極;2 電流,雙極
采樣率(每秒): 2M
產(chǎn)品目錄頁(yè)面: 783 (CN2011-ZH PDF)
Data Sheet
AD5547/AD5557
Rev. D | Page 15 of 20
2-Quadrant Multiplying Mode, VOUT = 0 V to +VREF
The AD5547/AD5557 are designed to operate with either
positive or negative reference voltages. As a result, a positive
output can be achieved with an additional op amp, (see
Figure 22); the output becomes
VOUT = +VREF × D/65,536 (AD5547)
(3)
VOUT = +VREF × D/16,384 (AD5557)
(4)
Table 8 shows the positive output vs. code for the AD5547.
Table 8. AD5547 Unipolar Mode Positive Output vs. Code
D in Binary
V
OUT (V)
1111 1111 1111 1111
+V
REF(65,535/65,536)
1000 0000 0000 0000
+V
REF/2
0000 0000 0000 0001
+V
REF(1/65,536)
0000 0000 0000 0000
0
C9
1F
C8
0.1F
–5V
WR
RS
2
LDAC
–2.5V
+2.5V
0V TO +2.5V
+5V
04452-
005
AD8628
AD5547/AD5557
C7
R1A
16/14 DATA
VDD
RCOMA
R2
R1
ROFSA
RFBA
C6
RFB
ROFS
MSB A0, A1
IOUTA
AGNDA
U2B
C4
1F
0.1F
C1
1F
C2
1F
C3
0.1F
C5
VOUTA
VREFA
MSB
A0, A1
LDAC
+V
–V
GND
ADR03
4
VOUT
TRIM
5
6
VIN
U3
U2
2
+5V
16-/14-BIT
Figure 22. Unipolar 2-Quadrant Multiplying Mode, VOUT = 0 to +VREF
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