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参数资料
| 型号： | MAX5851ETL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/18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： | 2,500 |
| 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： | 带卷 (TR) |
| 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
______________________________________________________________________________________
11
Detailed Description
The MAX5851 dual, high-speed, 8-bit, current-output
DAC provides superior performance in communication
systems requiring low-distortion analog-signal recon-
struction. The MAX5851 combines two DACs and an on-
chip 1.24V reference (Figure 2). The current outputs of
the DACs can be configured for differential or single-
ended operation. The full-scale output current range is
adjustable from 2mA to 20mA to optimize power dissi-
pation and gain control.
The MAX5851 accepts an input data and a DAC con-
version rate of 80MHz. The inputs are latched on the
rising edge of the clock whereas the output latches on
the following rising edge.
The MAX5851 features three modes of operation: normal,
standby, and power-down (Table 2). These modes allow
efficient power management. In power-down, the
MAX5851 consumes only 1A of supply current. Wake-
up time from standby mode to normal DAC operation
is 3s.
Programming the DAC
An 8-bit control word routed through channel A’s data
port programs the gain matching, reference, and the
operational mode of the MAX5851. The control word is
latched on the rising edge of CW. CW is independent
of the DAC clock. The DAC clock can always remain
running when the control word is written to the DAC.
Table 1 and Table 2 represent the control word format
and function.
The gain on channel A can be adjusted to achieve gain
matching between two channels in a user’s system.
The gain on channel A can be adjusted from -0.4dB to
+0.35dB in steps of 0.05dB by using bits G3 to G0 (see
Table 3).
Pin Description (continued)
PIN
NAME
FUNCTION
32
REFR
Full-Scale Current Adjustment. To set the output full-scale current, connect an external resistor RSET
between REFR and AGND. The output full-scale current is equal to 32 x VREFO/RSET.
33, 39
AVDD
Analog Power Input. See the Power Supplies, Bypassing, Decoupling, and Layout section for more details.
34
OUTNB
Channel B Negative Analog Current Output
35
OUTPB
Channel B Positive Analog Current Output
36, 40
AGND
Analog Ground
37
OUTNA
Channel A Negative Analog Current Output
38
OUTPA
Channel A Positive Analog Current Output
—EP
Exposed Paddle. Connect EP to the common point of all ground planes.
8-BIT
DACA
CHANNEL A
GAIN
CONTROL
DA0/G0
DA1/G1
DA2/G2
DA3/G3
DA4/REN
DA5/IDE
DA6/DACEN
DA7/PD
DACA
INPUT
REGISTER
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DACB
INPUT
REGISTER
CONTROL
WORD
CW
G0
G1
G2
OPERATING
MODE
CONTROLLER
DACEN
PD
G3
INPUT DATA
INTERLEAVER
8-BIT
DACB
CLOCK
DISTRIBUTION
1.24V REFERENCE
AND CONTROL
AMPLIFIER
CLOCK
POWER
MANAGEMENT
DCE
CLKXP
CLKXN
CLK
DIGITAL
POWER
MANAGEMENT
ANALOG
POWER
MANAGEMENT
MAX5851
DVDD
DGND
CVDD
CGND
IDE
REN
REFR
REFO
RSET
AGND
OUTNB
OUTPB
OUTNA
OUTPA
AGND
AVDD
Figure 2. Simplified Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| MAX5852ETL+T | 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 |
| MAX5852ETL-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 |
| MAX5852EVKIT | 功能描述:数模转换器- DAC Evaluation Kit for the MAX5851 MAX5852 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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