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參數(shù)資料
| 型號： | MAX549 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | +2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in レMAX Package |
| 中文描述： | 2.5V至5.5V，低功耗，單/雙，8位電壓在レmax包裝輸出DAC |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 172K |
| 代理商： | MAX549 |
_______________General Desc ription
The MAX548A/MAX549A/MAX550A serial, 8-bit voltage-
output digital-to-analog converters (DACs) operate from
a single +2.5V to +5.5V supply. Their ±1LSB TUE spec-
ification is guaranteed over temperature. Operating cur-
rent (supply current plus reference current) is typically
75μA per DAC with V
DD
= 2.5V. In shutdown, the DAC
is disconnected from the reference, reducing current
drain to less than 1μA. The MAX548A/MAX549A allow
each DAC to be shut down independently.
The 10MHz, 3-wire serial interface is compatible with
SPI /QSPI and Microwire interface standards.
Double-buffered inputs provide flexibility when updat-
ing the DACs; the input and DAC registers can be
updated individually or simultaneously.
The MAX548A is a dual DAC with an asynchronous
load input; it uses V
DD
as the reference input. The
MAX549A is a dual DAC with an external reference
input. The MAX550A is a single DAC with an external
reference input and an asynchronous load input.
The MAX548A/MAX549A/MAX550A’s low power con-
sumption and small μMAX and DIP packages make
these devices ideal for portable and battery-powered
applications.
________________________Applic ations
Battery-Powered Systems
VCXO Control
Comparator-Level Settings
GaAs Amp Bias Control
Digital Gain and Offset Control
____________________________Features
o
+2.5V to +5.5V Single-Supply Operation
o
±1LSB (max) TUE
o
Power-On Reset Clears All Registers to Zero
o
Low Operating Current:
150μA (MAX548A/MAX549A, V
REF
= +2.5V)
75μA (MAX550A, V
REF
= +2.5V)
o
1μA Shutdown Mode
o
10MHz, 3-Wire Serial Interface Compatible with
SPI/QSPI and Microwire
o
μMAX Package—50% Smaller than 8-Pin SO
o
Independent Shutdown of DACs
(MAX548A/MAX549A)
M
+2.5V to +5.5V, Low-Power, S ingle/Dual,
8-Bit Voltage-Output DACs in μMAX Pac kage
________________________________________________________________ Maxim Integrated Products
1
LDAC
SCLK
DIN
1
2
8
7
V
DD
OUTB
OUTA
CS
GND
DIP/
μ
MAX
TOP VIEW
3
4
6
5
MAX548A
_________________Pin Configurations
_____________________S elec tor Guide
19-1206; Rev 0; 3/97
PART
MAX548A
CPA
MAX548ACUA
MAX548AC/D
MAX548AEPA
MAX548AEUA
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
8 Plastic DIP
8 μMAX
Dice*
8 Plastic DIP
8 μMAX
______________Ordering Information
Ordering Information continued at end of data sheet.
*Dice are specified at T
A
= +25°C, DC parameters only.
Contact factory for availability of 8-pin SO package.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
MAX548A
MAX549A
Number of DACs
2
2
DAC Reference
V
DD
External
FEATURE
External
Asynchronous
Load DAC Input
√
MAX550A
1
—
μMAX Package
√
√
√
√
SPI and QSPI are trademarks of Motorola Inc.
Microwire is a trademark of National Semiconductor Corp.
-40°C to +85°C
Pin Configurations continued at end of data sheet.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX549A | Differential Bus Transceiver 8-SOIC -40 to 105 |
| MAX549ACPA | Differential Bus Transceiver 8-SOIC -40 to 105 |
| MAX549ACUA | Differential Bus Transceiver 8-SOIC -40 to 105 |
| MAX550A | +2.5V to +5.5V.Low-Power.Single/Dual.8-Bit Voltage-Output DACs in µ.MAX Package |
| MAX552ACPA | 12-Bit Digital-to-Analog Converter |
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