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MAX551ACUB View Datasheet(PDF) - Maxim Integrated

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MAX551ACUB Datasheet PDF : 12 Pages
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19-1260; Rev 1; 9/02
+3V/+5V, 12-Bit, Serial, Multiplying DACs
in 10-Pin µMAX Package
_______________General Description
The MAX551/MAX552 are 12-bit, current-output, 4-quad-
rant multiplying digital-to-analog converters (DACs).
These devices are capable of providing unipolar or
bipolar outputs when operating from either a single +5V
(MAX551) or +3V (MAX552) power supply. An internal
power-on-reset circuit clears all DAC registers on
power-up, setting the DAC output voltage to 0V.
The SPI™/QSPI™ and MICROWIRE™-compatible 3-
wire serial interface saves board space and reduces
power dissipation compared with parallel-interface
devices. The MAX551/MAX552 feature double-buffered
interface logic with a 12-bit input register and a 12-bit
DAC register. Data in the DAC register sets the DAC
output voltage. Data is loaded into the input register
through the serial interface. The LOAD input transfers
data from the input register to the DAC register, updat-
ing the DAC output voltage.
The MAX551/MAX552 are available in an 8-pin DIP
package or a space-saving 10-pin µMAX package. The
µMAX package provides an asynchronous clear (CLR)
input that clears all DAC registers when pulled to GND,
setting the output voltage to 0V.
________________________Applications
Automatic Calibration
Gain Adjustment
Transducer Drivers
Process-Control I/O Boards
Digitally Controlled Filters
Motion-Controlled Systems
µP-Controlled Systems
Programmable Amplifiers/Attenuators
________________Functional Diagram
____________________________Features
o Single-Supply Operation:
+4.5V to +5.25V (MAX551)
+2.7V to +3.6V (MAX552)
o 12.5MHz 3-Wire Serial Interface
o SPI/QSPI and MICROWIRE Compatible
o Power-On Reset Clears DAC Output to Zero
o Asynchronous Clear Input Clears DAC Output
to Zero
o Voltage Mode or Bipolar Mode Operation with
a Single Power Supply
o Schmitt-Trigger Digital Inputs for Direct
Optocoupler Interface
o 0.4µA Supply Current
o 10-Pin µMAX Package
______________Ordering Information
PART
TEMP RANGE
PIN-
LINEARITY
PACKAGE (LSB)
MAX551ACPA 0°C to +70°C 8 Plastic DIP ±1/2
MAX551BCPA
MAX551ACUB
MAX551BCUB
0°C to +70°C
0°C to +70°C
0°C to +70°C
8 Plastic DIP
10 µMAX
10 µMAX
±1
±1/2
±1
MAX551AEPA
MAX551BEPA
MAX551AEUB
MAX551BEUB
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8 Plastic DIP
8 Plastic DIP
10 µMAX
10 µMAX
±1/2
±1
±1/2
±1
Ordering Information continued at end of data sheet.
_________________Pin Configurations
REF
CLR*
LOAD
12-BIT
D/A CONVERTER
MAX551
MAX552
12-BIT
DAC REGISTER
12-BIT
SHIFT REGISTER
*µMAX PACKAGE ONLY
RFB
POWER-ON
RESET
DIN
RFB
OUT
AGND*
VDD
GND
SCLK
TOP VIEW
OUT 1
GND 2
VDD 3
LOAD 4
MAX551
MAX552
DIP
8 RFB OUT 1
7 REF AGND 2
GND 3
6 SCLK
VDD 4
5 DIN LOAD 5
MAX551
MAX552
µMAX
10 RFB
9 REF
8 CLR
7 SCLK
6 DIN
SPI and QSPI are trademarks of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products 1
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.
 

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