参数资料
型号: MAX5821MEUA+T
厂商: Maxim Integrated Products
文件页数: 1/13页
文件大小: 0K
描述: IC DAC 10BIT DL 2WIRE SER 8-UMAX
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: 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: 8-TSSOP,8-MSOP(0.118",3.00mm 宽)
供应商设备封装: 8-uMAX
包装: 带卷 (TR)
输出数目和类型: 2 电压,单极
采样率(每秒): *
General Description
The MAX5821 is a dual, 10-bit voltage-output, digital-to-
analog converter (DAC) with an I2C-compatible,
2-wire interface that operates at clock rates up to 400kHz.
The device operates from a single 2.7V to 5.5V supply
115A at VDD = 3.6V. A power-down mode decreases
current consumption to less than 1A. The MAX5821 fea-
tures three software-selectable power-down output
impedances: 100k
Ω, 1kΩ, and high impedance. Other
features include internal precision rail-to-rail output
buffers and a power-on reset (POR) circuit that powers up
the DAC in the 100k
Ω power-down mode.
The MAX5821 features a double-buffered I2C-compatible
serial interface that allows multiple devices to share a sin-
gle bus. All logic inputs are CMOS-logic compatible and
buffered with Schmitt triggers, allowing direct interfacing
to optocoupled and transformer-isolated interfaces. The
MAX5821 minimizes digital noise feedthrough by discon-
necting the clock (SCL) signal from the rest of the device
when an address mismatch is detected.
The MAX5821 is specified over the extended temperature
range of -40°C to +85°C and is available in a miniature 8-
pin MAX package. Refer to the MAX5822 data sheet
for the 12-bit version and the MAX5820 data sheet for the
8-bit version.
Applications
Digital Gain and Offset Adjustments
Programmable Voltage and Current Sources
Programmable Attenuation
VCO/Varactor Diode Control
Low-Cost Instrumentation
Battery-Operated Instrumentation
Features
Ultra-Low Supply Current
115A at VDD = 3.6V
135A at VDD = 5.5V
300nA Low-Power Power-Down Mode
Single 2.7V to 5.5V Supply Voltage
Fast 400kHz I2C-Compatible 2-Wire
Serial Interface
Schmitt-Trigger Inputs for Direct Interfacing
to Optocouplers
Rail-to-Rail Output Buffer Amplifiers
Three Software-Selectable Power-Down Output
Impedances
100k
Ω, 1kΩ, and High Impedance
Read-Back Mode for Bus and Data Checking
Power-On Reset to Zero
8-Pin MAX Package
MAX5821
Dual, 10-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
________________________________________________________________ Maxim Integrated Products
1
REF
SDA
SCL
1
2
8
7
OUTB
OUTA
GND
ADD
VDD
μMAX
TOP VIEW
3
4
6
5
MAX5821
Pin Configuration
Ordering Information
RP
VDD
μC
SDA
SCL
SDA
REF
SCL
VDD
RS
VDD
OUTA
OUTB
OUTA
OUTB
MAX5821
RS
Typical Operating Circuit
19-2316; Rev 1; 2/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP
RANGE
PIN-
PACKAGE
ADDRESS
MAX5821LEUA
-40
oC to +85oC
8 MAX
0111 00X
MAX5821MEUA
-40
oC to +85oC
8 MAX
1011 00X
Max is a registered trademark of Maxim Integrated Products, Inc.
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