Rainbow Electronics MAX5173 User Manual

General Description

The MAX5171/MAX5173 low-power, serial, voltage-output,
14-bit digital-to-analog converters (DACs) feature a preci­sion output amplifier in a space-saving 16-pin QSOP
package. The MAX5171 operates from a +5V single sup­ply, 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 fea­ture 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 shut­down, shutdown lockout, a hardware clear pin, and a ref­erence 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/CMOS­compatible and are internally buffered with Schmitt trig­gers 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) tempera­ture range. The MAX5171/MAX5173 are pin-compatible
upgrades to the 12-bit MAX5175/MAX5177. For 100% pin­compatible 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 5kΩ || 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 [phone].
For small orders, phone [phone].

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

MAX5171AEEE

MAX5171BEEE
MAX5173AEEE

-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

MAX5171/MAX5173

Low-Power, Serial, 14-Bit DACs
with Force/Sense Voltage Output

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—MAX5171

(VDD= +5.0V ±10%, V

REF

= +2.5V, AGND = DGND, FB = OUT, RL= 5kΩ, CL= 100pF referenced to ground, TA= T

MIN

to T

MAX,

unless otherwise noted. Typical values are at TA= +25°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.

VDDto 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)

FB, OUT, REF to AGND .............................-0.3V 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, 10sec).............................+300°C

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

Bits14Resolution
MAX5171A ±1
MAX5171B

LSB

±2

INLIntegral Nonlinearity (Note 1)

LSB±1DNLDifferential Nonlinearity

mV±10V

OS

Offset Error (Note 2)

RL= ∞

LSB

-0.6 ±4

GEGain Error

RL= 5kΩ -1.6 ±8

µV/V10 120PSRRPower-Supply Rejection Ratio

f = 100kHz LSBp-p1Output Noise Voltage

nV/√Hz

50Output Thermal Noise Density

V0V

DD

- 1.4V

REF

Reference Input Range

kΩ18R

REF

Reference Input Resistance

V

REF

= 0.5Vp-p + 2.5VDC, slew-rate limited kHz350Reference -3dB Bandwidth

V

REF

= 1.4Vp-p + 2.5VDC, f = 10kHz,

code = 3FFF hex

dB84SINAD

Signal-to-Noise Plus Distortion
Ratio

V3V

IH

Input High Voltage

V0.8V

IL

Input Low Voltage

mV200V

HYS

Input Hysteresis

VIN= 0 or V

DD

µA0.001 ±1I

IN

Input Leakage Current

pF8C

IN

Input Capacitance

I

SOURCE

= 2mA VVDD- 0.5V

OH

Output High Voltage

I

SINK

= 2mA V0.13 0.4V

OL

Output Low Voltage

V

REF

= 3.6Vp-p + 1.8VDC, f = 1kHz,

code = all 0s

dB-84Reference Feedthrough

STATIC PERFORMANCE

REFERENCE

MULTIPLYING-MODE PERFORMANCE

DIGITAL INPUTS

DIGITAL OUTPUTS

MAX5171/MAX5173

Low-Power, Serial, 14-Bit DACs

with Force/Sense Voltage Output

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—MAX5171 (continued)

(VDD= +5V ±10%, V

REF

= +2.5V, AGND = DGND, FB = OUT, RL= 5kΩ, CL= 100pF referenced to ground, TA= T

MIN

to T

MAX

,

unless otherwise noted. Typical values are at T

A

= +25°C.)

CONDITIONS

V/µs0.6SRVoltage Output Slew Rate

V0V

DD

Output Voltage Swing (Note 3)

µA-0.1 0 0.1Current into FB

µs40Time Required to Exit Shutdown

UNITSMIN TYP MAXSYMBOLPARAMETER

CS = VDD; f

SCLK

= 100kHz, V

SCLK

= 5Vp-p

nV-s1Digital Feedthrough

V4.5 5.5V

DD

Positive Supply Voltage

mA0.26 0.35I

DD

Power-Supply Current (Note 4)

µA110Shutdown Current (Note 4)

ns100t

CP

SCLK Clock Period

ns40t

CH

SCLK Pulse Width High

ns40t

CL

SCLK Pulse Width Low

ns40t

CSS

CS Fall to SCLK Rise Setup
Time

ns40t

DS

SDI Setup Time

ns0t

DH

SDI Hold Time

C

LOAD

= 200pF ns80t

DO1

SCLK Rise to DOUT Valid
Propagation Delay

C

LOAD

= 200pF ns80t

DO2

SCLK Fall to DOUT Valid
Propagation Delay

ns10t

CS0

SCLK Rise to CS Fall Delay

ns100t

CSW

CS Pulse Width High

ns0t

CSH

SCLK Rise to CS Rise Hold
Time

ns40t

CS1

CS Rise to SCLK Rise Hold Time

To ±0.5LSB, from 10mV to full scale µs12Output Settling Time

DYNAMIC PERFORMANCE

POWER SUPPLIES

TIMING CHARACTERISTICS

MAX5171/MAX5173

Low-Power, Serial, 14-Bit DACs
with Force/Sense Voltage Output

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—MAX5173

(VDD= +2.7V to +3.6V, V

REF

= 1.25V, AGND = DGND, FB = OUT, RL= 5kΩ, CL= 100pF referenced to ground, TA= T

MIN

to T

MAX

,

unless otherwise noted. Typical values are at T

A

= +25°C).

Bits14Resolution

MAX5173A ±2

V

REF

= 1.6Vp-p + 0.8VDC, f = 1kHz,

code = all 0s

dB

MAX5173B

LSB

±4

INLIntegral Nonlinearity (Note 5)

LSB±1DNLDifferential Nonlinearity

mV±10

CONDITIONS

V

OS

Offset Error (Note 2)

RL= ∞

LSB

-0.6 ±4

GEGain Error

RL= 5kΩ -1.6 ±8

-84

µV/V10 120PSRRPower-Supply Rejection Ratio

f = 100kHz LSBp-p2Output Noise Voltage

nV/√Hz

50Output Thermal Noise Density

V0V

DD

- 1.4V

REF

Reference Input Range

kΩ18R

REF

Reference Input Resistance

V

REF

= 0.5Vp-p + 1.25VDC, slew-rate limited kHz350Reference -3dB Bandwidth

V

REF

= 0.9Vp-p + 1.25VDC, f = 10kHz,

code = 3 FFF Hex

dB78SINAD

Signal-to-Noise Plus Distortion
Ratio

Reference Feedthrough

V2.2V

IH

Input High Voltage

V0.8V

IL

Input Low Voltage

mV200V

HYS

Input Hysteresis

VIN= 0 or V

DD

µA-1 0.001 ±1I

IN

Input Leakage Current

UNITSMIN TYP MAXSYMBOLPARAMETER

pF8C

IN

Input Capacitance

I

SOURCE

= 2mA VVDD- 0.5V

OH

Output High Voltage

I

SINK

= 2mA V0.13 0.4V

OL

Output Low Voltage

STATIC PERFORMANCE

REFERENCE

MULTIPLYING-MODE PERFORMANCE

DIGITAL INPUTS

DIGITAL OUTPUTS

MAX5171/MAX5173

Low-Power, Serial, 14-Bit DACs

with Force/Sense Voltage Output

_______________________________________________________________________________________ 5

Note 1: INL guaranteed between codes 64 and 16383.
Note 2: Offset is measured at the code that comes closest to 10mV.
Note 3: Accuracy is better than 1.0 LSB for V

OUT

= 10mV to VDD- 180mV. Guaranteed by PSR test on end points.

Note 4: R

L

= open and digital inputs are either VDDor DGND.

Note 5: INL guaranteed between codes 128 and 16383.

ELECTRICAL CHARACTERISTICS—MAX5173 (continued)

(VDD= +2.7V to +3.6V, V

REF

= 1.25V, AGND = DGND, FB = OUT, RL= 5kΩ, CL= 100pF referenced to ground, TA= T

MIN

to T

MAX

,

unless otherwise noted. Typical values are at T

A

= +25°C).

µA110Shutdown Current (Note 4)

ns150t

CP

SCLK Clock Period

ns75t

CH

SCLK Pulse Width High

ns75

CONDITIONS

t

CL

SCLK Pulse Width Low

ns60t

CSS

CS Fall to SCLK Rise Setup
Time

ns0t

CSS

SCLK Rise to CS Rise Hold
Time

ns60t

DS

SDI Setup Time

ns0t

DH

SDI Hold Time

C

LOAD

= 200pF ns200t

DO1

SCLK Rise to DOUT Valid
Propagation Delay

ns75t

CS1

CS Rise to SCLK Rise Hold Time

C

LOAD

= 200pF ns200t

DO2

SCLK Fall to DOUT Valid
Propagation Delay

To ±0.5LSB, from 10mV to full-scale µs12Output Settling Time

ns10t

CS0

SCLK Rise to CS Fall Delay

ns150t

CSW

CS Pulse Width High

V/µs0.6SRVoltage Output Slew Rate

V0 V

DD

Output Voltage Swing (Note 3)

µA-0.1 0 0.1Current into FB

µs40Time Required to Exit Shutdown

UNITSMIN TYP MAXSYMBOLPARAMETER

CS = VDD, DIN = 50kHz; f

SCLK

= 100kHz,

V

SCLK

= 3Vp-p

nV-s1Digital Feedthrough

V2.7 3.6V

DD

Positive Supply Voltage

mA0.26 0.35I

DD

Power-Supply Current (Note 4)

DYNAMIC PERFORMANCE

POWER SUPPLIES

TIMING CHARACTERISTICS