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参数资料
| 型号： | MAX5322EAI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/18页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT DUAL 10V SER 28SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 46 |
| 设置时间： | 10µs |
| 位数： | 12 |
| 数据接口： | 串行 |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字，双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 管件 |
| 输出数目和类型： | 2 电压，单极；2 电压，双极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 1397 (CN2011-ZH PDF) |
Detailed Description
The MAX5322 dual, 12-bit DAC operates from either
single or dual analog supplies. Dual ±12V to ±15V
power supplies provide bipolar ±5V to ±10V outputs, or
unipolar 0V to 10V outputs. Single 12V to 15V analog
power supplies only provide unipolar 0 to 10V outputs.
The reference inputs accept voltages from 2V to 5.25V.
The DAC features INL and DNL less than ±1 LSB (max),
a fast 10s settling time, and a hardware shutdown
mode that reduces current consumption to 2.8A. The
device features a 10MHz SPI-/QSPI-/MICROWIRE-com-
patible serial interface that operates with 3V or 5V logic,
an asynchronous load input, and a serial-data output.
The device offers a CLR that sets the DAC outputs to 0V.
Figure 1 shows the functional diagram of the MAX5322.
Serial Interface
An SPI-/QSPI-/MICROWIRE-compatible serial interface
allows complete control of the DAC through a 16-bit
control word. The first 4 bits form the control bits that
determine register loading and software shutdown
functions. The last 12 bits form the DAC data. The 16-
bit word is entered MSB first.
Table 1 shows the serial-data control-word format.
Table 2 shows the interface commands. The MAX5322
can be programmed while in shutdown.
The serial interface contains five registers: a 16-bit shift
register, two 12-bit input registers, and two 12-bit DAC
registers (Figure 1). The shift register accepts data
from the serial interface. The input registers act as
holding registers for data going to the DAC registers
MAX5322
±10V, Dual, 12-Bit, Serial, Voltage-Output DAC
______________________________________________________________________________________
13
CONTROL BITS
DATA BITS
MSB
LSB
C3
C2
C1
C0
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Table 1. Control-Word Format
16-BIT SERIAL WORD
CONTROL BITS
DATA BITS
C3
C2
C1
C0
D11–D0
FUNCTION
0
XXXXXXXXXXXX
No operation (NOP).
0
1
12-bit DAC data
Load both DAC registers and both input registers from the shift register.
(Start both DACs with new data.)
0
1
0
12-bit DAC data
Load input register A from the shift register; DAC registers are unchanged.
0
1
12-bit DAC data
Load input register B from the shift register; DAC registers are unchanged.
0
1
0
12-bit DAC data
Load DAC register A and input register A from the shift register.
0
1
0
1
12-bit DAC data
Load DAC register B and input register B from the shift register.
0
1
0
XXXXXXXXXXXX
Update DAC register A from input register A (no data sent).
0
1
XXXXXXXXXXXX
Update DAC register B from input register B (no data sent).
1
0
XXXXXXXXXXXX
Shut down DAC A (provided
SHDN = 1).
1
0
1
XXXXXXXXXXXX
Shut down DAC B (provided
SHDN = 1).
1
0
1
0
XXXXXXXXXXXX
Update both DAC registers from their respective input registers.
(Start both DACs with data previously stored in the input register.)
1
0
1
XXXXXXXXXXXX
Shut down both DACs (provided
SHDN = 1).
1
0
XXXXXXXXXXXX
Power up DAC A (no change to any registers).
1
0
1
XXXXXXXXXXXX
Power up DAC B (no change to any registers).
1
0
XXXXXXXXXXXX
Power up both DACs (no change to any registers).
1
XXXXXXXXXXXX
Not used.
Table 2. Serial-Interface Programming Commands
X = Don’t care.
Note: The DACs can be programmed in shutdown mode.
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相关代理商/技术参数 |
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|---|---|
| MAX5322EAI+ | 功能描述:数模转换器- DAC 12-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 |
| MAX5322EAI+T | 功能描述:数模转换器- DAC 12-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 |
| MAX5322EAI-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 |
| MAX532ACPE | 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 |
| MAX532ACPE+ | 功能描述:数模转换器- DAC 12-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 |
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