Rainbow Electronics MAX5190 User Manual

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.

General Description

The MAX5187 is an 8-bit, current-output digital-to-ana­log converter (DAC) designed for superior performance
in signal reconstruction or arbitrary waveform genera­tion applications requiring analog signal reconstruction
with low distortion and low-power operation. The volt­age-output MAX5190 provides equal specifications,
with on-chip precision resistors for voltage output oper­ation. Both devices are designed for a 10pVs glitch
operation to minimize unwanted spurious signal com­ponents at the output. An on-board +1.2V bandgap cir­cuit provides a well-regulated, low-noise reference that
can be disabled for external reference operation.

The MAX5187/MAX5190 are designed to provide a high
level of signal integrity for the least amount of power
dissipation. They operate from a single supply of +2.7V
to +3.3V. Additionally, these DACs have three modes of
operation: normal, low-power standby, and full shut­down, which provides the lowest possible power dissi­pation with a 1µA (max) shutdown current. A fast
wake-up time (0.5µs) from standby mode to full DAC
operation allows for power conservation by activating
the DAC only when required.

The MAX5187/MAX5190 are packaged in a 24-pin
QSOP and are specified for the extended (-40°C to
+85°C) temperature range. For higher resolution, 10-bit
versions, see the MAX5181/MAX5184 data sheet.

Applications

Signal Reconstruction

Digital Signal Processing

Arbitrary Waveform Generation (AWG)

Imaging Applications

Features

♦ +2.7V to +3.3V Single-Supply Operation

♦ Wide Spurious-Free Dynamic Range:

70dB at f

OUT

= 2.2MHz

♦ Fully Differential Output

♦ Low-Current Standby or Full Shutdown Modes

♦ Internal +1.2V Low-Noise Bandgap Reference

♦ Small 24-Pin QSOP Package

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

________________________________________________________________ Maxim Integrated Products 1

19-1582; Rev 2; 12/01

PART

MAX5187BEEG

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

24 QSOP

Pin Configuration

Ordering Information

MAX5190BEEG

-40°C to +85°C 24 QSOP

TOP VIEW

CREF

OUTP

OUTN

AGND

AV

DACEN

CLK

REN

DGND

1

2

3

4

5

DD

PD

CS

MAX5187

6

MAX5190

7

8

9

10

11

12

QSOP

REFO

24

REFR

23

DGND

22

DV

21

DD

20

D7

19

D6

18

D5

17

D4

16

D3

15

D2

14

D1

13

D0DGND

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(AVDD= DVDD= +3V ±10%, AGND = DGND = 0, f

CLK

= 40MHz, IFS= 1mA, 400Ω differential output, CL= 5pF, TA= T

MIN

to T

MAX

,

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.

AVDD, DVDDto AGND, DGND .................................-0.3V to +6V

Digital Input to DGND...............................................-0.3V to +6V

OUTP, OUTN, CREF to AGND .................................-0.3V to +6V

V

REF

to AGND ..........................................................-0.3V to +6V

AGND to DGND.....................................................-0.3V to +0.3V

AV

DD

to DVDD.....................................................................±3.3V

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

Continuous Power Dissipation (T

A

= +70°C)

24-Pin QSOP (derate 9.50mW/°C above +70°C)........762mW

Operating Temperature Ranges

MAX5187BEEG/MAX5190BEEG ....................-40°C to +85°C

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

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

f

OUT

= 2.2MHz, TA= +25°C

f

OUT

= 550kHz

f

OUT

= 2.2MHz, TA= +25°C

f

OUT

= 550kHz

f

OUT

= 2.2MHz, TA= +25°C

ANALOG OUTPUT

DYNAMIC PERFORMANCE

STATIC PERFORMANCE

Full-Scale Output Current I

FS

0.5 1 1.5

mA

DAC External Output Resistor
Load

R

L

400

Ω

MAX5187 only

MAX5187 only

PARAMETER SYMBOL MIN TYP MAX UNITS

Full-Scale Error

-20 ±4 +20

LSB

Zero-Scale Error

-4 +4

LSB

Differential Nonlinearity DNL

-1 ±0.25 +1

LSB

Output Settling Time

25

ns

Glitch Impulse

10

pVs

Spurious-Free Dynamic Range
to Nyquist

SFDR

72

dBc

57 70

Resolution N

8

Bits

Integral Nonlinearity INL

-1 ±0.25 +1

LSB

Total Harmonic Distortion
to Nyquist

THD

-70
dB

-68 -63

Signal-to-Noise Ratio
to Nyquist

SNR

52

dB

46 52

Clock and Data Feedthrough

50

nVs

Output Noise

10

pA/√Hz

Full-Scale Output Voltage V

FS

400

mV

Voltage Compliance of Output

-0.3 0.8

V

Output Leakage Current

-1 1

µA

CONDITIONS

(Note 1)

MAX5191

Guaranteed monotonic

To ±0.5LSB error band

All 0s to all 1s

DACEN = 0, MAX5187 only

MAX5182

-1 +1

STATIC PERFORMANCE

DYNAMIC PERFORMANCE

ANALOG OUTPUT

f

OUT

= 550kHz

f

CLK

= 40MHz

f

CLK

= 40MHz

f

CLK

= 40MHz

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(AVDD= DVDD= +3V ±10%, AGND = DGND = 0, f

CLK

= 40MHz, IFS= 1mA, 400Ω differential output, CL= 5pF, TA= T

MIN

to T

MAX

,

unless otherwise noted. Typical values are at T

A

= +25°C.)

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

PD = 1, DACEN = X, digital inputs at 0
or DV

DD

(X = don’t care)

PD = 0, DACEN = 0, digital inputs at 0
or DV

DD

PD = 0, DACEN = 1, digital inputs at 0
or DV

DD

PD = 0, DACEN = 1, digital inputs at 0
or DV

DD

µA

0.5 1

I

SHDN

Shutdown Current

mA

1 1.5

I

STANDBY

Standby Current

mA

4.2 5

I

DVDD

Digital Supply Current

V

2.7 3.3

DV

DD

Digital Power-Supply Voltage

mA

1.7 4

I

AVDD

Analog Supply Current

V

2.7 3.3

AV

DD

Analog Power-Supply Voltage

mA/mA

8

Current Gain (IFS/ I

REF

)

mV/V

0.5

Reference Supply Rejection

µA

10

I

REFOUT

Reference Output Drive
Capability

ppm/°C

50

TCV

REF

Output Voltage Temperature
Drift

V

1.12 1.2 1.28

V

REF

Output Voltage Range

VIN= 0 or DV

DD

ns

0

t

DH

DAC CLK Rise to DATA
Hold Time

ns

10

t

DS

DAC DATA to CLK Rise
Setup Time

pF

10

C

IN

Digital Input Capacitance

µA

±1

I

IN

Digital Input Current

V

0.8

V

IL

Digital Input Voltage Low

V

2

V

IH

Digital Input Voltage High

ns

10

t

CL

Clock Low Time

ns

10

t

CH

Clock High Time

ns

25

t

CLK

Clock Period

µs

50

PD Fall Time to V

OUT

µs

0.5

DACEN Rise Time to V

OUT

ns

5

CS Fall to CLK Fall Time

ns

5

CS Fall to CLK Rise Time

REFERENCE

POWER REQUIREMENTS

LOGIC INPUTS AND OUTPUTS

TIMING CHARACTERISTICS

Note 1: Excludes reference and reference resistor (MAX5190) tolerance.

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

4 _______________________________________________________________________________________

Typical Operating Characteristics

(AVDD= DVDD= +3V, AGND = DGND = 0, 400Ω differential output, IFS= 1mA, CL= 5pF, TA= +25°C, unless otherwise noted.)

3.0

2.5

1.5

2.0

1.0

-40 35-15 10 60 85

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

MAX5187/90-04

TEMPERATURE (°C)

ANALOG SUPPLY CURRENT (mA)

MAX5187

MAX5190

8

7

6

5

4

3

2.5 4.03.0 3.5 4.5 5.0 5.5

DIGITAL SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX5187/90-05

SUPPLY VOLTAGE (V)

DIGITAL SUPPLY CURRENT (mA)

MAX5190

MAX5187

4.00

3.75

3.25

3.50

3.00

-40 35-15 10 60 85

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

MAX5187/90-06

TEMPERATURE (°C)

DIGITAL SUPPLY CURRENT (mA)

MAX5190

MAX5187

610

600

590

580

570

2.5 4.03.0 3.5 4.5 5.0 5.5

STANDBY CURRENT

vs. SUPPLY VOLTAGE

MAX5187/90-07

SUPPLY VOLTAGE (V)

STANDBY CURRENT (µA)

MAX5190

MAX5187

600

590

570

560

580

550

-40 35-15 10 60 85

STANDBY CURRENT

vs. TEMPERATURE

MAX5187/90-08

TEMPERATURE (°C)

STANDBY CURRENT (µA)

MAX5190

MAX5187

0.14

0.12

0.10

0.06

0.08

0.04

2.5 4.03.0 3.5 4.5 5.0 5.5

SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE

MAX5187/90-09

SUPPLY VOLTAGE (V)

SHUTDOWN CURRENT (µA)

MAX5190

MAX5187

INTEGRAL NONLINEARITY

vs. INPUT CODE

0.150

0.125

0.100

0.075

0.050

INL (LSB)

0.025

0

-0.025

-0.050
0 32 64 96 128 160 192 224 256

INPUT CODE

MAX5187/90-01

DNL (LSB)

-0.075

DIFFERENTIAL NONLINEARITY

vs. INPUT CODE

0.100

0.075

0.050

0.025

0

-0.025

-0.050

0 32 64 96 128 160 192 224 256

INPUT CODE

3.0

MAX5187/90-02

2.5

2.0

1.5

ANALOG SUPPLY CURRENT (mA)

1.0

ANALOG SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX5190

2.5 4.03.0 3.5 4.5 5.0 5.5

MAX5187

SUPPLY VOLTAGE (V)

MAX5187/90-03

MAX5187/MAX5190

8-Bit, 40MHz, Current/Voltage-Output DACs

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

(AVDD= DVDD= +3V, AGND = DGND = 0, 400Ω differential output, IFS= 1mA, CL= 5pF, TA= +25°C, unless otherwise noted.)

4

3

1

2

0

0 300100 200 400 500

OUTPUT CURRENT

vs. REFERENCE CURRENT

MAX5187/90-13

REFERENCE CURRENT (µA)

OUTPUT CURRENT (mA)

DYNAMIC RESPONSE RISE TIME

MAX5187/90-14

50ns/div

OUTP
150mV/
div

OUTN
150mV/
div

DYNAMIC RESPONSE FALL TIME

MAX5187/90-15

50ns/div

OUTP
150mV/
div

OUTN
150mV/
div

SETTLING TIME

MAX5187/90-16

12.5ns/div

OUTN
100mV/
div

OUTP
100mV/
div

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-110

-120
0246

81012141618

20

FFT PLOT

MAX5187/90-17

OUTPUT FREQUENCY (MHz)

(dBc)

f

OUT

= 2.2MHz

f

CLK

= 40MHz

SHUTDOWN CURRENT

vs. TEMPERATURE

0.13

0.11

0.09

0.07

SHUTDOWN CURRENT (µA)

0.05

0.03

MAX5190

MAX5187

-40 35-15 10 60 85
TEMPERATURE (°C)

1.28

MAX5187/90-10

1.27

1.26

1.25

REFERENCE VOLTAGE (V)

1.24

1.23

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

MAX5187/90-11

MAX5190

MAX5187

REFERENCE VOLTAGE (V)

2.5 4.03.0 3.5 4.5 5.0 5.5
SUPPLY VOLTAGE (V)

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

1.28

1.27

1.26

MAX5187

1.25

1.24

1.23

-40 35-15 10 60 85

MAX5190

TEMPERATURE (°C)

MAX5187/90-12