MAX5170 Maxim, MAX5170 Datasheet
MAX5170
Manufacturer Part Number
MAX5170
Description
Low-Power / Serial / 14-Bit DACs with Voltage Output
Manufacturer
Maxim
Datasheet
1.MAX5170.pdf
(16 pages)
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The MAX5170/MAX5172 low-power, serial, voltage-out-
put, 14-bit digital-to-analog converters (DACs) feature a
precision output amplifier in a space-saving 16-pin
QSOP package. The MAX5170 operates from a +5V
single supply and the MAX5172 operates from a +3V
single supply. Both devices draw only 280µA of supply
current, which reduces to 1µA in shutdown. In addition,
the programmable power-up reset feature allows for a
user-selectable power-up output voltage of either 0 or
midscale.
The 3-wire serial interface is compatible with SPI™,
QSPI™, and MICROWIRE™ standards. An input regis-
ter followed by a DAC register provides a double-
buffered input, allowing the input and DAC registers to
be updated independently or simultaneously with a 16-
bit serial word. Additional features include software and
hardware shutdown, shutdown lockout, a hardware
clear pin, and a reference input capable of accepting
DC and offset AC signals. These devices provide a pro-
grammable digital output pin for added functionality
and a serial-data output pin for daisy-chaining. All logic
inputs are TTL/CMOS-compatible and are internally
buffered with Schmitt triggers to allow direct interfacing
to optocouplers.
The MAX5170/MAX5172 incorporate a proprietary on-chip
circuit that keeps the output voltage virtually “glitch free,”
limiting the glitches to a few millivolts during power-up.
Both devices are available in 16-pin QSOP packages and
are specified for the extended (-40°C to +85°C) tempera-
ture range. For 100% pin-compatible DACS with internal
reference, see the 13-bit MAX5130/MAX5131 and the 12-
bit MAX5120/MAX5121 data sheets.
Functional Diagram appears at end of data sheet.
19-1478; Rev 0; 4/99
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Industrial Process Controls
Digital Offset and Gain Adjustment
Motion Control
Automatic Test Equipment (ATE)
Remote Industrial Controls
µP-Controlled Systems
________________________________________________________________ Maxim Integrated Products
General Description
Applications
Low-Power, Serial, 14-Bit DACs
MAX5170AEEE
MAX5170BEEE
MAX5172AEEE
MAX5172BEEE
±1 LSB INL
1µA Shutdown Current
“Glitch Free” Output Voltage at Power-Up
Single-Supply Operation
Full-Scale Output Range
Rail-to-Rail
Adjustable Output Offset
Low THD (-80dB) in Multiplying Operation
SPI/QSPI/MICROWIRE-Compatible 3-Wire
Serial Interface
Programmable Shutdown Mode and Power-Up
Reset (0 or Midscale)
Buffered Output Capable of Driving 5kΩ || 100pF
Loads
User-Programmable Digital Output Pin Allows
Serial Control of External Components
Pin-Compatible Upgrade to the 12-Bit
MAX5174/MAX5176
TOP VIEW
PART
+5V (MAX5170)
+3V (MAX5172)
+2.048V (MAX5172, V
+4.096V (MAX5170, V
with Voltage Output
®
Output Amplifier
SCLK
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
OUT
CLR
PDL
DIN
OS
CS
RS
1
2
3
4
5
6
7
8
Ordering Information
MAX5170
MAX5172
QSOP
Pin Configuration
REF
REF
= +1.25V)
= +2.5V )
16 QSOP
16 QSOP
16 QSOP
16 QSOP
PIN-PACKAGE
16
15
14
13
12
11
10
9
SHDN
V
N.C.
REF
AGND
UPO
DOUT
DGND
DD
Features
(LSB)
INL
±1
±2
±2
±4
1
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