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参数资料
| 型号： | MAX5180BEEI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/14页 |
| 文件大小： | 0K |
| 描述： | IC DAC 10BIT 40MHZ DUAL 28-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 设置时间： | 25µs |
| 位数： | 10 |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 28-QSOP |
| 包装： | 管件 |
| 输出数目和类型： | 4 电流，单极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 1397 (CN2011-ZH PDF) |
MAX5180/MAX5183
Dual, 10-Bit, 40MHz, Current/Voltage
Simultaneous-Output DACs
10
______________________________________________________________________________________
PD
(POWER-DOWN SELECT)
DACEN
(DAC ENABLE)
POWER-DOWN MODE
OUTPUT STATE
0
Standby
MAX5180
High-Z
MAX5183
AGND
0
1
Wake-Up
Last state prior to standby mode
1
X
Shutdown
MAX5180
High-Z
MAX5183
AGND
Table 1. Power-Down Mode Selection
X = Don’t care
External Reference
To disable the MAX5180/MAX5183’s internal reference,
connect REN to AVDD. A temperature-stable, external
reference may now be applied to drive the REFO pin to
set the full-scale output (Figure 3). Choose a reference
capable of supplying at least 150A to drive the bias
circuit that generates the cascode current for the cur-
rent array. For improved accuracy and drift perfor-
mance, choose a fixed output voltage reference such
as the 1.2V, 25ppm/°C MAX6520 bandgap reference.
Standby Mode
To enter the lower power standby mode, connect digital
inputs PD and DACEN to DGND. In standby, both the
reference and the control amplifier are active with the
current array inactive. To exit this condition, DACEN
must be pulled high with PD held at DGND. Both the
MAX5180 and MAX5183 typically require 50s to wake
up and allow both the outputs and the reference to settle.
Shutdown Mode
For lowest power consumption, the MAX5180/MAX5183
provide a power-down mode in which the reference,
control amplifier, and current array are inactive and the
DAC supply current is reduced to 1A. To enter this
mode, connect PD to DVDD. To return to active mode,
connect PD to DGND and DACEN to DVDD. Table 1
lists the power-down mode selection. About 50s are
required for the parts to leave shutdown mode and set-
tle to their outputs’ values prior to shutdown.
Timing Information
The MAX5180/MAX5183 dual DACs write to their out-
puts simultaneously (Figure 4). On the falling edge of
tDS1
tDS2
tCH
tCL
tCLK
tDH1
DAC 1 (N-1)
INPUT SAMPLE
N-1 FOR DAC 1
INPUT SAMPLE
N FOR DAC 2
UPDATES
DAC 1 AND
DAC 2 TO N-1
UPDATES
DAC 1 AND
DAC 2 TO N
UPDATES
DAC 1 AND
DAC 2 TO N+1
UPDATES
DAC 1 AND
DAC 2 TO N+2
PRELOADS
SAMPLE N
FOR DAC 2
PRELOADS
SAMPLE N+1
FOR DAC 2
PRELOADS
SAMPLE N+2
FOR DAC 2
INPUT SAMPLE
N FOR DAC 1
INPUT SAMPLE
N+1 FOR DAC 2
INPUT SAMPLE
N+1 FOR DAC 1
INPUT SAMPLE
N+2 FOR DAC 2
INPUT SAMPLE
N+2 FOR DAC 1
INPUT SAMPLE
N+3 FOR DAC 2
N-2
DAC 1
CLK
DAC 2
D0–D9
N-1
N
N+1
N+2
N-2
DAC 2 (N)
DAC 1 (N)
DAC 2 (N+1)
DAC 1 (N+1)
DAC 2 (N+2)
DAC 1 (N+2)
DAC 2 (N+3)
Figure 4. Timing Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5180BEEI+ | 功能描述:数模转换器- DAC 10-Bit 2Ch High Speed 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 |
| MAX5180BEEI+T | 功能描述:数模转换器- DAC 10-Bit 2Ch High Speed 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 |
| MAX5180BEEI-T | 功能描述:数模转换器- DAC 10-Bit 2Ch High Speed 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 |
| MAX5181 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:10-Bit, 40MHz, Current/Voltage-Output DACs |
| MAX5181_10 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:10-Bit, 40MHz, Current/Voltage-Output DACs |
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