參數(shù)資料
型號(hào)： MAX5171
廠商： Maxim Integrated Products, Inc.
英文描述： Low-Power, Serial, 14-Bit DACs with Force/Sense Voltage Output
中文描述： 低功耗、串行、14位DAC，帶有加載-感應(yīng)電壓輸出
文件頁(yè)數(shù)： 13/16頁(yè)
文件大?。?/td> 256K
代理商： MAX5171
Daisy-Chaining Devic es
The serial data output pin (DOUT) allows multiple
MAX5171/MAX5173s to be daisy-chained together, as
shown in Figure 8. The advantage of this is that only
two lines are needed to control all of the DACs on the
line. The disadvantage is that it takes n commands to
program the DACs. Figure 9 shows several MAX5171/
MAX5173s sharing one common DIN signal line. In this
configuration, the data bus is common to all devices.
However, this configuration uses more I/O lines
because each device requires a dedicated
CS
line.
The benefit is that only one command is needed to pro-
gram any DAC.
Using an AC Referenc e
The MAX5171/MAX5173 accepts reference voltages
with AC components as long as the reference voltage
remains between 0 and V
DD
- 1.4V. Figure 10 shows a
technique for applying a sine-wave signal to the REF.
The reference voltage must remain above AGND.
Digitally Programmable Current S ourc e
The circuit of Figure 11 places an NPN transistor
(2N3904 or similar) within the op amp feedback loop to
implement a digitally programmable, unidirectional cur-
rent source. The output current is calculated with the
following equation:
I
R
where N is the numeric value of the DAC’s binary input
code and R is the sense resistor shown in Figure 11.
V
N
OUT
REF
16384
=
M
Low-Power, S erial, 14-Bit DACs
with Forc e/S ense Voltage Output
______________________________________________________________________________________
13
DAC CONTENTS
MSB
11 1111 1111 1111
10 0000 0000 0001
10 0000 0000 0000
01 1111 1111 1111
00 0000 0000 0001
00 0000 0000 0000
LSB
2
·
V
REF
(8193/16384)
2
·
V
REF
(8192/16384)
2
·
V
REF
(8191/16384)
2
·
V
REF
(1/16384)
2
·
V
REF
(16383/16384)
ANALOG OUTPUT
0
DAC
V
OUT
V+
V-
+5V/+3.3V
REF
10k
10k
FB
OUT
V
DD
GND
MAX5171
MAX5173
Figure 7. Bipolar Output Circuit
Table 2. Unipolar Code Table
(Circuit of Figure 6)
Table 3. Bipolar Code Table
(Circuit of Figure 7)
MAX5171
MAX5173
DAC
REF
OUT
10k
10k
GND
+5V/+3.3V
V
DD
FB
Figure 6. Unipolar Output Circuit (Rail-to-Rail)
DAC CONTENTS
MSB
11 1111 1111 1111
10 0000 0000 0001
10 0000 0000 0000
LSB
+V
REF
[(2
·
8193/16384) - 1]
+V
REF
[(2
·
8192/16384) - 1]
+V
REF
[(2
·
16383/16384) - 1]
ANALOG OUTPUT
01 1111 1111 1111
00 0000 0000 0001
00 0000 0000 0000
+V
REF
[(2
·
8191/16384) - 1]
+V
REF
[(2
·
1/16384) - 1]
-V
REF
相關(guān)PDF資料
PDF描述
MAX5171AEEE Low-Power, Serial, 14-Bit DACs with Force/Sense Voltage Output
MAX5171BEEE Low-Power, Serial, 14-Bit DACs with Force/Sense Voltage Output
MAX5183BEEI Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs
MAX5180BEEI Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs
MAX5180 Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5171AEEE 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5171AEEE+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5171AEEE+T 功能描述:數(shù)模轉(zhuǎn)換器- DAC 14-Bit Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5171AEEE-T 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5171BEEE 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
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