Rainbow Electronics MAX5159 - Manual

_______________General Description
The MAX5158/MAX5159 low-power, serial, voltage-
output, dual, 10-bit digital-to-analog converters (DACs)
consume only 500µA from a single +5V (MAX5158) or
+3V (MAX5159) supply. These devices feature Rail-to-
Rail
® output swing and are available in a space-saving
16-pin QSOP package. To maximize dynamic range, the
DAC output amplifiers are configured with an internal gain
of +2V/V.
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 registers
to be updated independently or simultaneously with a
16-bit serial word. Additional features include a 2µA pro-
grammable shutdown, 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. The
MAX5158/MAX5159 provide a programmable logic pin
for added functionality and a serial-data output pin for
daisy chaining.
________________________Applications
Digital Offset and Gain Adjustment
µP-Controlled Systems
Motion Control
Remote Industrial Controls
____________________________Features
♦ 10-Bit Dual DAC with Internal Gain of +2V/V
♦ Rail-to-Rail Output Swing
♦ 8µs Settling Time
♦ Single-Supply Operation: +5V (MAX5158)
+3V (MAX5159)
♦ Low Quiescent Current: 500µA (normal operation)
2µA (shutdown mode)
♦ SPI/QSPI and Microwire Compatible
♦ Available in Space-Saving 16-Pin QSOP Package
♦ Power-On Reset Clears Registers and DACs to Zero
♦ Adjustable Output Offset
______________Ordering Information
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd. Microwire is a trademark of National Semiconductor Corp.
SPI and QSPI are trademarks of Motorola, Inc.
Ordering Information continued at end of data sheet.
* Contact factory for availability.
REFA V DD AGND DGND PDL CL DOUT
16-BIT
SHIFT
REGISTER
SR
CONTROL
INPUT
REG A
INPUT
REG B
SCLK UPO REFB DIN CS
DAC B
DAC A
DAC
REG A
LOGIC
OUTPUT
DECODE
CONTROL
DAC
REG B
MAX5158
MAX5159
OUTB
R
R
R
R
OSB
OUTA
OSA
_________________________________________________________Functional Diagram
MAX5158/MAX5159
Low-Power, Dual, 10-Bit, Voltage-Output DACs
with Serial Interface
________________________________________________________________ Maxim Integrated Products 1
19-1315; Rev 1; 12/97
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
For small orders, phone 408-737-7600 ext. 3468.
PIN-PACKAGE TEMP. RANGE PART
16 QSOP -40°C to +85°C MAX5158EEE
16 Plastic DIP
16 QSOP
16 Plastic DIP 0°C to +70°C
0°C to +70°C
-40°C to +85°C MAX5158EPE
MAX5158CEE
MAX5158 CPE
16 CERDIP* -55°C to +125°C MAX5158MJE