MAX5312EAE-T Maxim Integrated, MAX5312EAE-T Datasheet

MAX5312EAE-T

Manufacturer Part Number

MAX5312EAE-T

Description

Digital to Analog Converters - DAC

Manufacturer

Maxim Integrated

Datasheet

1.MAX5312EAE-T.pdf (19 pages)

Specifications of MAX5312EAE-T

Number Of Converters

Number Of Dac Outputs

Resolution

12 bit

Interface Type

QSPI, Serial (SPI, Microwire)

Settling Time

10 us

Maximum Operating Temperature

+ 85 C

Mounting Style

SMD/SMT

Package / Case

SSOP-16

Minimum Operating Temperature

- 40 C

Output Type

Voltage

Supply Voltage - Max

15.75 V

Supply Voltage - Min

10.8 V

Voltage Reference

External

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The MAX5312 12-bit, serial-interface, digital-to-analog

converter (DAC) provides bipolar ±5V to ±10V outputs

from ±12V to ±15V power-supply voltages, or a unipo-

lar 5V to 10V output from a single 12V to 15V power-

supply voltage.

The MAX5312 features excellent linearity with both inte-

gral nonlinearity (INL) and differential nonlinearity (DNL)

guaranteed to ±1 LSB (max). The device also features

a fast 10µs to 0.5 LSB settling time, and a hardware-

shutdown feature that reduces current consumption to

3.5µA. The output goes to midscale at power-up in

bipolar mode (0V), and to zero scale at power-up in

unipolar mode (0V). A clear input (CLR) asynchronously

clears the DAC register and sets the output to 0V. The

output can be asynchronously updated with the load

DAC (LDAC) input.

The device features a 10MHz SPI™-/QSPI™-/

MICROWIRE™-compatible serial interface that oper-

ates with 3V or 5V logic. Additional features include a

serial-data output (DOUT) for daisy chaining and read-

back functions. The MAX5312 requires a 2V to 5.25V

external reference voltage and is available in a 16-pin

SSOP package that operates over the extended -40°C

to +85°C temperature range.

19-3119; Rev 0; 12/03

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

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.

Motor Control

Industrial Process Controls

Industrial Automation

Automatic Test Equipment (ATE)

Analog I/O Boards

Data-Acquisition Systems

________________________________________________________________ Maxim Integrated Products

±10V, 12-Bit, Serial, Voltage-Output DAC

General Description

Applications

♦ Unipolar or Bipolar Output-Voltage Ranges

♦ Guaranteed INL ≤ ±1 LSB (max)

♦ Guaranteed Monotonic: DNL ≤ ±1 LSB (max)

♦ 10µs Settling Time to 0.5 LSB

♦ Low 3.5µA Shutdown Current

♦ 10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial

♦ Power-On Reset Sets DAC Output to 0V

♦ Schmitt Trigger Inputs for Direct

♦ Serial-Data Output Allows Daisy Chaining

♦ Small 16-Pin SSOP

MAX5312EAE

Interface

Optocoupler Interface

of Devices

Unipolar: 0 to (+2 x V

Supply)

Bipolar: (-2 x V

TOP VIEW

PART

UNI/BIP

DGND

SHDN

DOUT

SCLK

DIN

REF

Ordering Information

-40°C to +85°C

TEMP RANGE

MAX5312

) to (+2 x V

SSOP

REF

Pin Configuration

) (Single or Dual

REF

LDAC

CLR

REF

AGND

SGND

OUT

) (Dual Supply)

PIN-PACKAGE

16 SSOP

Features

Related parts for MAX5312EAE-T

MAX5312EAE-T Summary of contents

Page 1

... Power-On Reset Sets DAC Output to 0V ♦ Schmitt Trigger Inputs for Direct Optocoupler Interface ♦ Serial-Data Output Allows Daisy Chaining of Devices ♦ Small 16-Pin SSOP Ordering Information PART TEMP RANGE MAX5312EAE -40°C to +85°C Pin Configuration TOP VIEW SCLK 1 DIN 2 CS ...

Page 2

Serial, Voltage-Output DAC ABSOLUTE MAXIMUM RATINGS V to AGND..........................................................-0.3V to +17V AGND ..........................................................-17V to +0. ..........................................................................+34V DGND ...........................................................-0.3V to +6V CC AGND to DGND.....................................................-0.3V to +0.3V SGND ...

Page 3

Serial, Voltage-Output DAC ELECTRICAL CHARACTERISTICS (DUAL SUPPLY) (continued +15V ±5 -15V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL ...

Page 4

Serial, Voltage-Output DAC ELECTRICAL CHARACTERISTICS (SINGLE SUPPLY +15V ±5 0V +5V ±10%, AGND = DGND = SGND = 0V unless otherwise noted. ...

Page 5

Serial, Voltage-Output DAC ELECTRICAL CHARACTERISTICS (SINGLE SUPPLY) (continued +15V ±5 0V +5V ±10%, AGND = DGND = SGND = 0V unless otherwise ...

Page 6

Serial, Voltage-Output DAC TIMING CHARACTERISTICS (V = +15V -15V or 0V +2.7V to +5.5V, AGND = DGND = SGND = unless otherwise noted. Typical ...

Page 7

Serial, Voltage-Output DAC (V = +15V -15V for bipolar graphs output unloaded +25°C, all graphs apply to both unipolar and bipolar, unless otherwise noted.) A INTERGRAL NONLINEARITY vs. INPUT CODE 0.5 ...

Page 8

Serial, Voltage-Output DAC (V = +15V -15V for bipolar graphs output unloaded +25°C, all graphs apply to both unipolar and bipolar, unless otherwise noted.) A BIPOLAR MAJOR CARRY GLITCH C = ...

Page 9

Serial, Voltage-Output DAC (V = +15V -15V for bipolar graphs output unloaded +25°C, all graphs apply to both unipolar and bipolar, unless otherwise noted.) A BIPOLAR NEGATIVE SUPPLY CURRENT vs. SUPPLY ...

Page 10

Serial, Voltage-Output DAC (V = +15V -15V for bipolar graphs output unloaded +25°C, all graphs apply to both unipolar and bipolar, unless otherwise noted.) A BIPOLAR OUTPUT VOLTAGE vs. OUTPUT CURRENT ...

Page 11

Serial, Voltage-Output DAC (V = +15V -15V for bipolar graphs output unloaded +25°C, all graphs apply to both unipolar and bipolar, unless otherwise noted.) A BIPOLAR STARTUP RESPONSE, C LOAD 20V/div ...

Page 12

Serial, Voltage-Output DAC PIN NAME Serial-Clock Input. Data is shifted from DIN into the internal register on the rising edge of SCLK. Data is 1 SCLK clocked out at DOUT on the falling edge of SCLK. SCLK is ...

Page 13

Serial, Voltage-Output DAC Detailed Description The MAX5312 12-bit DAC operates from either single or dual supplies. Dual ±12V to ±15V power supplies pro- vide a bipolar ±5V to ±10V output unipolar 0 to 10V output. Single ...

Page 14

Serial, Voltage-Output DAC Data in the shift register is transferred to the input register during the appropriate software command only. Data in the input register is transferred to the DAC register in one of two ways: using the ...

Page 15

Serial, Voltage-Output DAC CS0 CSS SCLK DIN MSB t CSE DOUT LDAC Figure 3. Serial-Interface Timing Diagram REF AGND DAC REGISTER UNI/BIP ...

Page 16

Serial, Voltage-Output DAC External Reference and Transfer Connect an external 2V to 5.25V reference to REF (the MAX6350 is recommended). Set the output voltage range with the reference and the input code by using the equations below. Unipolar ...

Page 17

Serial, Voltage-Output DAC REF 1 LSB = 4096 4095 4094 4093 4092 2049 2048 2047 hex DIGITAL INPUT CODE (LSB) Figure 5. Unipolar Transfer Function Applications Information A single +12V to ...

Page 18

Serial, Voltage-Output DAC SCLK CS CS MAX5312 SCLK DIN DOUT DIN Figure 7. Daisy Chaining Devices Chip Information TRANSISTOR COUNT: 3280 TECHNOLOGY: BiCMOS 18 ______________________________________________________________________________________ CS CS MAX5312 MAX5312 SCLK SCLK DIN DOUT DIN TO OTHER SERIAL DEVICES ...

Page 19

... 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 specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19 © 2003 Maxim Integrated Products ...

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