Rainbow Electronics MAX5144 User Manual

General Description

The MAX5141–MAX5144 are serial-input, voltage-output,
14-bit digital-to-analog converters (DACs) in tiny µMAX
packages, 50% smaller than comparable DACs in an
8-pin SO. They operate from low +3V (MAX5143/
MAX5144) or +5V (MAX5141/MAX5142) single supplies.
They provide 14-bit performance (±1LSB INL and DNL)
over temperature without any adjustments. The DAC out­put is unbuffered, resulting in a low supply current of
120µA and a low offset error of 2LSBs.

The DAC output range is 0V to V

REF.

For bipolar opera­tion, matched scaling resistors are provided in the
MAX5142/MAX5144 for use with an external precision op
amp (such as the MAX400), generating a ±V

REF

output

swing.
A 16-bit serial word is used to load data into the DAC

latch. The 25MHz, 3-wire serial interface is compatible
with SPI™/QSPI™/MICROWIRE™, and can interface
directly with optocouplers for applications requiring isola­tion. A power-on reset circuit clears the DAC output to
code 0 (MAX5141/MAX5143) or code 8192 (MAX5142/
MAX5144) when power is initially applied.

A logic low on CLR asynchronously clears the DAC out­put to code 0 (MAX5141/MAX5143) or code 8192
(MAX5142/MAX5144), independent of the serial interface.

The MAX5141/MAX5143 are available in 8-pin µMAX
packages and the MAX5142/MAX5144 are available in
10-pin µMAX packages.

Applications

High-Resolution and Gain Adjustment

Industrial Process Control

Automated Test Equipment

Data-Acquisition Systems

Features

♦ Miniature (3mm x 5mm) 8-Pin µMAX Package

♦ Low 120µA Supply Current

♦ Fast 1µs Settling Time

♦ 25MHz SPI/QSPI/MICROWIRE-Compatible Serial

Interface

♦ V

REF

Range Extends to V

DD

♦ +5V (MAX5141/MAX5142) or +3V

(MAX5143/MAX5144) Single-Supply Operation

♦ Full 14-Bit Performance Without Adjustments
♦ Unbuffered Voltage Output Directly Drives 60kΩ

Loads

♦ Power-On Reset Circuit Clears DAC Output to

Code 0 (MAX5141/MAX5143) or Code 8192
(MAX5142/MAX5144)

♦ Schmitt-Trigger Inputs for Direct Optocoupler

Interface

♦ Asynchronous CLR

MAX5141–MAX5144

+3V/+5V, Serial-Input,

Voltage-Output, 14-Bit DACs

________________________________________________________________ Maxim Integrated Products 1

19-1849; Rev 1; 5/01

Ordering Information

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.

Pin Configurations

TOP VIEW

REF

CS

SCLK

DIN

REF

SCLK

DIN

CLR

1

CS

2

MAX5142

3

MAX5144

4

5

µMAX

1

2

MAX5141
MAX5143

3

4

µMAX

GND

8

V

7

DD

OUT

6

5

CLR

GND

10

9

V

RFB

8

7

INV

OUT

6

DD

PART T EM P. RA N G E PIN - PAC K A GE IN L ( L SB )

M A X5 1 4 1E U A

M A X5 1 4 2E U B

M A X5 1 4 3E U A

M A X5 1 4 4E U B

-40°C to +85°C 8 µMAX ± 15 U nip ol ar

-40°C to +85°C 10 µMAX ± 15 Bi pol ar

-40°C to +85°C 8 µMAX ± 13 U nip ol ar

-40°C to +85°C 10 µMAX ± 13 Bi pol ar

SU PPL Y

R A NG E ( V)

O U TPU T SWING

MAX5141–MAX5144

+3V/+5V, Serial-Input,
Voltage-Output, 14-Bit DACs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V

REF

= +2.5V, TA= T

MIN

to T

MAX

, CL= 10pF, GND = 0, RL= ∞,

unless otherwise noted. Typical values are at T

A

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

CS, SCLK, DIN, CLR to GND ...................................-0.3V to +6V

REF to GND................................................-0.3V to (V

DD

+ 0.3V)

OUT, INV to GND .....................................................-0.3V to V

DD

RFB to INV ...................................................................-6V to +6V

RFB to GND.................................................................-6V to +6V

Maximum Current into Any Pin............................................50mA

Continuous Power Dissipation (T

A

= +70°C)

8-Pin µMAX (derate 4.5mW/°C above +70°C)...............362mW

10-Pin µMAX (derate 5.6mW/°C above +70°C).............444mW

Operating Temperature Ranges

MAX514_ EUA ...................................................-40°C to +85°C

MAX514_ EUB ...................................................-40°C to +85°C

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

Maximum Die Temperature..............................................+150°C

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

REFERENCE INPUT

STATIC PERFORMANCE—ANALOG SECTION

Integral Nonlinearity INL LSB±0.5 ±1MAX514_

+4.5V ≤ VDD≤ +5.5V (MAX5141/MAX5142) ±1

Power-Supply Rejection

+2.7V ≤ VDD≤ +3.3V (MAX5143/MAX5144) ±1

LSB

Ratio error

%

LSB

RFB/R

INV

Digital Feedthrough nV-s0.2

Code = 0000 hex; CS = VDD;
SCLK, DIN = 0V to V

DD

levels

DAC Glitch Impulse nV-s7Major-carry transition

Output Settling Time µs1

To ±1/2LSB of FS

DYNAMIC PERFORMANCE—ANALOG SECTION

Voltage-Output Slew Rate SR V/µs15(Note 5)

Bipolar Zero Offset Error

Guaranteed monotonic

LSBZSE

PARAMETER SYMBOL MIN TYP MAX UNITS

Zero-Code Offset Error ±2

Differential Nonlinearity DNL LSB

Zero-Code Tempco ZS

TC

±0.05 ppm/°C

±10Gain Error (Note 1) LSB

Gain-Error Tempco ±0.1 ppm/°C

Resolution N 14 Bits

±0.5 ±1

6.2 kΩDAC Output Resistance R

OUT

1

Bipolar Resistor Matching

±0.03

±20

Bipolar Zero Tempco BZS

TC

±0.5 ppm/°C

PSR

Reference Input Range V

REF

2.0 V

DD

V

10

Reference Input Resistance
(Note 4)

R

REF

6

kΩ

CONDITIONS

(Note 2)

(Note 3)

Unipolar mode

Bipolar mode

STATIC PERFORMANCE—ANALOG SECTION

MAX5141–MAX5144

+3V/+5V, Serial-Input,

Voltage-Output, 14-Bit DACs

_______________________________________________________________________________________ 3

TIMING CHARACTERISTICS

(VDD= +2.7V to +3.3V (MAX5143/MAX5144), VDD= +4.5V to +5.5V (MAX5141/MAX5142), V

REF

= +2.5V, GND = 0, CMOS inputs,

T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Figure 1)

Note 1: Gain error tested at V

REF

= +2.0V, +2.5V, and +3.0V (MAX5143/MAX5144) or V

REF

= +2.0V, +2.5V, +3.0V, and +5.0V

(MAX5141/MAX5142).

Note 2: R

OUT

tolerance is typically ±20%.

Note 3: Min/max range guaranteed by gain-error test. Operation outside min/max limits will result in degraded performance.
Note 4: Reference input resistance is code dependent, minimum at 2155 hex in unipolar mode, 1155 hex in bipolar mode.
Note 5: Slew-rate value is measured from 10% to 90%.
Note 6: Guaranteed by design. Not production tested.
Note 7: Guaranteed by power-supply rejection test and Timing Characteristics.

Code = 3FFF hex

All digital inputs at
VDDor GND

All digital inputs at VDDor GND

MAX5143/MAX5144

Code = 0000 hex, V

REF

= 1V

P-P

at 100kHz

Code = 0000 hex

Code = 3FFF hex

(Note 6)

CONDITIONS

mW

0.36

PDPower Dissipation

mA0.12 0.20I

DD

Positive Supply Current

V

2.7 3.6

V

DD

Positive Supply Range (Note 7)

V0.15V

H

Hysteresis Voltage

pF310C

IN

Input Capacitance

mV

P-P

1

MHz1BWReference -3dB Bandwidth

µA±1I

IN

Input Current

V0.8V

IL

Input Low Voltage

V2.4V

IH

Input High Voltage

Reference Feedthrough

dB92SNRSignal-to-Noise Ratio

70

pF

170

C

INREF

Reference Input Capacitance

UNITSMIN TYP MAXSYMBOLPARAMETER

(Note 6)

CONDITIONS

µs20

VDDHigh to CS Low
(Power-Up Delay)

ns20t

CL

SCLK Pulse Width Low

ns20t

CH

MHz25f

CLK

SCLK Frequency

SCLK Pulse Width High

ns20t

CLW

CLR Pulse Width Low

ns0t

DH

DIN to SCLK High Hold

ns15t

DS

DIN to SCLK High Setup

ns15t

CSS0

CS Low to SCLK High Setup

ns15t

CSS1

CS High to SCLK High Setup

ns35t

CSH0

SCLK High to CS Low Hold

ns20t

CSH1

SCLK High to CS High Hold

UNITSMIN TYP MAXSYMBOLPARAMETER

ELECTRICAL CHARACTERISTICS (continued)

(VDD= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V

REF

= +2.5V, TA= T

MIN

to T

MAX

, CL= 10pF, GND = 0, RL = ∞,

unless otherwise noted. Typical values are at T

A

= +25°C.)

0.60MAX5141/MAX5142

MAX5143/MAX5144

MAX5141/MAX5142 4.5 5.5

DYNAMIC PERFORMANCE—REFERENCE SECTION

STATIC PERFORMANCE—DIGITAL INPUTS

POWER SUPPLY

MAX5141–MAX5144

+3V/+5V, Serial-Input, Voltage-Output, 14-Bit
DACs

4 _______________________________________________________________________________________

Typical Operating Characteristics

(VDD= +3V (MAX5143/MAX5144) or +5V (MAX5141/MAX5142), V

REF

= +2.5V, TA= T

MIN

to T

MAX

, GND = 0, RL= ∞, unless otherwise

noted. Typical values are at T

A

= +25°C.)

0

0.050

0.025

0.100

0.075

0.125

0.150

-40 10-15 35 60 85

SUPPLY CURRENT vs. TEMPERATURE

MAX5141/44 toc01

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

VDD = +5V

VDD = +3V

0.05

0.07

0.06

0.09

0.08

0.11

0.10

0.12

0 1.0 1.50.5 2.0 2.5 3.0 3.5 4.5 5.0

SUPPLY CURRENT

vs. REFERENCE VOLTAGE

MAX5141/44 toc02

REFERENCE VOLTAGE (V)

SUPPLY CURRENT (mA)

4.0

VDD = +5V

0 1.0 1.50.5 2.0 2.5 3.0

0.05

0.07

0.06

0.09

0.08

0.11

0.10

0.12

SUPPLY CURRENT

vs. REFERENCE VOLTAGE

MAX5141/44 toc03

REFERENCE VOLTAGE (V)

SUPPLY CURRENT (mA)

VDD = +3V

-0.2

0

-0.1

0.2

0.1

0.3

0.4

-40 10-15 35 60 85

ZERO-CODE OFFSET ERROR

vs. TEMPERATURE

MAX5141 toc04

TEMPERATURE (°C)

OFFSET ERROR (LSB)

-0.30

-0.20

-0.25

-0.10

-0.15

-0.05

0

-40 10-15 35 60 85

GAIN ERROR vs. TEMPERATURE

MAX5141 toc07

TEMPERATURE (°C)

GAIN ERROR (LSB)

0.5

0.4

0.3

0.2

0.1

0.0

-0.1

-0.2

-0.3

-0.4

-0.5
0 2.50k 5.00k 7.50k 10.00k 12.50k 15.00k

DIFFERENTIAL NONLINEARITY vs. CODE

MAX5141 toc08

DNL (LSB)

CODE

1.0

0.8

0.6

0.4

0.2

0.0

-0.2

-0.4

-0.6

-0.8

-1.0

CODE

0 2.50k 5.00k 7.50k 10.00k 12.50k 15.00k

INTEGRAL NONLINEARITY vs. CODE

MAX5141 toc09

INL (LSB)

-0.4

0

-0.2

0.4

0.2

0.6

0.8

-40 10-15 35 60 85

INTEGRAL NONLINEARITY

vs. TEMPERATURE

MAX5141 toc05

TEMPERATURE (°C)

INL (LSB)

+INL

-INL

-0.4

-0.2

-0.3

0

-0.1

0.1

0.2

-40 10-15 35 60 85

DIFFERENTIAL NONLINEARITY

vs. TEMPERATURE

MAX5141 toc06

TEMPERATURE (°C)

DNL (LSB)

+DNL

-DNL