參數(shù)資料
型號(hào)： MAX5821LEUA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： DAC
英文描述： Dual, 10-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
中文描述： SERIAL INPUT LOADING, 4 us SETTLING TIME, 10-BIT DAC, PDSO8
封裝： MINIATURE, MICRO MAX PACKAGE-8
文件頁(yè)數(shù)： 1/13頁(yè)
文件大?。?/td> 419K
代理商： MAX5821LEUA
General Description
The MAX5821 is a dual, 10-bit voltage-output, digital-to-
analog converter (DAC) with an I
2
C
-compatible,
2-wire interface that operates at clock rates up to
400kHz. The device operates from a single 2.7V to 5.5V
supply 115μA at V
DD
= 3.6V. A power-down mode
decreases current consumption to less than 1μA. The
MAX5821 features three software-selectable power-
down output impedances: 100k
, 1k
, 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
power-
down mode.
The MAX5821 features a double-buffered I
2
C-compati-
ble serial interface that allows multiple devices to share
a single bus. All logic inputs are CMOS-logic compati-
ble and buffered with Schmitt triggers, allowing direct
interfacing to optocoupled and transformer-isolated
interfaces. The MAX5821 minimizes digital noise
feedthrough by disconnecting the clock (SCL) signal
from the rest of the device when an address mismatch
is detected.
The MAX5821 is specified over the extended tempera-
ture range of -40°C to +85°C and is available in a
miniature 8-pin μMAX package. Refer to the MAX5822
data sheet for the 12-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
Pin Configuration
Features
o
Ultra-Low Supply Current
115μA at V
DD
= 3.6V
135μA at V
DD
= 5.5V
o
300nA Low-Power Power-Down Mode
o
Single 2.7V to 5.5V Supply Voltage
o
Fast 400kHz I
2
C-Compatible 2-Wire
Serial Interface
o
Schmitt-Trigger Inputs for Direct Interfacing
to Optocouplers
o
Rail-to-Rail Output Buffer Amplifiers
o
Three Software-Selectable Power-Down Output
Impedances
100k
, 1k
, and High Impedance
o
Read-Back Mode for Bus and Data Checking
o
Power-On Reset to Zero
o
8-Pin μMAX Package
M
Dual, 10-Bit, Low-Power, 2-Wire, Serial
Voltage-Output DAC
________________________________________________________________
Maxim Integrated Products
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.
1
REF
SDA
SCL
1
2
8
7
OUTB
OUTA
GND
ADD
V
DD
μ
MAX
TOP VIEW
3
4
6
5
MAX5821
Ordering Information
R
P
R
P
V
DD
μ
C
SDA
SCL
SDA
SDA
REF
REF
REF
SCL
SCL
V
DD
V
DD
R
S
R
S
V
DD
OUTA
OUTB
OUTA
OUTB
MAX5821
MAX5821
R
S
R
S
Typical Operating Circuit
19-2316; Rev 0; 1/02
PART
TEMP
RANGE
PIN-
PACKAGE
ADDRESS
MAX5821LEUA
MAX5821MEUA
-40
o
C to +85
o
C
-40
o
C to +85
o
C
8 μMAX
8 μMAX
0111 00X
1011 00X
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
I
2
C is a trademark of Philips Corp.
230
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX5821LEUA+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5821LEUA+T 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5821LEUA-T 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5821MEUA 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
MAX5821MEUA+ 功能描述:數(shù)模轉(zhuǎn)換器- DAC 10-Bit 2Ch Precision DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube
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