Rainbow Electronics MAX5106 User Manual

General Description

The MAX5105/MAX5106 nonvolatile, quad, 8-bit digital­to-analog converters (DACs) operate from a single
+2.7V to +5.5V supply. An internal EEPROM stores the
DAC states even after power is removed. Data from
these nonvolatile registers automatically initialize the
DAC outputs and operating states during power-up.
Precision internal buffers swing Rail-to-Rail®, and the
reference input range includes both ground and the
positive rail.

The MAX5105/MAX5106 feature a software-controlled
10µA shutdown mode and a mute state that drives the
DAC outputs to their respective REFL_ voltages. The
MAX5105 includes an asynchronous MUTE input, as
well as a RDY/BSY output that indicates the status of
the nonvolatile memory.

The MAX5105 is available in a 20-pin QSOP and 20-pin
wide SO packages, and the MAX5106 is available in a
16-pin QSOP package.

________________________Applications

Digital Gain and Offset Adjustments

Programmable Attenuators

Portable Instruments

Power-Amp Bias Control

Features

♦ On-Chip EEPROM Stores DAC States

♦ Power-On Reset Initialization of All Registers to

Prestored States

♦ +2.7V to +5.5V Single-Supply Operation

♦ Four 8-Bit DACs with Independent High and Low

Reference Inputs (MAX5105)

♦ Ground to V

DD

Reference Input Range

♦ Rail-to-Rail Output Buffers

♦ Low 1mA Supply Current

♦ Low Power 10µA (max) Shutdown Mode

♦ Small 20- or 16-Pin QSOP Package

♦ SPI™/QSPI™/MICROWIRE™-Compatible Serial

Interface

♦ Asynchronous MUTE Input (MAX5105)
♦ RDY/BSY Pin to Indicate Memory Status

(MAX5105)

♦ Wide Operating Temperature Range

(-40°C to +85°C)

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

Pin Configurations

19-1925; Rev 1; 6/01

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.

Functional Diagram appears at end of data sheet.

Rail-to-Rail is a trademark of Nippon Motorola, Ltd.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

PART TEMP RANGE PIN-PACKAGE

MAX5105EEP -40°C to +85°C 20 QSOP
MAX5105EWP -40°C to +85°C 20 SO
MAX5106EEE -40°C to +85°C 16 QSOP

TOP VIEW

REFH1

1

REFH0

2

3

V

DD

4

CLK

CS

DIN

MUTE

MAX5105

5

6

7

8

9

10

20 QSOP/SOIC

20

REFH2

19

REFH3

18

OUT0

17

OUT1RDY/BSY

16

OUT2

15

OUT3

14

REFL3

REFL2DOUT

13

12

REFL1

11

REFL0GND

1

REFH1 REFH2

REFH0

2

V

3

DD

MAX5106

4

CLK

CS

5

DIN

6

DOUT

7

GND

8

16 QSOP

16

15

REFH3

14

OUT0

13

OUT1

12

OUT2

OUT3

11

10

REFL1

9

REFL0

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD= V

REFH_

= +2.7V to +5.5V, GND = V

REFL_

= 0, CL= 100pF, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

DD

= +3V and 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.

VDD, DIN, CS, CLK, MUTE to GND .............................-0.3V, +6V

DOUT, REFH_, REFL_, RDY/BSY,

OUT_ to GND .........................................-0.3V to (V

DD

+ 0.3V)

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

Continuous Power Dissipation (TA= +70°C)

16-Pin QSOP (derate 8.3mW/°C above +70°C)........666.7mW

20-Pin QSOP (derate 9.1mW/°C above +70°C)........727.3mW

20-Pin SO (derate 10mW/°C above +70°C).................800mW

Operating Temperature Range

MAX510_ .........................................................-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

Resolution 8 Bits

Integral Nonlinearity INL

Differential Nonlinearity
(Note 1)

Zero-Code Error ZCE Code = 0Ahex ±20 mV

Zero-Code Temperature
Coefficient

Gain Error (Note 2) Code = F0hex ±1 LSB

Gain-Error Temperature
Coefficient

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

DNL

Code range 10hex to F0hex,
I

= 50µA

LOAD

Full code range, I

Code range 10hex to F0hex,

= 50µA

I

LOAD

Full code range, I

Code = 0Ahex ±20 µV/°C

Code = F0hex ±0.002 LSB/°C

= 50µA ±2

LOAD

= 50µA ±1

LOAD

±1

±0.5

LSB

LSB

REFL

DD

_ = 0,

= 2.7V

±1 LSB/V

0V

(V

REFH

V

REFL

_

REFL

x

(N/256)

+ V

REFL

DD

­)

_

V

V

Code = 0Ahex and FFhex, V

REFH

_ = 2.5V, V

= 0 V

LOAD

_,

_

to 5.5V, V
I

= 50µA

LOAD

Power-Supply Rejection Ratio PSRR

REFERENCE INPUT

V

Reference Input Voltage Range

Input Resistance 92 256 413 kΩ
Input Resistance Matching ±0.2 ±1%

Input Capacitance 10 pF

DAC OUTPUTS

Output Voltage Range N = input code, I

REFH

V

REFL

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

________________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VDD= V

REFH_

= +2.7V to +5.5V, GND = V

REFL_

= 0, CL= 100pF, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

DD

= +3V and TA= +25°C.)

Output Current (Note 3) ∆V

Amplifier Output Resistance
(Note 3)

DIGITAL INPUTS

Input High Voltage V

Input Low Voltage V

Input Current I

Input Capacitance C

DIGITAL OUTPUTS

Output High Voltage V

Output Low Voltage V

Three-State Leakage Current I

Three-State Output Capacitance C

DYNAMIC PERFORMANCE

CLK to OUT_ Settling Time
(Note 4)

Channel-to-Channel Crosstalk
(Note 5)

Signal to Noise Plus Distortion SINAD

Multiplying Bandwidth V

Reference Feedthrough

Clock Feedthrough 4 nV - s
DAC Output White Noise 75 nV/√Hz

Shutdown Recovery Time t

Time to Shutdown t

POWER SUPPLIES

Supply Voltage V

Supply Current I

Shutdown Current 0.5 10 µA

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

_< 1LSB ±1.0 mA

OUT

3 Ω

IH

IL

IN

IN

OH

OL

LEAK

OUT

t

COS

SDR

SHDN

DD

DD

VIN = 0 or V

I

SOURCE

I

SINK

DD

= 0.4mA

= 1mA 0.4 V

VDD = +5V, code = Ffhex,
V

_ = 2.5Vp-p at 10kHz

REFH

V

_ = 2.5Vp-p at

REFH

V

= +5V,

DD

code = FFhex

1kHz

V

REFH

_ = 2.5Vp-p at

10kHz

_ = 0.5Vp-p, 3dB bandwidth 250 kHz

REFH

V

= +5V, code = 00hex,

DD

V

_ = 2.5Vp-p at 1kHz

REFH

I

= 0, digital inputs at GND or V

LOAD

DD

During nonvolatile write operation 20

0.7 x
V

DD

0.8 V

±10 µA

10 pF

V

DD

- 0.3

±10 µA

15 pF

6 µs

85 dB

58

56

86 dB

7 µs
2 µs

2.7 5.5 V

0.8 1.0

V

V

dB

mA

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(VDD= V

REFH_

= +2.7V to +5.5V, GND = V

REFL_

= 0, CL= 100pF, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

DD

= +3V and TA= +25°C.)

Note 1: Guaranteed monotonic.
Note 2: Gain error is: [100 x (V

F0(MEAS)

- ZCE - V

F0(IDEAL)

)/V

REFH

]; where V

F0(MEAS)

is the DAC output voltage with input code

F0hex. V

F0(IDEAL)

is the ideal DAC output voltage with input code F0hex (i.e., (V

REFH

- V

REFL

) × 240/256 + V

REFL

).

Note 3: In the voltage range, 0.5V < V

OUT

_ < V

DD

- 0.5V.

Note 4: Output settling time is measured from the 50% point of the rising edge of last CLK to 1/2LSB of V

OUT

’s final value for a code

transition from 10hex to F0hex. See Figure 4.

Note 5: Channel-to-channel crosstalk is defined as the coupling from one driven reference with input code = FFhex to any other

DAC output with the reference of that DAC at a constant value and input code = 00hex.

DIGITAL TIMING

CLK Period t

CLK High Time t

CLK Low Time t

CS High Time t
CS Setup Time t
CS Hold Time t

DIN Setup Time t

DIN Hold Time t

CLK to DOUT Valid Time t

CLK to DOUT Propagation Delay t

DOUT Disable Time t

Nonvolatile Store Time t

NONVOLATILE MEMORY RELIABILITY

Data Retention MIL STD-883 Test Method 1008 100 Years

Endurance MIL STD-883 Test Method 1033 100,000 Stores

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CP

CH

CL

CSHT

CSS

CSH

DS

DH

CDV

CD

CSD

BUSY

C

= 100pF 1 µs

LOAD

C

= 100pF 1 µs

LOAD

C

= 100pF 250 ns

LOAD

1 µs

300 ns

300 ns

150 ns

100 ns

0ns

100 ns

0ns

13 ms

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

________________________________________________________________________________________ 5

Typical Operating Characteristics

(RL= ∞, code = FFhex, V

REFL_

= GND, TA= +25°C, unless otherwise noted.)

DAC ZERO-CODE OUTPUT VOLTAGE

vs. OUTPUT SINK CURRENT

0.5

0.4

VDD = +3V

= +0.2V

V

0.3

REFL_

0.2

OUTPUT VOLTAGE (V)

0.1

0

0426810

OUTPUT CURRENT (mA)

VDD = +5V

= +0.2V

V

REFL_

CODE = 00hex

SUPPLY CURRENT

vs. REFERENCE VOLTAGE

1000

900

800

700

600

500

400

300

SUPPLY CURRENT (µA)

CODE = 00hex

200

100

0

0.0 1.00.5 1.5 2.0 2.5 3.0
REFERENCE VOLTAGE (V)

CODE = FFhex

VDD = +3V

THD + NOISE AT DAC OUTPUT

vs. REFERENCE AMPLITUDE

0

-10

-20

-30

-40

-50

THD + NOISE (dB)

-60

-70

-80
012345

REFERENCE AMPLITUDE (Vp-p)

V

= SINE-WAVE

REF

= +5.0V

V

DD

CENTERED AT 2.5V
DAC CODE = FFhex
80kHz LOWPASS FILTER

f

= 10kHz

VREF

f

VREF

= 1kHz

MAX5105/06 toc01

OUTPUT VOLTAGE (V)

1000

900

800

MAX5105/06 toc04

700

600

500

400

300

SUPPLY CURRENT (µA)

200

100

-10

MAX5105/06 toc07

-20

-30

-40

THD + NOISE (dB)

-50

-60

-70

DAC FULL-SCALE OUTPUT VOLTAGE

vs. OUTPUT SOURCE CURRENT

6

VDD = V

5

4

VDD = V

3

2

1

0

0426810

CODE = 00hex

0

021345

0

V

10 1k 10k100 100k

= +5V

REFH_

= +3V

REFH_

OUTPUT CURRENT (mA)

SUPPLY CURRENT

vs. REFERENCE VOLTAGE

CODE = FFhex

REFERENCE VOLTAGE (V)

THD + NOISE AT DAC OUTPUT

vs. REFERENCE FREQUENCY

V

= SINE-WAVE

REF

= +3.0V

V

DD

CENTERED AT 1.5V
DAC CODE = FFhex
500kHz LOWPASS FILTER

= 0.5Vp-p

REF

V

REF

FREQUENCY (Hz)

= 1Vp-p

VDD = +5V

V

= 2Vp-p

REF

MAX5105/06 toc02

MAX5105/06 toc05

MAX5105/06 toc08

SUPPLY CURRENT vs. TEMPERATURE

700

650

600

VDD = +5V

550

500

450

SUPPLY CURRENT (µA)

400

350

300

= +4.096V

V

REFH_

VDD = +3V
V

REFH_

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

THD + NOISE AT DAC OUTPUT

vs. REFERENCE AMPLITUDE

0

-10

-20

-30

-40

THD + NOISE (dB)

-50

-60

-70

0.0 1.0 1.50.5 2.0 2.5 3.0
REFERENCE AMPLITUDE (Vp-p)

f

VREF

= 10kHz

V

= SINE-WAVE

REF

= +3.0V

V

DD

CENTERED AT 1.5V
DAC CODE = FFhex
80kHz LOWPASS FILTER

THD + NOISE AT DAC OUTPUT

vs. REFERENCE FREQUENCY

0

-10

-20

-30

-40
V

= 1Vp-p

REF

THD + NOISE (dB)

-50

-60

-70

10 1k 10k100 100k

V

= SINE-WAVE

REF

= +5.0V

V

DD

CENTERED AT 2.5V
DAC CODE = FFhex
500kHz LOWPASS FILTER

V

= 2.5Vp-p

REF

FREQUENCY (Hz)

V

= +2.5V

f

VREF

= 2Vp-p

REF

MAX5105/06 toc03

MAX5105/06 toc06

= 1kHz

MAX5105/06 toc09

MAX5105/MAX5106

Nonvolatile, Quad, 8-Bit DACs

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(RL= ∞, code = FFhex, V

REFL_

= GND, TA= +25°C, unless otherwise noted.)

1 10k 1M10010 1k 100k 10M 100M

REFERENCE INPUT FREQUENCY

RESPONSE

MAX5105/06 toc10

FREQUENCY (Hz)

RELATIVE OUTPUT (dB)

-45

-10

-5

0

5

-15

-20

-25

-30

-35

-40

V

REF

= 0.5Vp-p SINE-WAVE
CENTERED AT +2.5V
DAC CODE = FFhex
V

DD

= +5.0V

1 10k 1M10010 1k 100k 10M 100M

REFERENCE FEEDTHROUGH

vs. FREQUENCY

MAX5105/06 toc11

FREQUENCY (Hz)

RELATIVE OUTPUT (dB)

-50

-40

-30

-20

-60

-70

-80

-90

-100

V

REF

= 2.5Vp-p SINE-WAVE
CENTERED AT +2.5V
DAC CODE = FFhex
V

DD

= +5V

1 10k 1M10010 1k 100k 10M 100M

CROSSTALK

vs. FREQUENCY

MAX5105/06 toc12

FREQUENCY (Hz)

RELATIVE OUTPUT (dB)

-50

-40

-30

-20

-60

-70

-80

-90

-100

V

REH0

= 3Vp-p SINE-WAVE
CENTERED AT +2.5V
DAC0 CODE = FFhex
V

REFH1

= GND
DAC1 CODE = 00hex
V

DD

= +5V

1.0

µs/div

1LSB DIGITAL STEP-CHANGE

(NEGATIVE)

CS

0

3V

50mV/div

MAX5105/06 toc13

OUT1

VDD = +3.0V
V

REFH1

= +2.5V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 80 HEX TO 7F HEX
R

L

= 10kΩ

1.0 µs/div

1LSB DIGITAL STEP-CHANGE

(NEGATIVE)

CS

0

5V

50mV/div

MAX5105/06 toc14

OUT1

VDD = +5.0V
V

REFH1

= +4.096V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 80 HEX TO 7F HEX
R

L

= 10kΩ

1.0 µs/div

1LSB DIGITAL STEP-CHANGE

(POSITIVE)

CS

0

5V

50mV/div

MAX5105/06 toc16

OUT1

VDD = +5.0V
V

REFH1

= +4.096V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 7F HEX TO 80 HEX
R

L

= 10kΩ

1.0 µs/div

CLOCK FEEDTHROUGH

CLK

0

3V

10mV/div

MAX5105/06 toc17

OUT1

V

DD

= +3.0V

V

REFH1

= +2.5V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 00 HEX
R

L

= 10kΩ

1.0 µs/div

CLOCK FEEDTHROUGH

CLK

0

5V

10mV/div

MAX5105/06 toc18

OUT1

V

DD

= +5.0V

V

REFH1

= +4.096V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 00 HEX
R

L

= 10kΩ

1.0 µs/div

1LSB DIGITAL STEP-CHANGE

(POSITIVE)

CS

0

3V

50mV/div

MAX5105/06 toc15

OUT1

VDD = +3.0V
V

REFH1

= +2.5V

C

LOAD

= 100pF

f

CLK

= 500kHz
CODE = 7F HEX TO 80 HEX
R

L

= 10kΩ