參數(shù)資料
Detailed Description
The MAX5232/MAX5233 10-bit, voltage-output DACs
are easily configured with a 3-wire SPI-, QSPI-,
MICROWIRE-compatible serial interface. The devices
include a 16-bit data-in/data-out shift register and have
an input consisting of an input register and a DAC reg-
ister. In addition, these devices employ precision
trimmed internal resistors to produce a gain of
1.6384V/V, maximizing the output voltage swing, and a
programmable-shutdown output impedance of 1k
or
200k
The full-scale output voltage is 4.092V for the
MAX5233 and 2.046V for the MAX5232. These devices
produce a weighted output voltage proportional to the
digital input code with an inverted rail-to-rail ladder net-
work (Figure 3).
Internal Reference
The MAX5232/MAX5233 use an on-board precision
bandgap reference to generate an output voltage of
1.234V (MAX5232) or 2.465V (MAX5233). With a low
temperature coefficient of only 10ppm/°C, REF can
source up to 100A and is stable for capacitive loads
less than 200pF.
Output Amplifiers
The output amplifiers have internal resistors that pro-
vide for a gain of 1.6384V/V when OS_ is connected to
AGND. The output amplifiers have a typical slew rate of
0.6V/s and settle to 1/2LSB within 10s with a load of
5k
in parallel with 100pF. Use the serial interface to
set the shutdown output impedance of the amplifiers to
1k
or 200k.
OS_ can be used to produce an offset voltage at the
output. For instance, to achieve a 1V offset, apply -1V
to OS_ to produce an output range from 1V to (1V +
VFS/VREF). Note that the DAC’s output range is still lim-
ited by the maximum output voltage specification.
MAX5232/MAX5233
3V/5V, 10-Bit, Serial Voltage-Output Dual DACs
with Internal Reference
______________________________________________________________________________________
11
CS
SCLK
DIN
DOUT
tCSW
tCS1
tCSH
tCSS
tCSO
tD02
tCH
tCL
tCP
tD01
tDS
tDH
tLDL
LDAC
tCSLD
Figure 2. Detailed Serial Interface Timing
OUT_
OS_
SHOWN FOR ALL ONES ON DAC
D9
D8
D7
D0
2R
121k
77.25k
1k
2R
RR
R
REF
AGND
Figure 3. Simplified DAC Circuit Diagram
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5233EEE+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch 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
MAX5233EEE+T 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch 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
MAX5233EEE-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
MAX5234AEUB 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
MAX5234AEUB+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 2Ch 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
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