MAX5150 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface

19-1255; Rev 0; 8/97
Low-Power, Dual, 13-Bit Voltage-Output DACs
with Serial Interface
_______________General Description
The MAX5150/MAX5151 low-power, serial, voltage-out-
put, dual 13-bit digital-to-analog converters (DACs)
consume only 500µA from a single +5V (MAX5150) or
+3V (MAX5151) supply. These devices feature Rail-to-
Rail^® output swing and are available in a space-saving
16-pin QSOP package. To maximize the dynamic
range, the DAC output amplifiers are configured with an
internal gain of +2.
The 3-wire serial interface is SPI™/QSPI™ and
Microwire™ compatible. Each DAC has a double-
buffered input organized as an input register followed
by a DAC register, which allows the input and DAC reg-
isters to be updated independently or simultaneously
with a 16-bit serial word. Additional features include
programmable shutdown (2µA), hardware-shutdown
lockout, a separate reference voltage input for each
DAC that accepts AC and DC signals, and an active-
low clear input (CL) that resets all registers and DACs
to zero. These devices provide a programmable logic
pin for added functionality, and a serial-data output pin
for daisy-chaining.
________________________Applications
Industrial Process Control Remote Industrial Controls
Digital Offset and Gain
Adjustment
Microprocessor-
Controlled Systems
Motion Control
Automatic Test
Equipment (ATE)
____________________________Features
o 13-Bit Dual DAC with Internal Gain of +2
o Rail-to-Rail Output Swing
o 16µs Settling Time
o Single-Supply Operation: +5V (MAX5150)
+3V (MAX5151)
o Low Quiescent Current: 500µA (normal operation)
2µA (shutdown mode)
o SPI/QSPI and Microwire Compatible
o Available in Space-Saving 16-Pin QSOP Package
o Power-On Reset Clears Registers and DACs
to Zero
o Adjustable Output Offset
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
INL
(LSB)
MAX5150ACPE 0°C to +70°C 16 Plastic DIP ±1/2
MAX5150BCPE 0°C to +70°C 16 Plastic DIP ±1
MAX5150ACEE 0°C to +70°C 16 QSOP
±1/2
MAX5150BCEE 0°C to +70°C 16 QSOP
±1
MAX5150BC/D 0°C to +70°C Dice*
±1
Ordering Information continued at end of data sheet.
*Dice are tested at T_A = +25°C, DC parameters only.
Pin Configuration appears at end of data sheet.
_________________________________________________________Functional Diagram
DOUT CL
PDL
DGND AGND ^VDD
REFA
16-BIT
SHIFT
REGISTER
DECODE
CONTROL
LOGIC
OUTPUT
INPUT
REG A
INPUT
REG B
DAC
REG A
DAC A
MAX5150
MAX5151
DAC
REG B
DAC B
OUTA
R
R
FBA
OUTB
R
SERIAL
CONTROL
CS DIN SCLK
UPO
R
FBB
REFB
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
Microwire is a trademark of National Semiconductor Corp.
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