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参数资料
| 型号： | MAX5811NEUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/13页 |
| 文件大小： | 0K |
| 描述： | IC DAC SERIAL 10BIT 1CH SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 设置时间： | 4µs |
| 位数： | 10 |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 功率耗散（最大）： | 727mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 1 电压，单极 |
| 采样率（每秒）： | * |
MAX5811
10-Bit Low Power 2-Wire Interface Serial,
Voltage-Output DAC
_______________________________________________________________________________________
7
Detailed Description
The MAX5811 is a 10-bit, voltage-output DAC with an
I2C/SMBus-compatible 2-wire interface. The device
consists of a serial interface, power-down circuitry,
input and DAC registers, a 10-bit resistor string DAC,
unity-gain output buffer, and output resistor network.
The serial interface decodes the address and control
bits, routing the data to either the input or DAC register.
Data can be directly written to the DAC register imme-
diately updating the device output, or can be written to
the input register without changing the DAC output.
Both registers retain data as long as the device is pow-
ered.
DAC Operation
The MAX5811 uses a segmented resistor string DAC
architecture, which saves power in the overall system
and guarantees output monotonicity. The MAX5811’s
input coding is straight binary, with the output voltage
given by the following equation:
where N = 10 (bits), and D = the decimal value of the
input code (0 to 1023).
Output Buffer
The MAX5811 analog output is buffered by a precision,
unity-gain follower that slews at about 0.5V/s. The
buffer output swings rail-to-rail, and is capable of dri-
ving 5k
in parallel with 200pF. The output settles to
±0.5LSB within 4s.
Power-On Reset
The MAX5811 features an internal POR circuit that ini-
tializes the device upon power-up. The DAC registers
are set to zero scale and the device is powered-down
with the output buffer disabled and the output pulled to
GND through the 100k
termination resistor. Following
power-up, a wake-up command must be initiated
before any conversions are performed.
Power-Down Modes
The MAX5811 has three software-controlled low-power
power-down modes. All three modes disable the output
buffer and disconnect the DAC resistor string from VDD,
reducing supply current draw to 300nA. In power-down
mode 0, the device output is high impedance. In
power-down mode 1, the device output is internally
pulled to GND by a 1k
termination resistor. In power-
down mode 2, the device output is internally pulled to
GND by a 100k
termination resistor. Table 1 shows
the power-down mode command words.
Upon wake-up, the DAC output is restored to its previ-
ous value. Data is retained in the input and DAC regis-
ters during power-down mode.
Digital Interface
The MAX5811 features an I2C/SMBus-compatible 2-
wire interface consisting of a serial data line (SDA) and
V
VD
OUT
REF
N
=
×()
2
Pin Description
PIN
NAME
FUNCTION
1VDD
Power Supply and DAC Reference Input
2
GND
Ground
3
SDA
Bidirectional Serial Data I/O
4
SCL
Serial Clock Line
5
ADD
Address Select. A logic high sets the address LSB to 1, a logic low sets the address LSB to 0.
6
OUT
Analog Output
Table 1. Power-Down Command Bits
POWER-DOWN
COMMAND BITS
PD1
PD0
MODE/FUNCTION
00
Power-up device. DAC output restored to previous value.
01
Power-down mode 0. Power-down device with output floating.
10
Power-down mode 1. Power-down device with output terminated with 1k
to GND.
11
Power-down mode 2. Power-down device with output terminated with 100k
to GND.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5811PEUT | 制造商:Maxim Integrated Products 功能描述:10-BIT LOW-POWER 2-WIRE SERIAL V - Rail/Tube |
| MAX5811PEUT+T | 功能描述:数模转换器- DAC 10-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 |
| MAX5811PEUT-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 |
| MAX5812LEUT | 制造商:Maxim Integrated Products 功能描述:12-BIT LOW-POWER 2-WIRE SERIAL V - Rail/Tube |
| MAX5812LEUT+ | 制造商:Maxim Integrated Products 功能描述:12-BIT LOW-POWER, 2-WIRE, SERIAL VOLTAGE-OUTPUT DAC - Rail/Tube |
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