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参数资料
| 型号： | 5962-8967901XX |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 1-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, CQCC44 |
| 封装： | CERAMIC, LCC-44 |
| 文件页数： | 1/13页 |
| 文件大小： | 403K |
| 代理商： | 5962-8967901XX |
General Description
The MAX5820 is a dual, 8-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 MAX5820 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 MAX5820 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
MAX5820 minimizes digital noise feedthrough by discon-
necting the clock (SCL) signal from the rest of the device
when an address mismatch is detected.
The MAX5820 is specified over the extended (-40°C to
+85°C) temperature range and is available in a small
8-pin MAX package. Refer to the MAX5822 data
sheet for the 12-bit version and to the MAX5821 data
sheet for a 10-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
Readback Mode for Bus and Data Checking
Power-On Reset to Zero
8-Pin MAX Package
MAX5820
Dual, 8-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
MAX5820
Pin Configuration
Ordering Information
RP
VDD
μC
SDA
SCL
SDA
REF
SCL
VDD
RS
VDD
OUTA
OUTB
OUTA
OUTB
MAX5820
RS
Typical Operating Circuit
19-3538; Rev 0; 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
MAX5820LEUA
-40°C to +85°C
8 MAX
0111 00X
MAX5820MEUA
-40°C to +85°C
8 MAX
1011 00X
MAX is a registered trademark of Maxim Integrated Products, Inc.
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