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参数资料
| 型号： | MAX5101AEUE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/8页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT TRPL R-R 16-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 96 |
| 设置时间： | 6µs |
| 位数： | 8 |
| 数据接口： | 并联 |
| 转换器数目： | 3 |
| 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： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
| 输出数目和类型： | 3 电压，单极 |
| 采样率（每秒）： | * |
| 产品目录页面： | 1397 (CN2011-ZH PDF) |
MAX5101
+2.7V to +5.5V, Low-Power, Triple, Parallel
8-Bit DAC with Rail-to-Rail Voltage Outputs
6
_______________________________________________________________________________________
Detailed Description
Digital-to-Analog Section
The MAX5101 uses a matrix decoding architecture for the
digital-to-analog converters (DACs). The internal refer-
ence voltage is connected to VDD and divided down by a
resistor string placed in a matrix fashion. Row and col-
umn decoders select the appropriate tab from the resistor
string to provide the needed analog voltages. The resistor
network converts the 8-bit digital input into an equivalent
analog output voltage in proportion to the supply voltage
(VDD). The resistor string presents a code-independent
input impedance to the supply and guarantees a monoto-
nic output.
The voltages are buffered by rail-to-rail op amps con-
nected in a follower configuration to provide a rail-to-rail
output (see Functional Diagram).
Output Buffer Amplifiers
The DAC outputs are internally buffered by a precision
amplifier with a typical slew rate of 0.6V/s. The typical
settling time to ±1/2LSB at the output is 6s when
loaded with 10k
in parallel with 100pF.
DAC Reference Voltage
The MAX5101’s reference is internally tied to VDD. The
output voltage (VOUT) for any DAC is represented by a
digitally programmable voltage source as follows:
VOUT = (NB VDD) / 256
where NB is the numeric value of the DAC binary input
code.
Digital Inputs and Interface Logic
In the MAX5101, address lines A0 and A1 select the DAC
that receives data from D0–D7, as shown in Table 1.
When WR is low, the addressed DAC’s input latch is
transparent. Data is latched when WR is high. The DAC
outputs (OUTA, OUTB) represent the data held in the
three 8-bit input latches. To avoid output glitches in the
MAX5101, ensure that data is valid before WR goes low.
Low-Power Shutdown Mode
The MAX5101 features a software shutdown mode. A
write performed to address A1 = H and A0 = H causes
the device to shut down. A subsequent write to any of
the other three addresses disables shutdown and turns
the analog circuitry on. As the MAX5101 comes out of
shutdown, all registers retain their digital values prior to
shutdown. However, when the device powers up (i.e.,
VDD ramps up), all latches are internally preset with
code 00 hex. In shutdown, the output amplifiers enter a
high-impedance state. When bringing the device out of
shutdown, allow 13s for the output to stabilize.
Power-Supply Bypassing and
Ground Management
Digital or AC transient signals on GND can create noise
at the analog output. Return GND to the highest-quality
ground available. Bypass VDD with a 0.1F capacitor,
located as close to VDD and GND as possible.
Careful PC board ground layout minimizes crosstalk
between the DAC outputs and digital inputs.
NAME
FUNCTION
1
OUTB
DAC B Voltage Output
2
OUTA
DAC A Voltage Output
PIN
3
VDD
Positive Supply Voltage. Bypass VDD to GND using a 0.1F capacitor.
4
WR
Write Input (active low). Use WR to load data into the DAC input latch selected by A0 and A1.
15
GND
Ground
14
A0
DAC Address Select Bit (LSB)
13
A1
DAC Address Select Bit (MSB)
5–12
D7–D0
Data Inputs 7–0
16
OUTC
DAC C Voltage Output
Pin Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5101AEUE+ | 功能描述:数模转换器- DAC 8-Bit 3Ch 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 |
| MAX5101AEUE+T | 功能描述:数模转换器- DAC 8-Bit 3Ch 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 |
| MAX5101AEUE-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 |
| MAX5101BEUE | 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 |
| MAX5101BEUE+ | 功能描述:数模转换器- DAC 8-Bit 3Ch 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 |
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