MAX5258 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – +3V/+5V, Low-Power, 8-Bit Octal DACs with Rail-to-Rail Output Buffers

19-1844; Rev 1; 4/01
+3V/+5V, Low-Power, 8-Bit Octal DACs
with Rail-to-Rail Output Buffers
General Description
The MAX5258/MAX5259 are +3V/+5V single-supply,
digital serial-input, voltage-output, 8-bit octal digital-to-
analog converters (DACs). Internal precision buffers
swing Rail-to-Rail^®, and the reference input range
extends from ground to the positive supply. The +5V
(MAX5258) and the +3V (MAX5259) feature a 10µA
(max) shutdown mode.
The serial interface is double-buffered. A 16-bit input
shift register is followed by eight 8-bit input registers
and eight 8-bit DAC registers. The 16-bit serial word
consists of two “don’t care” bits, three address bits,
three control bits, and eight data bits. The input and
DAC registers can both be updated independently or
simultaneously with a single software command. The
asynchronous control input (LDAC) provides simultane-
ous updating of all eight DAC registers.
The interface is compatible with SPI™, QSPI™ (CPOL =
CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE™.
A buffered digital data output allows daisy-chaining of
serial devices.
The MAX5258/MAX5259 are available in a 16-pin QSOP
package.
Features
o +2.7V to +5.5V Single-Supply Operation
o Low Supply Current: 1.3mA
o Low-Power Shutdown Mode
0.54mA (MAX5259)
0.80mA (MAX5258)
o ±1LSB DNL (max)
o ±1LSB INL (max)
o Ground to V_DD Reference Input Range
o Output Buffer Amplifiers Swing Rail-to-Rail
o 10MHz Serial Interface, SPI, QSPI (CPOL = CPHA
= 0 or CPOL = CPHA = 1), and MICROWIRE-
Compatible
o Double-Buffered Registers for Synchronous
Updating
o Serial Data Output for Daisy-Chaining
o Ultra-Small 16-Pin QSOP Package
________________________Applications
Digital Gain and Offset Adjustment
Programmable Attenuators
Programmable Current Sources
Portable Instruments
Ordering Information
PART
SU PPL Y
TEMP. RANGE PIN-PACKAGE VOLTAGE
( V)
MAX5258EEE -40^oC to +85^oC
MAX5259EEE -40^oC to +85^oC
16 QSOP
16 QSOP
+5.0
+3.0
Pin Configuration
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.
TOP VIEW
OUTB 1
OUTA 2
GND 3
V_DD 4
REF 5
LDAC 6
OUTE 7
OUTF 8
MAX5258
MAX5259
QSOP
16 OUTC
15 OUTD
14 DOUT
13 DIN
12 SCLK
11 CS
10 OUTH
9 OUTG
________________________________________________________________ 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.