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参数资料
| 型号： | MAX5873EGK+D |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT 200MSPS DUAL 68-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 30 |
| 设置时间： | 14ns |
| 位数： | 12 |
| 数据接口： | 并联 |
| 转换器数目： | 2 |
| 电压电源： | 模拟和数字 |
| 功率耗散（最大）： | 300mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 68-VFQFN 裸露焊盘 |
| 供应商设备封装： | 68-QFN 裸露焊盘（10x10） |
| 包装： | 管件 |
| 输出数目和类型： | 4 电流，单极 |
| 采样率（每秒）： | 200M |
| 产品目录页面： | 1398 (CN2011-ZH PDF) |
MAX5873
12-Bit, 200Msps, High-Dynamic-Performance,
Dual DAC with CMOS Inputs
______________________________________________________________________________________
11
CMOS-Compatible Digital Inputs
Input Data Format Select (TORB,
DORI)
The TORB input selects between two’s-complement or
binary digital input data. Set TORB to a CMOS-logic-
high level to indicate a two’s-complement input format.
Set TORB to a CMOS-logic-low level to indicate a bina-
ry input format.
The
DORI input selects between a dual-port (parallel) or
single-port (interleaved) DAC. Set
DORI high to configure
the MAX5873 as a dual-port DAC. Set
DORI low to con-
figure the MAX5873 as a single-port DAC. In dual-port
mode, connect SELIQ to ground.
CMOS DAC Inputs (A11/B11–A0/B0, XOR, SELIQ)
The MAX5873 latches input data on the rising edge of
the clock in a user-selectable two’s-complement or bina-
ry format. A logic-high voltage on TORB selects two’s-
complement and a logic-low selects offset binary format.
The MAX5873 includes a single-ended, CMOS-compati-
ble XOR input. Input data (all bits) are compared with the
bit applied to XOR through exclusive-OR gates. Pulling
XOR high inverts the input data. Pulling XOR low leaves
the input data noninverted. By applying a previously
encoded pseudo-random bit stream to the data input and
applying decoding to XOR, the digital input data can be
decorrelated from the DAC output, allowing for the trou-
bleshooting of possible spurious or harmonic distortion
degradation due to digital feedthrough on the printed
circuit board (PCB).
A11/B11–A0/B0, XOR, and SELIQ are latched on the ris-
ing edge of the clock. In single-port mode (
DORI pulled
low) a logic-high signal on SELIQ directs the B11–B0
data onto the I-DAC inputs. A logic-low signal at SELIQ
directs data to the Q-DAC inputs. In dual-port (parallel)
mode (
DORI pulled high), data on pins A11–A0 are
directed onto the Q-DAC inputs and B11–B0 are directed
onto the I-DAC inputs.
Power-Down Operation (PD)
The MAX5873 also features an active-high power-down
mode that reduces the DAC’s digital current consumption
from 21.5mA to less than 2A and the analog current
consumption from 76mA to less than 2A. Set PD high
to power down the MAX5873. Set PD low for normal
operation.
When powered down, the MAX5873 reduces the overall
power consumption to less than 14W. The MAX5873
requires 10ms to wake up from power-down and enter
a fully operational state. The PD integrated pulldown
resistor activates the MAX5873 if PD is left floating.
OUTIP
OUTIN
1.2V
REFERENCE
CURRENT-SOURCE
ARRAY DAC
REFIO
FSADJ
RSET
IREF
10k
DACREF
1F
IREF = VREFIO / RSET
Figure 2. Reference Architecture, Internal Reference
Configuration
IOUT
OUTIN OUTIP
CURRENT
SOURCES
CURRENT
SWITCHES
AVDD
Figure 3. Simplified Analog Output Structure
DIGITAL INPUT CODE
OFFSET BINARY
TWO’S
COMPLEMENT
OUT_P
OUT_N
0000 0000 0000
1000 0000 0000
0
IOUTFS
0111 1111 1111
0000 0000 0000
IOUTFS / 2 IOUTFS / 2
1111 1111 1111
0111 1111 1111
IOUTFS
0
Table 2. DAC Output Code Table
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5873EGK-TD | 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 |
| MAX5873EVKIT | 功能描述:数模转换器- DAC Evaluation Kit for the MAX5873 MAX5874 MAX5875 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 |
| MAX5874EGK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX5874EGK+D | 功能描述:数模转换器- DAC 14-Bit 2Ch 200Msps 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 |
| MAX5874EGK+TD | 功能描述:数模转换器- DAC 14-Bit 2Ch 200Msps 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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