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参数资料
| 型号： | MAX5138EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX5138 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| DAC 的数量： | 1 |
| 位数： | 16 |
| 数据接口： | 串行 |
| 设置时间： | 5µs |
| DAC 型： | 电压 |
| 工作温度： | -40°C ~ 105°C |
| 已供物品： | 板，缆线，CD |
| 已用 IC / 零件： | MAX5138 |
AVDD as Reference
Connect AVDD to REFI to use AVDD as the reference
voltage. Leave REFO unconnected.
Serial Interface
The MAX5138/MAX5139 3-wire serial interface is com-
patible with MICROWIRE, SPI, QSPI, and DSPs (Figures
2, 3). The interface provides three inputs, SCLK, CS,
and DIN and one output, READY. Use READY to verify
communication or to daisy-chain multiple devices (see
the READY section). READY is capable of driving a
20pF load with a 30ns (max) delay from the falling edge
of SCLK. The chip-select input (CS) frames the serial
data loading at DIN. Following a chip-select input’s
high-to-low transition, the data is shifted synchronously
and latched into the input register on each falling edge
of the serial-clock input (SCLK). Each serial word is 24
bits. The first 8 bits are the control word followed by 16
data bits (MSB first), as shown in Table 1. The serial
input register transfers its contents to the input registers
after loading 24 bits of data. To initiate a new data
transfer, drive CS high and keep CS high for a minimum
of 33ns before the next write sequence. The SCLK can
be either high or low between CS write pulses. Figure 1
shows the timing diagram for the complete 3-wire serial-
interface transmission.
The MAX5138/MAX5139 digital input is double buffered.
Depending on the command issued through the serial
interface, the input register can be loaded without affect-
ing the DAC register using the write command. To update
the DAC register, either pulse the LDAC input low, or use
the software LDAC command. Use the writethrough com-
mands (see Table 1) to update the DAC output immedi-
ately after the data is received. Only use the writethrough
command to update the DAC output immediately.
Low-Power, Single, 16-/12-Bit,
Buffered Voltage-Output DACs
10
Maxim Integrated
MAX5138/MAX5139
24-BIT WORD
CONTROL BITS
DATA BITS
MSB
LSB
C7 C6 C5 C4 C3 C2 C1 C0 D15 D14 D13 D12 D11 D10 D9
D8
D7
D6–D0
DESC
FUNCTION
0
X
NOP
No operation.
0
1
X
DAC
X
LDAC
Set DAC = 1 to move
contents of input to DAC
register. Setting DAC = 0
results in no operation.
0
1
0
X
CLR
Software clear.
0
1
X
DAC READY_EN
X
Power
Control
Set DAC = 1 to power
down DAC. Set
READY_EN = 1 to
enable
READY. Setting
DAC = 0 results in no
operation.
0
1
0
1
0
LIN
0
Linearity Optimize DAC linearity.
0
1
X
X DAC D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
Write
Write to selected input
registers (DAC output
not affected). Setting
DAC = 0 results in no
operation.
0
1
X
X DAC D15 D14 D13 D12 D11 D10 D9
D8
D7
D6
Write-
through
Write to selected input
and DAC register,
DAC output updated
(writethrough). Setting
DAC = 0 results in no
operation.
0
1
0
X
NOP
No operation.
Table 1. Operating Mode Truth Table
*
For the MAX5139, D3–D0 are X = don’t-care bits.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5138EVKIT+ | 功能描述:数据转换 IC 开发工具 MAX5138/39 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX5139 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs |
| MAX5139GTE+ | 功能描述:数模转换器- DAC 12-Bit 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 |
| MAX5139GTE+T | 功能描述:数模转换器- DAC 12-Bit 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 |
| MAX513C/D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, Triple, 8-Bit Voltage-Output DACs with Serial Interface |
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