参数资料
型号: MAX522EPA+
厂商: Maxim Integrated Products
文件页数: 11/12页
文件大小: 0K
描述: IC DAC 8BIT DUAL SERIAL 8-DIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
设置时间: 70µs
位数: 8
数据接口: 串行
转换器数目: 2
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
输出数目和类型: 2 电压,单极
采样率(每秒): *
MAX522
Dual, 8-Bit, Voltage-Output
Serial DAC in 8-Pin SO Package
8
_______________________________________________________________________________________
Figure 1. DAC Simplified Circuit Diagram
2R
RR
R
REF
GND
OUT
SHOWN FOR ALL 1s ON DAC
Table 1. Input Shift Register
**Clocked in last.
**Clocked in first.
Uncommitted Bit 1
UB1**
Uncommitted Bit 2
UB2
Uncommitted Bit 3
UB3
Shut Down DAC B, Active High
SB
Shut Down DAC A, Active High
SA
Uncommitted Bit 4
UB4
Load Reg DAC B, Active High
LB
Load Reg DAC A, Active High
LA
DAC Data Bit 7 (MSB)
B7
DAC Data Bit 6
B6
DAC Data Bit 5
B5
DAC Data Bit 4
B4
DAC Data Bit 3
B3
DAC Data Bit 2
B2
DAC Data Bit 1
B1
DAC Data Bit 0 (LSB)
B0*
DATA
BITS
CONTROL
BITS
Serial Interface
An active-low chip select (
C
S
) enables the shift register
to receive data from the serial data input. Data is
clocked into the shift register on every rising edge of
the serial clock signal (SCLK). The clock frequency can
be as high as 5MHz.
Data is sent MSB first and can be transmitted in one 16-
bit word. The write cycle can be segmented when
C
S
is
kept active (low) to allow, for example, two 8-bit-wide
transfers. After clocking all 16 bits into the input shift
register, the rising edge of
C
S
updates the DAC outputs
and the shutdown status. Because of their single
buffered structure, DACs cannot be simultaneously
updated to different digital values.
Serial-Input Data Format and Control Codes
Table 2 lists the serial-input data format. The 16-bit
input word consists of an 8-bit control byte and an 8-bit
data byte. The 8-bit control byte is not decoded inter-
nally. Every control bit performs one function. Data is
clocked in starting with UB1 (Uncommitted Bit), fol-
lowed by the remaining control bits and the data byte.
The LSB of the data byte (B0) is the last bit clocked into
the shift register (Figure 2).
Table 3 is an example of a 16-bit input word. It per-
forms the following functions:
80hex (128 decimal) loaded into DAC registers
A and B.
DAC A and DAC B are active.
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相关代理商/技术参数
参数描述
MAX522EPA+ 功能描述:数模转换器- DAC 8-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
MAX522ESA 功能描述:数模转换器- DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
MAX522ESA+ 功能描述:数模转换器- DAC 8-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
MAX522ESA+T 功能描述:数模转换器- DAC 8-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube
MAX522ESA-T 功能描述:数模转换器- DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube