Rainbow Electronics MAX5173 - Manual

General Description
The MAX5171/MAX5173 low-power, serial, voltage-output,
14-bit digital-to-analog converters (DACs) feature a preci-
sion output amplifier in a space-saving 16-pin QSOP
package. The MAX5171 operates from a +5V single sup-
ply, and the MAX5173 operates from a +3V single supply.
The output amplifier’s inverting input is available to allow
specific gain configurations, remote sensing, and high
output current capability. This makes the MAX5171/
MAX5173 ideal for a wide range of applications, including
industrial process control. Both devices draw only 260µA
of supply current, which reduces to 1µA in shutdown
mode. In addition, the programmable power-up reset fea-
ture allows for a user-selectable output voltage of either 0
or midscale.
The 3-wire serial interface is compatible with SPI™,
QSPI™, and MICROWIRE™ standards. An input register
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 shut-
down, shutdown lockout, a hardware clear pin, and a ref-
erence input capable of accepting DC and offset AC
signals. These devices provide a programmable 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 trig-
gers to allow direct interfacing to optocouplers.
The MAX5171/MAX5173 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. The MAX5171/MAX5173 are pin-compatible
upgrades to the 12-bit MAX5175/MAX5177. For 100% pin-
compatible DACs with an internal reference, see the 13-bit
MAX5132/MAX5133 and the 12-bit MAX5122/MAX5123
data sheets.
Applications
Features
♦ ±1 LSB INL
♦ 1µA Shutdown Current
♦ “Glitch Free” Output Voltage at Power-Up
♦ Single-Supply Operation: +5V (MAX5171)
+3V (MAX5173)
♦ Full-Scale Output Range:
+2.048V (MAX5173, V REF = +1.25V)
+4.096V (MAX5171, V REF = +2.5V )
♦ Rail-to-Rail ® Output Amplifier
♦ Low THD (-80dB) in Multiplying Operation
♦ SPI/QSPI/MICROWIRE-Compatible 3-Wire
Serial Interface
♦ Programmable Shutdown Mode and Power-Up
Reset
♦ Buffered Output Capable of Driving 5k
Ω
|| 100pF
Loads
♦ User-Programmable Digital Output Pin Allows
Serial Control of External Components
♦ Pin-Compatible Upgrade to the 12-Bit
MAX5175/MAX5177
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.
MAX5171/MAX5173
Low-Power, Serial, 14-Bit DACs
with Force/Sense Voltage Output
________________________________________________________________ Maxim Integrated Products 1
19-1476; Rev 0; 4/99
Pin Configuration
Functional Diagram appears at end of data sheet.
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
FB V DD
N.C.
REF
AGND PDL
UPO
DOUT
DGND
TOP VIEW
MAX5171
MAX5173
QSOP
OUT
RS
CS
SHDN CLR
DIN
SCLK
Ordering Information
Digitally Programmable 4–20mA Current Loops
Industrial Process Control
Digital Offset and Gain Adjustment
Motion Control
Automatic Test Equipment (ATE)
Remote Industrial Controls
µP-Controlled Systems
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.
PART
MAX5171 AEEE
MAX5171BEEE
MAX5173 AEEE -40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
MAX5173BEEE -40°C to +85°C 16 QSOP
INL
(LSB)
±1
±2
±2
±4