Rainbow Electronics MAX5515 User Manual

General Description

The MAX5512–MAX5515 are dual, 8-bit, ultra-low­power, voltage-output, digital-to-analog converters
(DACs) offering Rail-to-Rail®buffered voltage outputs.
The DACs operate from a 1.8V to 5.5V supply and con­sume less than 5µA, making the devices suitable for
low-power and low-voltage applications. A shutdown
mode reduces overall current, including the reference
input current, to just 0.18µA. The MAX5512–MAX5515
use a 3-wire serial interface that is compatible with
SPI™, QSPI™, and MICROWIRE™.

Upon power-up, the MAX5512–MAX5515 outputs are
driven to zero scale, providing additional safety for
applications that drive valves or for other transducers
that need to be off during power-up. The zero-scale
outputs enable glitch-free power-up.

The MAX5512 accepts an external reference input and
provides unity-gain outputs. The MAX5513 contains a
precision internal reference and provides a buffered
external reference output with unity-gain DAC outputs.
The MAX5514 accepts an external reference input and
provides force-sense outputs. The MAX5515 contains a
precision internal reference and provides a buffered
external reference output with force-sense DAC outputs.

The MAX5514/MAX5515 are available in a 4mm x 4mm
x 0.8mm, 12-pin, thin QFN package. The MAX5512/
MAX5513 are available in an 8-pin µMAX package. All
devices are guaranteed over the extended -40°C to
+85°C temperature range.

For 10-bit compatible devices, refer to the MAX5522–
MAX5525 data sheet. For 12-bit compatible devices,
refer to the MAX5532–MAX5535 data sheet.

Applications

Portable Battery-Powered Devices
Instrumentation
Automatic Trimming and Calibration in Factory

or Field
Programmable Voltage and Current Sources
Industrial Process Control and Remote

Industrial Devices
Remote Data Conversion and Monitoring
Chemical Sensor Cell Bias for Gas Monitors
Programmable LCD Bias

Features

♦ Ultra-Low 5µA Supply Current
♦ Shutdown Mode Reduces Supply Current to

0.18µA (max)

♦ Single +1.8V to +5.5V Supply
♦ Small 4mm x 4mm x 0.8mm Thin QFN Package
♦ Internal Reference Sources 8mA of Current

(MAX5513/MAX5515)

♦ Flexible Force-Sense-Configured Rail-to-Rail

Output Buffers

♦ Fast 16MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-

Compatible Serial Interface

♦ TTL- and CMOS-Compatible Digital Inputs with

Hysteresis

♦ Glitch-Free Outputs During Power-Up

MAX5512–MAX5515

Dual, Ultra-Low-Power,

8-Bit, Voltage-Output DACs

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3066; Rev 0; 1/04

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.

* EP = Exposed paddle (internally connected to GND).

Pin Configurations continued at end of data sheet.

Rail-to-Rail is a registered trademark of Nippon Motorola, Inc.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.

Selector Guide

Pin Configurations

PART TEMP RANGE PIN-PACKAGE

MAX5512EUA -40°C to +85°C 8 µMAX
MAX5513EUA -40°C to +85°C 8 µMAX
MAX5514ETC -40°C to +85°C 12 Thin QFN-EP*
MAX5515ETC -40°C to +85°C 12 Thin QFN-EP*

PART OUTPUTS REFERENCE TOP MARK

MAX5512EUA Unity gain External —
MAX5513EUA Unity gain Internal —
MAX5514ETC Force sense External AACI
MAX5515ETC Force sense Internal AACJ

TOP VIEW

CS

SCLK

DIN

REFOUT(MAX5513)

1
2
3
4

MAX5512
MAX5513

µMAX

8

OUTA

7

GND

6

V

DD

OUTBREFIN(MAX5512)

5

MAX5512–MAX5515

Dual, Ultra-Low-Power,
8-Bit, Voltage-Output DACs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

DD

= +1.8V to +5.5V, OUT_ unloaded, 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 GND..............................................................-0.3V to +6V

OUTA, OUTB to GND.................................-0.3V to (V

DD

+ 0.3V)

FBA, FBB to GND.......................................-0.3V to (V

DD

+ 0.3V)

SCLK, DIN, CS to GND ..............................-0.3V to (V

DD

+ 0.3V)

REFIN, REFOUT to GND ............................-0.3V to (V

DD

+ 0.3V)

Continuous Power Dissipation (T

A

= +70°C)

12-Pin Thin QFN (derate 16.9mW/°C above +70°C).....1349mW

8-Pin µMAX (derate 5.9mW/°C above +70°C) .............471mW

Operating Temperature Range ...........................-40°C to +85°C

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

Junction Temperature......................................................+150°C

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

STATIC ACCURACY (MAX5512/MAX5514 EXTERNAL REFERENCE)

Resolution N 8 Bits

Integral Nonlinearity (Note 1) INL

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Differential Nonlinearity (Note 1) DNL

Offset Error (Note 2) V

Offset-Error Temperature Drift ±2 µV/°C

Gain Error (Note 3) GE

Gain-Error Temperature
Power-Supply Rejection Ratio PSRR 1.8V ≤ VDD ≤ 5.5V 85 dB

STATIC ACCURACY (MAX5513/MAX5515 INTERNAL REFERENCE)

Resolution N 8 Bits

Integral Nonlinearity (Note 1) INL

Differential Nonlinearity (Note 1) DNL

Offset Error (Note 2) V

Offset-Error Temperature Drift ±2 µV/°C

Gain Error (Note 3) GE

Gain-Error Temperature
Coefficient

Power-Supply Rejection Ratio PSRR 1.8V ≤ VDD ≤ 5.5V 85 dB

OS

OS

VDD = 5V, V
V

DD

Guaranteed monotonic, VDD = 5V,
V

REF

Guaranteed monotonic, V
V

REF

VDD = 5V, V
VDD = 1.8V, V

VDD = 5V, V
V

DD

VDD = 5V, V
V

DD

Guaranteed monotonic, VDD = 5V,
V

REF

Guaranteed monotonic, V
V

REF

VDD = 5V, V
VDD = 1.8V, V

VDD = 5V, V
V

DD

= 4.096V ±0.25 ±1

REF

= 1.8V, V

= 4.096V

= 1.024V

= 1.8V, V

= 1.8V, V

= 3.9V

= 1.2V

= 1.8V, V

= 1.024V ±0.25 ±1

REF

DD

= 4.096V ±1 ±20

REF

= 1.024V ±1 ±20

REF

= 4.096V ±0.5 ±1

REF

= 1.024V ±0.5 ±1

REF

= 3.9V ±0.25 ±1

REF

= 1.2V ±0.25 ±1

REF

DD

= 3.9V ±1 ±20

REF

= 1.2V ±1 ±20

REF

= 3.9V ±0.5 ±1

REF

= 1.2V ±0.5 ±1

REF

= 1.8V,

= 1.8V,

±0.2 ±1

±0.2 ±1

±4 ppm/°C

±0.2 ±1

±0.2 ±1

±4 ppm/°C

LSB

LSB

mV

LSB

LSB

LSB

mV

LSB

MAX5512–MAX5515

Dual, Ultra-Low-Power,

8-Bit, Voltage-Output DACs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

DD

= +1.8V to +5.5V, OUT_ unloaded, TA= T

MIN

to T

MAX

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

REFERENCE INPUT (MAX5512/MAX5514)

Reference-Input Voltage Range V

Reference-Input Impedance R

REFERENCE OUTPUT (MAX5513/MAX5515)

Initial Accuracy V

Output-Voltage Temperature
Coefficient (Note 4)

Line Regulation V

Load Regulation

Output Noise Voltage

Short-Circuit Current (Note 6)

C ap aci ti ve Load S tab i l i ty Rang e( N ote 7) 0 to 10 nF
Thermal Hysteresis (Note 8) 200 ppm

Reference Power-Up Time
(from Shutdown)

Long-Term Stability 200

DAC OUTPUTS (OUTA, OUTB)

Capacitive Driving Capability C

Short-Circuit Current (Note 6)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

REFIN

REFIN

REFOUT

V

TEMPCOTA

L

Normal operation 4.1 MΩ
In shutdown 2.5 GΩ

No external load, VDD = 1.8V 1.197 1.214 1.231
No external load, VDD = 2.5V 1.913 1.940 1.967
No external load, VDD = 3V 2.391 2.425 2.459
No external load, VDD = 5V 3.828 3.885 3.941

0 ≤ I
V

0 ≤ I
V

-150µA ≤ I

0.1Hz to 10Hz, V
10Hz to 10kHz, V

0.1Hz to 10Hz, V
10Hz to 10kHz, V
V
V

REFOUT unloaded, VDD = 5V 5.4
REFOUT unloaded, V

VDD = 5V, V
shorted to GND, source current

VDD = 5V, V
OUT shorted to V

V
shor ted to G N D , sour ce cur r ent

V
OUT shorted to V

0V

= -40°C to +85°C 12 30 ppm/°C

< VDD - 200mV (Note 5) 12 200 µV/V

REFOUT

≤ 1mA, sourcing, VDD = 1.8V,

REFOUT

= 1.2V

REF

≤ 8mA, sourcing, VDD = 5V,

REFOUT

= 3.9V

REF

≤ 0, sinking 0.2

REFOUT

= 3.9V 150

REF

= 3.9V 600

REF

= 1.2V 50

REF

= 1.2V 450

REF

= 5V 30

DD

= 1.8V 14

DD

= 1.8V 4.4

DD

set to full scale, OUT

OUT

set to 0V,

OUT

, sink current

DD

= 1.8V , V

D D

= 1.8V, VOUT set to 0V,

DD

set to ful l scal e, OU T

OU T

, sink current

DD

0.3 2

0.3 2

1000 pF

DD

65

65

14

14

µV/µA

µV

ppm/
1khrs

V

V

P-P

mA

ms

mA

MAX5512–MAX5515

Dual, Ultra-Low-Power,
8-Bit, Voltage-Output DACs

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

DD

= +1.8V to +5.5V, OUT_ unloaded, TA= T

MIN

to T

MAX

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

DAC Power-Up Time

Output Power-Up Glitch CL = 100pF 10 mV
FB_ Input Current 10 pA

DIGITAL INPUTS (SCLK, DIN, CS)

Input High Voltage V

Input Leakage Current I
Input Capacitance C

DYNAMIC PERFORMANCE

Voltage-Output Slew Rate SR Positive and negative (Note 10) 10 V/ms

Voltage-Output Settling Time

Output Noise Voltage

POWER REQUIREMENTS

Supply Voltage Range V

Supply Current (Note 9) I

Standby Supply Current I

Shutdown Supply Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

IH

IL

IN

IN

DD

DD

DDSD

DDPD

C omi ng out of shutdow n
(MAX5512/MAX5514)

C omi ng out of standb y
(MAX5513/MAX5515)

4.5V ≤ VDD ≤ 5.5V 2.4

2.7V < VDD ≤ 3.6V 2.0

1.8V ≤ VDD ≤ 2.7V 0.7 x V

4.5V ≤ VDD ≤ 5.5V 0.8

2.7V < VDD ≤ 3.6V 0.6Input Low Voltage V

1.8V ≤ VDD ≤ 2.7V 0.3 x V
(Note 9) ±0.05 ±0.5 µA

0.1 to 0.9 of full scale to within 0.5 LSB
(Note 10)

0.1Hz to 10Hz

10Hz to 10kHz

MAX5512/MAX5514

MAX5513/MAX5515
(Note 9)

(Note 9) 0.05 0.25 µA

V

= 5V 3

DD

= 1.8V 3.8

V

DD

V

= 1.8V to

DD

V

= 5V

DD

V

= 5V 80

DD

V

= 1.8V 55

DD

V

= 5V 620

DD

= 1.8V 476

V

DD

1.8 5.5 V

V

= 5V 7.0 8.0

DD

V

= 3V 6.4 8.0MAX5513/MAX5515

DD

V

= 1.8V 7.0 8.0

DD

V

= 5V 3.8 5.0

DD

V

= 3V 3.8 5.0

DD

= 1.8V 4.7 6.0

V

DD

V

= 5V 3.3 4.5

DD

V

= 3V 2.8 4.0

DD

V

= 1.8V 2.4 3.5

DD

0.4

DD

10 pF

660 µs

DD

µV

ms

V

V

P-P

µA

µA

MAX5512–MAX5515

Dual, Ultra-Low-Power,

8-Bit, Voltage-Output DACs

_______________________________________________________________________________________ 5

Note 1: Linearity is tested within codes 6 to 255.
Note 2: Offset is tested at code 6.
Note 3: Gain is tested at code 255. For the MAX5514/MAX5515, FB_ is connected to its respective OUT_.
Note 4: Guaranteed by design. Not production tested.
Note 5: V

DD

must be a minimum of 1.8V.

Note 6: Outputs can be shorted to V

DD

or GND indefinitely, provided that package power dissipation is not exceeded.

Note 7: Optimal noise performance is at 2nF load capacitance.
Note 8: Thermal hysteresis is defined as the change in the initial +25°C output voltage after cycling the device from T

MAX

to T

MIN

.

Note 9: All digital inputs at V

DD

or GND.

Note 10: Load = 10kΩ in parallel with 100pF, V

DD

= 5V, V

REF

= 4.096V (MAX5512/MAX5514) or V

REF

= 3.9V (MAX5513/MAX5515).

TIMING CHARACTERISTICS

(VDD= +4.5V to +5.5V, TA= T

MIN

to T

MAX

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

TIMING CHARACTERISTICS

(V

DD

= +1.8V to +5.5V, TA= T

MIN

to T

MAX

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

TIMING CHARACTERISTICS (VDD = 4.5V to 5.5V )

Serial Clock Frequency f
DIN to SCLK Rise Setup Time t
DIN to SCLK Rise Hold Time t
SCLK Pulse-Width High t
SCLK Pulse-Width Low t
CS Pulse-Width High t
SCLK Rise to CS Rise Hold Time t
CS Fall to SCLK Rise Setup Time t
SCLK Fall to CS Fall Setup t
CS Rise to SCK Rise Hold Time t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCLK

DS
DH
CH

CL
CSW
CSH

CSS

CSO

CS1

TIMING CHARACTERISTICS (VDD = 1.8V to 5.5V )

Serial Clock Frequency f
DIN to SCLK Rise Setup Time t
DIN to SCLK Rise Hold Time t
SCLK Pulse-Width High t
SCLK Pulse-Width Low t
CS Pulse-Width High t
SCLK Rise to CS Rise Hold Time t
CS Fall to SCLK Rise Setup Time t
SCLK Fall to CS Fall Setup t
CS Rise to SCK Rise Hold Time t

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCLK

DS

DH

CH

CL
CSW

CSH
CSS

CSO

CS1

0 16.7 MHz

15 ns

0ns
24 ns
24 ns

100 ns

0ns
20 ns

0ns
20 ns

010MHz
24 ns

0ns
40 ns
40 ns

150 ns

0ns
30 ns

0ns
30 ns

MAX5512–MAX5515

Dual, Ultra-Low-Power,
8-Bit, Voltage-Output DACs

6 _______________________________________________________________________________________

Typical Operating Characteristics

(VDD= 5.0V, V

REF

= 4.096V (MAX5512/MAX5514), V

REF

= 3.9V (MAX5513/MAX5515), TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(MAX5512/MAX5514)

MAX5512 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

5.55.04.0 4.52.5 3.0 3.52.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0

1.5 6.0

SUPPLY CURRENT vs. TEMPERATURE

(MAX5512/MAX5514)

MAX5512 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0

-40 85

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(MAX5513/MAX5515)

MAX5512 toc03

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

5.55.04.0 4.52.5 3.0 3.52.0

1

2

3

4

5

6

7

8

9

10

0

1.5 6.0

SUPPLY CURRENT vs. TEMPERATURE

(MAX5513/MAX5515)

MAX5512 toc04

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

603510-15

1

2

3

4

5

6

7

8

9

10

0

-40 85

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE (MAX5512/MAX5514)

MAX5512 toc05

TEMPERATURE (°C)

SHUTDOWN SUPPLY CURRENT (nA)

603510-15

1

10

100

1000

0.1

-40 85

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE (MAX5513/MAX5515)

MAX5512 toc06

TEMPERATURE (°C)

SHUTDOWN SUPPLY CURRENT (nA)

603510-15

1

10

100

1000

0.1

-40 85

STANDBY SUPPLY CURRENT

vs. TEMPERATURE (MAX5513/MAX5515)

MAX5512 toc07

TEMPERATURE (°C)

STANDBY SUPPLY CURRENT (µA)

603510-15

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0

-40 85

V

REF

= 3.9V

V

REF

= 2.4V

V

REF

= 1.9V

V

REF

= 1.219V

SUPPLY CURRENT

vs. CLOCK FREQUENCY

MAX5512 toc08

FREQUENCY (kHz)

SUPPLY CURRENT (µA)

1000010001001010.1

10

100

1000

1

0.01 100000

CS = LOGIC LOW
CODE = 0

VDD = 5V

VDD = 1.8V

SUPPLY CURRENT

vs. LOGIC INPUT VOLTAGE

MAX5512 toc09

LOGIC INPUT VOLTAGE (V)

SUPPLY CURRENT (mA)

4.54.03.0 3.51.0 1.5 2.0 2.50.5

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

0

05.0

VDD = 5V
ALL DIGITAL INPUTS
SHORTED TOGETHER

MAX5512–MAX5515

Dual, Ultra-Low-Power,

8-Bit, Voltage-Output DACs

_______________________________________________________________________________________ 7

Typical Operating Characteristics (continued)

(VDD= 5.0V, V

REF

= 4.096V (MAX5512/MAX5514), V

REF

= 3.9V (MAX5513/MAX5515), TA = +25°C, unless otherwise noted.)

INL vs. INPUT CODE

= V

REF

= 1.8V)

(V

0.10

0.05

0

-0.05

-0.10

INL (LSB)

-0.15

-0.20

-0.25

-0.30
0 300

DD

DIGITAL INPUT CODE

DNL vs. INPUT CODE

= V

REF

= 5V)

(V

0.04

0.03

0.02

0.01

DNL (LSB)

0

-0.01

-0.02

-0.03
0 300

DD

DIGITAL INPUT CODE

DIGITAL FEEDTHROUGH RESPONSE

ZERO SCALE

20µs/div

25020050 100 150

25020015010050

MAX5512 toc16

MAX5512 toc10

MAX5512 toc13

CS
5V/div

SCLK
5V/div

DIN
5V/div

OUT
50mV/div

INL vs. INPUT CODE

= V

REF

= 5V)

0.014

0.012

MAX5512 toc11

0.010

0.008

0.006

0.004

DNL (LSB)

0.002
0

-0.002

-0.004

-0.006

25020050 100 150

0300

(V

0.10

0.05

0

-0.05

-0.10

INL (LSB)

-0.15

-0.20

-0.25

-0.30
0300

DD

DIGITAL INPUT CODE

OFFSET VOLTAGE vs. TEMPERATURE

1.0

VDD = 5V

0.8

= 3.9V

V

REF

0.6

0.4

0.2

0

-0.2

OFFSET VOLTAGE (mV)

-0.4

-0.6

-0.8

-1.0

-40 85
TEMPERATURE (°C)

603510-15

0.025

0.020

MAX5512 toc14

0.015

0.010

0.005
0

-0.005

-0.010

GAIN ERROR CHANGE (LSB)

-0.015

-0.020

-0.025

-40 85

DAC OUTPUT LOAD REGULATION

vs. OUTPUT CURRENT

0.6050
VDD = 1.8V

0.6048

0.6046

0.6044

DAC OUTPUT VOLTAGE (V)

0.6042

0.6040

DAC CODE = MIDSCALE

= 1.2V

V

REF

-1000 1000
DAC OUTPUT CURRENT (µA)

8006004002000-200-400-600-800

1.9440

1.9435

MAX5512 toc17

1.9430

1.9425

1.9420

1.9415

DAC OUTPUT VOLTAGE (V)

1.9410

1.9405

1.9400

-10 10

DNL vs. INPUT CODE

= V

REF

= 1.8V)

(V

DD

DIGITAL INPUT CODE

GAIN ERROR CHANGE

vs. TEMPERATURE

VDD = 5V

= 3.9V

V

REF

TEMPERATURE (°C)

DAC OUTPUT LOAD REGULATION

vs. OUTPUT CURRENT

VDD = 5.0V
DAC CODE = MIDSCALE

= 3.9V

V

REF

DAC OUTPUT CURRENT (mA)

25020015010050

603510-15

MAX5512 toc12

MAX5512 toc15

MAX5512 toc18

86-8 -6 -4 0 2-2 4