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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5170 Datasheet

14-Bit DACs

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19-1478; Rev 1; 9/02
Low-Power, Serial, 14-Bit DACs
with Voltage Output
General Description
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.
Applications
Industrial Process Controls
Digital Offset and Gain Adjustment
Motion Control
Automatic Test Equipment (ATE)
Remote Industrial Controls
µP-Controlled Systems
Functional Diagram appears at end of data sheet.
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.
Features
o ±1 LSB INL
o 1µA Shutdown Current
o “Glitch Free” Output Voltage at Power-Up
o Single-Supply Operation
+5V (MAX5170)
+3V (MAX5172)
o Full-Scale Output Range
+2.048V (MAX5172, VREF = +1.25V)
+4.096V (MAX5170, VREF = +2.5V )
o Rail-to-Rail® Output Amplifier
o Adjustable Output Offset
o Low THD (-80dB) in Multiplying Operation
o SPI/QSPI/MICROWIRE-Compatible 3-Wire
Serial Interface
o Programmable Shutdown Mode and Power-Up
Reset (0 or Midscale)
o Buffered Output Capable of Driving 5k|| 100pF
Loads
o User-Programmable Digital Output Pin Allows
Serial Control of External Components
o Pin-Compatible Upgrade to the 12-Bit
MAX5174/MAX5176
Ordering Information
PART
MAX5170AEEE
MAX5170BEEE
MAX5172AEEE
MAX5172BEEE
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
INL
(LSB)
16 QSOP
±1
16 QSOP
±2
16 QSOP
16 QSOP
±2
±4
Pin Configuration
TOP VIEW
OS 1
OUT 2
RS 3
PDL 4
CLR 5
CS 6
DIN 7
SCLK 8
MAX5170
MAX5172
QSOP
16 VDD
15 N.C.
14 REF
13 AGND
12 SHDN
11 UPO
10 DOUT
9 DGND
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX5170 Datasheet

14-Bit DACs

No Preview Available !

Low-Power, Serial, 14-Bit DACs
with Voltage Output
ABSOLUTE MAXIMUM RATINGS
VDD to AGND, DGND ............................................-0.3V to +6.0V
AGND to DGND.....................................................-0.3V to +0.3V
Digital Inputs to DGND..........................................-0.3V to +6.0V
DOUT, UPO to DGND ................................-0.3V to (VDD + 0.3V)
OUT, REF to AGND ...................................-0.3V to (VDD + 0.3V)
OS to AGND ...............................(AGND - 4.0V) to (VDD + 0.3V)
Maximum Current into Any Pin............................................50mA
Continuous Power Dissipation (TA = +70°C)
16-Pin QSOP (derate 8mW/°C above +70°C)..............667mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICSMAX5170
(VDD = +5V ±10%, VREF = 2.5V, OS = AGND = DGND, RL = 5k, CL = 100pF referenced to ground, TA = TMIN to TMAX, unless
otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
STATIC PERFORMANCE
Resolution
SYMBOL
Integral Nonlinearity (Note 1)
INL
Differential Nonlinearity
Offset Error (Note 2)
DNL
VOS
Gain Error
GE
Power-Supply Rejection Ratio
PSRR
Output Noise Voltage
Output Thermal Noise Density
REFERENCE
Reference Input Range
VREF
Reference Input Resistance
RREF
MULTIPLYING-MODE PERFORMANCE
Reference -3dB Bandwidth
Reference Feedthrough
CONDITIONS
MAX5170A
MAX5170B
RL =
RL = 5k
f = 100kHz
VREF = 0.5Vp-p + 1.5VDC, slew-rate limited
VREF = 3.6Vp-p + 1.8VDC, f = 1kHz,
code = all 0s
MIN TYP MAX UNITS
14 Bits
±1
LSB
±2
±1 LSB
±10 mV
-0.6 ±4
LSB
-1.6 ±8
10 120 µV/V
1 LSBp-p
80 nV/Hz
0
VDD - 1.4
V
18 k
350 kHz
-80 dB
Signal-to-Noise Plus Distortion
Ratio
SINAD
VREF = 1.5 Vp-p + 1.5VDC, f = 10kHz,
code = 3FFF hex
82 dB
DIGITAL INPUTS
Input High Voltage
Input Low Voltage
Input Hysteresis
Input Leakage Current
Input Capacitance
DIGITAL OUTPUTS
Output High Voltage
Output Low Voltage
VIH
VIL
VHYS
IIN
CIN
VIN = 0 or VDD
VOH
VOL
ISOURCE = 2mA
ISINK = 2mA
3
0.8
200
0.001 ±1
8
VDD - 0.5
0.13
0.4
V
V
mV
µA
pF
V
V
2 _______________________________________________________________________________________


Part Number MAX5170
Description 14-Bit DACs
Maker Maxim
Total Page 16 Pages
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