MAXIM MAX5134 User Manual

General Description

The MAX5134 is a low-power, quad 16-bit, buffered volt­age-output, high-linearity digital-to-analog converter
(DAC). It uses a precision internal reference or a preci­sion external reference for rail-to-rail operation. The
MAX5134 accepts a wide +2.7V to +5.25V supply-volt­age range to accommodate most low-power and low­voltage applications. The device accepts a 3-wire
SPITM-/QSPITM-/MICROWIRETM-/DSP-compatible serial
interface to save board space and reduce the complexi­ty of optically isolated and transformer-isolated applica­tions. The digital interface’s double-buffered hardware
and software LDAC provide simultaneous output update.
The serial interface features a READY output for easy
daisy-chaining of several MAX5134 devices and/or other
compatible devices. The MAX5134 includes a hardware
input to power-up or reset the DAC outputs to zero or
midscale, providing additional safety for applications that
drive valves or other transducers that need to be off dur­ing power-up. The high linearity of the DACs makes
these devices ideal for precision control and instrumen­tation applications. The MAX5134 is available in an ultra­small (4mm x 4mm), 24-pin TQFN package and is
specified over the -40°C to +105°C extended industrial
temperature range.

Applications

Automatic Test Equipment

Automatic Tuning

Communication Systems

Data Acquisition

Gain and Offset Adjustment

Portable Instrumentation

Power-Amplifier Control

Process Control and Servo Loops

Programmable Voltage and Current Sources

Features

♦ 16-Bit Resolution in a 4mm x 4mm, 24-Pin TQFN

Package

♦ Hardware-Selectable Power-Up or Reset-to-Zero/

Midscale DAC Output

♦ Double-Buffered Input Registers
♦ LDAC Asynchronously Updates DAC Outputs

Simultaneously

♦ READY Facilitates Daisy Chaining
♦ High-Performance 10ppm/°C Internal Reference
♦ Guaranteed Monotonic Over All Operating

Conditions

♦ Wide +2.7V to +5.25V Supply Range
♦ Rail-to-Rail Buffered Output Operation
♦ Low Gain Error (Less Than ±0.5%FS) and Offset

(Less Than ±10mV)

♦ 30MHz 3-Wire SPI-/QSPI-/MICROWIRE-/

DSP-Compatible Serial Interface

♦ CMOS-Compatible Inputs with Hysteresis
♦ Low-Power Consumption (I

SHDN

= 2µA max)

MAX5134

Low-Power, Quad 16-Bit,

Buffered Voltage-Output DAC

________________________________________________________________

Maxim Integrated Products

1

Pin Configuration

19-4209; Rev 0; 7/08

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

EVALUATION KIT

AVAILABLE

Functional Diagram and Typical Operating Circuit appear
at end of data sheet.

SPI and QSPI are trademarks of Motorola Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Ordering Information

+

Denotes a lead-free/RoHS-compliant package.

*

EP = Exposed pad.

PART TEMP RANGE PIN-PACKAGE

MAX5134AGTG+

24 TQFN-EP*

-40°C to +105°C

TOP VIEW

GND

N.C.

REF0

REFI

N.C.

AVDD

*EXPOSED PAD.

19

20

21

22

23

24

+

OUT1

12

OUT0

M/Z

N.C.

1718 16 14 13

N.C.

THIN QFN

4mm x 4mm

15

MAX5134

456

3

DVDD

LDAC

READY

N.C.

*EP

N.C.

OUT2

OUT3

12

SCLK

N.C.

11

CS

10

9

DIN

N.C.

8

GND

7

MAX5134

Low-Power, Quad 16-Bit,
Buffered Voltage-Output DAC

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

AVDD

= 2.7V to 5.25V, V

DVDD

= 2.7V to 5.25V, V

AVDD

≥ V

DVDD

, V

GND

= 0, V

REFI

= V

AVDD

- 0.25V, C

OUT

= 200pF, R

OUT

= 10kΩ,

T

A

= 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.

AVDD to GND...........................................................-0.3V to +6V

DVDD to GND...........................................................-0.3V to +6V

OUT0–OUT3 to GND ....................................-0.3V to the lower of

(AVDD + 0.3V) and +6V

REFI, REFO, M/Z to GND .............................-0.3V to the lower of

(AVDD + 0.3V) and +6V

SCLK, DIN, CS to GND ................................-0.3V to the lower of

(DVDD + 0.3V) and +6V

LDAC, READY to GND .................................-0.3V to the lower of

(DVDD + 0.3V) and +6V

Continuous Power Dissipation (T

A

= +70°C)

24-Pin TQFN (derate at 17.5mW/°C above +70°C) 2222.2mW

Maximum Current into Any Input or Output

with the Exception of M/Z Pin .......................................±50mA

Maximum Current into M/Z Pin ...........................................±5mA

Operating Temperature Range .........................-40°C to +105°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

STATIC ACCURACY (Notes 1, 2)

Resolution N 16 Bits

Integral Nonlinearity INL

Differential Nonlinearity DNL Guaranteed monotonic -1.0 +1.0 LSB

Offset Error OE (Note 4) -10 ±1 +10 mV

Offset-Error Drift ±4 µV/°C

Gain Error GE (Note 4) -0.5 ±0.2 +0.5 % of FS

Gain Temperature Coefficient ±2

REFERENCE INPUT

Reference-Input Voltage Range V

Reference-Input Impedance 113 kΩ

INTERNAL REFERENCE

Reference Voltage V

Refer ence Tem p er atur e C oeffi ci ent (Note 5) 10 25 ppm/°C
Reference Output Impedance 1 Ω

Line Regulation 100 ppm/V

Maximum Capacitive Load C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REFI

REFO

R

V

= 5V,

REFI

AVDD = 5.25V

AVDD = 3V to 5.25V 2 AVDD

AVDD = 2.7V to 3V 2

T

+25°C 2.434 2.440 2.443 V

A =

( N ote 3) -8 ±2 +10

= +25°C ±6

T

A

AVDD -

0.1 nF

0.2

LSB

ppm

FS/°C

V

MAX5134

Low-Power, Quad 16-Bit,

Buffered Voltage-Output DAC

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= 2.7V to 5.25V, V

DVDD

= 2.7V to 5.25V, V

AVDD

≥ V

DVDD

, V

GND

= 0, V

REFI

= V

AVDD

- 0.25V, C

OUT

= 200pF, R

OUT

= 10kΩ,

T

A

= T

MIN

to T

MAX

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

DAC OUTPUT VOLTAGE (Note 2)

Output Voltage Range No load 0.02

DC Output Impedance 0.1 Ω

Maximum Capacitive Load
(Note 5)

Resistive Load R

Short-Circuit Current I

Power-Up Time From power-down mode 25 µs

DIGITAL INPUTS (SCLK, DIN, CS, LDAC) (Note 6)

Input High Voltage V

Input Low Voltage V

Input Leakage Current I

Input Capacitance C

DIGITAL OUTPUTS (READY)

Output High Voltage V

Output Low Voltage V

DYNAMIC PERFORMANCE

Voltage-Output Slew Rate SR Positive and negative 1.25 V/µs

Voltage-Output Settling Time t

Digital Feedthrough Code 0, all digital inputs from 0 to DVDD 0.5 nV•s

Major Code Transition Analog
Glitch Impulse

Output Noise 10kHz 120 nV/√Hz

Integrated Output Noise 1Hz to 10kHz 18 µV

DAC-to-DAC Crosstalk 25 nV•s

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

C

SC

IN

OH

OL

Series resistance = 0 0.2 nF

L

Series resistance = 500Ω 15 µF

L

AVDD = 5.25V ±35

AVDD = 2.7V -40 ±20 +40

IH

IL

VIN = 0 or DVDD -1 ±0.1 +1 µA

IN

I

SOURCE

I

= 2mA 0.4 V

SINK

1/4 scale to 3/4 scale V

S

settle to ±2 LSB (Note 5)

= 3mA

= AVDD = 5V

REFI

2kΩ

0.7 x

DVDD

DVDD

- 0.5

5µs

12 nV•s

AVDD

- 0.02

0.3 x

DVDD

10 pF

V

mA

V

V

V

MAX5134

Low-Power, Quad 16-Bit,
Buffered Voltage-Output DAC

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= 2.7V to 5.25V, V

DVDD

= 2.7V to 5.25V, V

AVDD

≥ V

DVDD

, V

GND

= 0, V

REFI

= V

AVDD

- 0.25V, C

OUT

= 200pF, R

OUT

= 10kΩ,

T

A

= T

MIN

to T

MAX

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

Note 1: Static accuracy tested without load.
Note 2: Linearity is tested within 20mV of GND and AVDD

,

allowing for gain and offset error.

Note 3: Codes above 2047 are guaranteed to be within ±8 LSB

.

Note 4: Gain and offset tested within 100mV of GND and AVDD

.

Note 5: Guaranteed by design.
Note 6: Device draws current in excess of the specified supply current when a digital input is driven with a voltage of VI < DVDD - 0.6V

or VI > 0.5V. At VI = 2.2V with DVDD = 5.25V, this current can be as high as 2mA. The SPI inputs are CMOS-input level com­patible. The 30MHz clock frequency cannot be guaranteed for a minimum signal swing.

Note 7: Excess current from AVDD is 10mA when powered without DVDD. Excess current from DVDD is 1mA when powered without

AVDD.

Note 8: All timing specifications are with respect to the digital input and output thresholds.
Note 9: Maximum daisy-chain clock frequency is limited to 25MHz.

C7

C6

C5 D2

D1

D0

X

COMMAND EXECUTED ON

24TH FALLING EDGE OF SCLK

CS

SCLK

DIN

X = DON'T CARE.

t

CH

t

CL

t

CSS

t

DH

t

CSH

t

DS

t

SRL

READY

X

t

CSW

D3

Figure 1. Serial-Interface Timing Diagram

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER REQUIREMENTS (Note 7)

Analog Supply Voltage Range AVDD 2.7 5.25 V

Digital Supply Voltage Range DVDD 2.7 AVDD V

Supply Current

Power-Down Supply Current

I

AVDD

I

DVDD

I

AVPD

I

DVPD

No load, all digital inputs at 0 or DVDD

No load, all digital inputs at 0 or DVDD

2.5 3.6 mA

110µA

0.2 2

0.1 2

TIMING CHARACTERISTICS (Note 8) (Figure 1)

Serial-Clock Frequency f

SCLK Pulse-Width High t

SCLK Pulse-Width Low t
CS Fall-to-SCLK Fall Setup Time t
SCLK Fall-to CS-Rise Hold Time t

DIN-to-SCLK Fall Setup Time t

DIN-to-SCLK Fall Hold Time t
SCLK Fall to READY Transition t

CS Pulse-Width High t
LDAC Pulse Width t

LDACPWL

SCLK

CH

CL

CSS

CSH

DS

DH

SRL

CSW

(Note 9) 30 ns

0 30 MHz

13 ns

13 ns

8ns

5ns

10 ns

2ns

33 ns

33 ns

µA

MAX5134

Low-Power, Quad 16-Bit,

Buffered Voltage-Output DAC

_______________________________________________________________________________________ 5

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

9

6

3

0

INL (LSB)

-3

-6

-9
0 16384 32768

DIGITAL OUTPUT CODE (LSB)

49152 65536

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

1.0

0.8

0.6

0.4

0.2

0

DNL (LSB)

-0.2

-0.4

-0.6

-0.8

-1.0
16384 32768 49152 65536

0

DIGITAL OUTPUT CODE (LSB)

MAX5134 toc01

MAX5134 toc04

INTEGRAL NONLINEARITY

vs. ANALOG SUPPLY VOLTAGE

9

7

5

3

1

-1

INL (LSB)

-3

-5

-7

-9

2.7 3.7 4.73.2 4.2 5.2
AVDD ( V )

DIFFERENTIAL NONLINEARITY
vs. ANALOG SUPPLY VOLTAGE

1.0

0.8

0.6

0.4

0.2

0

DNL (LSB)

-0.2

-0.4

-0.6

-0.8

-1.0

2.7

3.2 4.2 5.2

3.7 4.7
AVDD ( V )

MAX5134 toc02

MAX5134 toc05

INTEGRAL NONLINEARITY

9

7

5

3

1

-1

INL (LSB)

-3

-5

-7

-9

-40 100-20 60 8040020

DIFFERENTIAL NONLINEARITY

1.0

0.8

0.6

0.4

0.2

0

DNL (LSB)

-0.2

-0.4

-0.6

-0.8

-1.0

-40

-20 0 20 40 60 80 100

vs. TEMPERATURE

MAX5134 toc03

TEMPERATURE (°C)

vs. TEMPERATURE

MAX5134 toc06

TEMPERATURE (°C)

OFFSET ERROR vs.

ANALOG SUPPLY VOLTAGE

10

8

6

4

2

0

-2

OFFSET ERROR (mV)

-4

-6

-8

-10

2.7 3.7 4.73.2 4.2 5.2
AVDD ( V )

-0.1

MAX5134 toc07

-0.2

-0.3

-0.4

OFFSET ERROR (mV)

-0.5

-0.6

OFFSET ERROR vs. TEMPERATURE

0

V

= 2.7V

AVDD

= 2.5V

V

REFI

V

= 5.25V

AVDD

= 5V

V

REFI

-40 20 80060-20 40 100
TEMPERATURE (°C)

0.5

0.4

MAX5134 toc08

0.3

0.2

0.1

-0.1

GAIN ERROR (%FS)

-0.2

-0.3

-0.4

-0.5

GAIN ERROR vs.

ANALOG SUPPLY VOLTAGE

MAX5134 toc09

0

2.7 3.7 4.73.2 4.2 5.2
AVDD ( V )

MAX5134

Low-Power, Quad 16-Bit,
Buffered Voltage-Output DAC

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

GAIN ERROR vs. TEMPERATURE

MAX5134 toc10

TEMPERATURE (°C)

GAIN ERROR (%FS)

-40 20 80060-20 40 100

0.070

0.080

0.076

0.082

0.078

0.072

0.074

0.084

0.086

V

AVDD

= 2.7V

V

AVDD

= 5.25V

SUPPLY CURRENT

vs. TEMPERATURE

MAX5134 toc11

TEMPERATURE (°C)

SUPPLY CURRENT (μA)

100806040200-20

500

1000

1500

2000

2500

0

-40

I

AVDD

I

DVDD

ANALOG SUPPLY CURRENT

vs. ANALOG SUPPLY VOLTAGE

MAX5134 toc12

SUPPLY VOLTAGE (V)

4.74.23.73.2

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

1500

2.7 5.2

V

OUT

= 0

V

OUT

= V

REFO

V

DVDD

= 2.7V

EXITING/ENTERING

POWER-DOWN MODE

MAX5134 toc14

4μs/div

CH1

CH0

500mV/div

500mV/div

MAJOR CODE TRANSITION

MAX5134 toc15

1μs/div

10mV/div

SETTLING TIME UP

MAX5134 toc16

400ns/div

500mV/div

SETTLING TIME DOWN

MAX5134 toc17

400ns/div

500mV/div

CROSSTALK

MAX5134 toc18

4μs/div

10mV/div

2V/div

SUPPLY CURRENT vs. SUPPLY VOLTAGE

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.15

SUPPLY CURRENT (µA)

0.10

0.05

0

(POWER-DOWN MODE)

TA = -40°C

TA = +105°C

TA = +25°C

2.7 5.2
SUPPLY VOLTAGE (V)

4.74.23.73.2

MAX5134 toc13