MAX5174AEEE MAXIM [Maxim Integrated Products], MAX5174AEEE Datasheet

MAX5174AEEE

Manufacturer Part Number

MAX5174AEEE

Description

Low-Power, Serial, 12-Bit DACs with Voltage Output

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX5174AEEE.pdf (16 pages)

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The MAX5174/MAX5176 low-power, serial, voltage-out-

put, 12-bit digital-to-analog converters (DACs) feature a

precision output amplifier in a space-saving 16-pin

QSOP package. The MAX5174 operates from a single

+5V supply, and the MAX5176 operates from a single

+3V 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 output voltage state of either 0 or mid-

scale.

The 3-wire, digital, serial interface is compatible with

SPI™/QSPI™, and MICROWIRE™ standards. An input

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 MAX5174/MAX5176 incorporate a proprietary on-

chip circuit that keeps the output voltage virtually

“glitch free,” limiting the glitches to a few millivolts dur-

ing 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 MAX5170/MAX5172 are pin-

compatible 14-bit upgrades to the MAX5174/MAX5176.

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.

19-1475; 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, 12-Bit DACs

MAX5174AEEE

MAX5174BEEE

MAX5176AEEE

MAX5176BEEE

±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

Buffered Output Capable of Driving 5kΩ || 100pF

Loads

User-Programmable Digital Output Pin Allows

Serial Control of External Components

14-Bit Upgrades Available (MAX5170/MAX5172)

TOP VIEW

PART

+5V (MAX5174)

+3V (MAX5176)

+2.048V (MAX5176, V

+4.096V (MAX5174, V

with Voltage Output

SCLK

Output Amplifier

OUT

CLR

PDL

DIN

TEMP. RANGE

-40°C to +85°C

Ordering Information

MAX5174

MAX5176

QSOP

Pin Configuration

REF

= +1.25V)

= +2.5V )

16 QSOP

PIN-PACKAGE

SHDN

N.C.

REF

AGND

UPO

DOUT

DGND

Features

(LSB)

INL

±1

±2

±4

Related parts for MAX5174AEEE

MAX5174AEEE Summary of contents

Page 1

... 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 14-Bit Upgrades Available (MAX5170/MAX5172) PART MAX5174AEEE MAX5174BEEE MAX5176AEEE MAX5176BEEE Applications TOP VIEW Features = +1.25V) REF = +2.5V ) REF ® ...

Page 2

Low-Power, Serial, 12-Bit DACs with Voltage Output ABSOLUTE MAXIMUM RATINGS V to AGND, DGND ............................................-0.3V to +6.0V DD AGND to DGND.....................................................-0.3V to +0.3V Digital Inputs to DGND..........................................-0.3V to +6.0V DOUT, UPO to DGND ................................-0. OUT, REF to AGND ...

Page 3

ELECTRICAL CHARACTERISTICS—MAX5174 (continued +5V ±10 2.5V AGND = DGND REF otherwise noted. Typical values are at T PARAMETER SYMBOL DYNAMIC PERFORMANCE Voltage Output Slew Rate SR Output Settling Time Output Voltage Swing ...

Page 4

Low-Power, Serial, 12-Bit DACs with Voltage Output ELECTRICAL CHARACTERISTICS—MAX5176 (V = +2.7V to +3.6V 1.25V AGND = DGND REF otherwise noted. Typical values are PARAMETER SYMBOL STATIC PERFORMANCE Resolution Integral Nonlinearity ...

Page 5

ELECTRICAL CHARACTERISTICS—MAX5176 (continued +2.7V to +3.6V 1.25V AGND = DGND REF otherwise noted. Typical values are at T PARAMETER SYMBOL DYNAMIC PERFORMANCE Voltage Output Slew Rate SR Output Settling Time Output Voltage ...

Page 6

Low-Power, Serial, 12-Bit DACs with Voltage Output (MAX5174 +5V 2.5V; MAX5176 REF T = +25°C, unless otherwise noted.) A NO-LOAD SUPPLY CURRENT vs. SUPPLY VOLTAGE 330 320 310 300 290 280 270 260 250 ...

Page 7

V = +5V 2.5V; MAX5176 REF T = +25°C, unless otherwise noted.) A FFT PLOT 1.25V + 1.13Vp 10kHz REF OUT REF 12.5dB/div 20 FREQUENCY (Hz) ...

Page 8

Low-Power, Serial, 12-Bit DACs with Voltage Output (MAX5174 +5V 2.5V; MAX5176 REF T = +25°C, unless otherwise noted.) A OUTPUT VOLTAGE vs. TEMPERATURE 2.0490 2.0488 2.0486 2.0484 2.0482 2.0480 -50 -30 - ...

Page 9

V = +5V 2.5V; MAX5176 REF T = +25°C, unless otherwise noted.) A DIGITAL FEEDTHROUGH (SCLK, OUT) MAX5174/6 toc26 SCLK 2V/div OUT 500 V/div 2 s/div AC-COUPLED PIN NAME 1 OS Offset Adjustment. Connect to ...

Page 10

Low-Power, Serial, 12-Bit DACs with Voltage Output Detailed Description The MAX5174/MAX5176 12-bit, serial, voltage-output DACs operate with a 3-wire serial interface. These devices include a 16-bit shift register and a double- buffered input composed of an input register and a ...

Page 11

DIN MAX5174 SCLK MAX5176 CS CPOL = 0, CPHA = 0 Figure 2. Connections for SPI and QSPI Standards SCLK MAX5174 DIN MAX5176 CS Figure 3. Connections for MICROWIRE Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD C1 C0 D11..................D0 ...

Page 12

Low-Power, Serial, 12-Bit DACs with Voltage Output CS SCLK 1 DIN Figure 4. Serial-Interface Timing Diagram CS t CSO SCLK DIN DOUT Figure 5. Detailed Serial-Interface Timing Diagram User-Programmable Logic Output (UPO) The user-programmable logic output (UPO) ...

Page 13

REF V DD MAX5174 MAX5176 DAC AGND Figure 6. Unipolar Output Circuit (Rail-to-Rail) +5V/+3V REF V DD MAX5174 MAX5176 DAC AGND DGND Figure 7. Setting OS for Output Offset +5V/+3V REF 10k MAX5174 MAX5176 DAC OUT ...

Page 14

Low-Power, Serial, 12-Bit DACs with Voltage Output Using an AC Reference The MAX5174/MAX5176 accept references with AC components, as long as the reference voltage remains between 0 and V - 1.4V. Figure 11 shows a tech- DD nique for applying ...

Page 15

MAX495 REFERENCE INPUT R REF 2 500mVp-p DAC MAX5174 MAX5176 AGND Figure 11. AC Reference Input Circuit CS DIN SCLK PDL SERIAL CONTROL SHDN RS CLR MAX5174 MAX5176 ______________________________________________________________________________________ Low-Power, Serial, 12-Bit DACs with ...

Page 16

Low-Power, Serial, 12-Bit DACs with Voltage Output Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and ...

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