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参数资料
| 型号： | MAX5851ETL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT DUAL 80MSPS 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 设置时间： | 12ns |
| 位数： | 8 |
| 数据接口： | 并联 |
| 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： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（6x6） |
| 包装： | 管件 |
| 输出数目和类型： | 4 电流，单极 |
| 采样率（每秒）： | 80M |
MAX5851
Dual, 8-Bit, 80Msps, Current-Output DAC
12
______________________________________________________________________________________
Device Power-Up and
States of Operation
At power-up, the MAX5851’s default configuration is inter-
nal reference, noninterleaved input mode with a gain of
0dB and a fully operational converter. In shutdown, the
MAX5851 consumes only 1A of supply current, and in
standby the current consumption is 3.1mA. Wake-up time
from standby mode to normal operation is 3s.
Clock Modes
The MAX5851 allows both single-ended CMOS and dif-
ferential clock mode operation, and supports update
rates of up to 80Msps. These modes are selected
through an active-low control line called DCE. In single-
ended clock mode (DCE = 1), the CLK pin functions as
an input, which accepts a user-provided single-ended
clock signal. Data is written to the converter on the rising
edge of the clock. The DAC outputs (previous data) are
updated simultaneously on the same edge.
If the DCE pin is pulled low, the MAX5851 operates in
differential clock mode. In this mode, the clock signal
has to be applied to differential clock input pins
CLKXP/CLKXN. The differential input accepts an input
range of ≥0.5VP-P and a common-mode range of 1V to
(CVDD - 0.5V), making the part ideal for low-input ampli-
tude clock drives. CLKXP/CLKXN also help to minimize
the jitter, and allow the user to connect a crystal oscilla-
tor directly to the MAX5851.
The CLK pin now becomes an output, and provides a sin-
gle-ended replica of the differential clock signal, which
may be used to synchronize the input data. Data is writ-
ten to the device on the rising edge of the CLK signal.
CONTROL WORD
FUNCTION
PD
Power-Down. The part enters power-down mode if PD = 1.
DACEN
DAC Enable. When DACEN = 0 and PD = 0, the part enters standby mode.
IDE
Interleaved Data Mode. IDE = 1 enables the interleaved data mode. In this mode, digital data for both
channels is applied through channel A in a multiplexed fashion. Channel B data is written on the falling edge
of the clock signal and channel A data is written on the rising edge of the clock signal.
REN
Reference Enable Bit. REN = 0 activates the internal reference. REN = 1 disables the internal reference and
requires the user to apply an external reference between 0.1V to 1.32V.
G3
Bit 3 (MSB) of Gain Adjust Word
G2
Bit 2 of Gain Adjust Word
G1
Bit 1 of Gain Adjust Word
G0
Bit 0 (LSB) of Gain Adjust Word
Table 1. Control Word Format and Function
GAIN ADJUSTMENT ON
CHANNEL A (dB)
G3
G2
G1
G0
+0.4
0000
0
1000
-0.35
1111
Table 3. Gain Difference Setting
X = Don’t care.
MSB
LSB
PD
DACEN
IDE
REN
G3
G2
G1
G0
Table 2. Configuration Modes
MODE
PD
DACEN
IDE
REN
Normal operation;
noninterleaved inputs;
internal reference active
01
0
Normal operation;
noninterleaved inputs;
internal reference disabled
01
0
1
Normal operation;
interleaved inputs;
internal reference disabled
01
1
Standby
0
X
Power-down
1
X
Power-up
0
1
X
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5851ETL+ | 功能描述:数模转换器- DAC 8-Bit 2Ch 80Msps 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 |
| MAX5851ETL+T | 功能描述:数模转换器- DAC 8-Bit 2Ch 80Msps 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 |
| MAX5851ETL-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 |
| MAX5852ETL | 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 |
| MAX5852ETL+ | 功能描述:数模转换器- DAC 8-Bit 2Ch 165Msps 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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