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参数资料
| 型号： | MAX5109EEE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/17页 |
| 文件大小： | 0K |
| 描述： | IC DAC 8BIT DUAL NV 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 设置时间： | 6µs |
| 位数： | 8 |
| 数据接口： | 串行 |
| 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： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 2 电压，单极 |
| 采样率（每秒）： | * |
Detailed Description
The MAX5109 8-bit DACs feature internal, nonvolatile
registers that store the DAC states for initialization dur-
ing power-up. This device consists of resistor-string
DACs, rail-to-rail output buffers, a shift register, power-
on reset (POR) circuitry, and volatile and nonvolatile
memory registers (Figure 1). The shift register decodes
the control and address bits, routing the data to the
proper registers. Writing data to a selected volatile reg-
ister immediately updates the DAC outputs.
The volatile registers retain data as long as the device
is powered. Removing power clears the volatile regis-
ters. The nonvolatile registers retain data even after
power is removed. On startup, when power is first
applied, data from the nonvolatile registers is trans-
ferred to the volatile registers to automatically initialize
the device. Read data from the nonvolatile or volatile
registers using the 2-wire serial interface.
DAC Operation
The MAX5109 uses a DAC matrix decoding architec-
ture that saves power. A resistor string divides the dif-
ference between the external reference voltages,
VREFH_ and VREFL_. Row and column decoders select
the appropriate tap from the resistor string, providing
the equivalent analog voltage. The resistor string pre-
sents a code-independent input impedance to the ref-
erence and guarantees a monotonic output. Figure 2
shows a simplified diagram of one DAC.
Output Buffer Amplifiers
The MAX5109 analog outputs are internally buffered by
precision unity-gain amplifiers. The outputs swing from
GND to VDD with a VREFL_-to-VREFH_ output transition.
The amplifier outputs typically settle to ±0.5 LSB in 8s
when loaded with 5k
in parallel with 100pF.
MAX5109
Nonvolatile, Dual, 8-Bit DACs with 2-Wire Serial
Interface
_______________________________________________________________________________________
9
DAC0
NONVOLATILE
REGISTER
DAC1
NONVOLATILE
REGISTER
REFL0
OUT0
9
14
15
8
16
13
12
11
5
6
7
1
2
3
OUT1
SCL
GND
VDD
SDA
A3
A2
A1
2-WIRE
SERIAL
INTERFACE/
CONTROL
MUTE
REFH0
REFL1
REFH1
DAC0
VOLATILE
REGISTER
DAC1
VOLATILE
REGISTER
MAX5109
DAC0
DAC1
4
A0
POR
Figure 1. MAX5109 Functional Diagram
REFH_
REFL_
R1
R15
R16
R255
R0
D7
D6
D5
D4
DAC
MSB
DECODER
D3
D0
D2
D1
LSB DECODER
Figure 2. DAC Simplified Circuit Diagram
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| MAX510ACPE | 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 |
| MAX510ACPE+ | 功能描述:数模转换器- DAC 8-Bit 4Ch 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 |
| MAX510ACWE | 功能描述:数模转换器- DAC Integrated Circuits (ICs) 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 |
| MAX510ACWE+ | 功能描述:数模转换器- DAC 8-Bit 4Ch 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 |
| MAX510ACWE+T | 功能描述:数模转换器- DAC 8-Bit 4Ch 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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