Rainbow Electronics MAX5183 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 MAX5180 contains two 10-bit, simultaneousupdate, current-output digital-to-analog converters (DACs) designed for superior performance in communications systems requiring analog signal reconstruction with low distortion and low-power operation. The MAX5183 provides equal specifications, with on-chip precision resistors for voltage output operation. The devices are designed for 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 MAX5180/MAX5183 are designed to provide a high level of signal integrity for the least amount of power dissipation. The DACs operate from a single supply of +2.7V to +3.3V. Additionally, these DACs have three modes of operation: normal, low-power standby, and complete shutdown, which provides the lowest possible power dissipation with 1µA (max) shutdown current. A fast wake-up time (0.5µs) from standby mode to full DAC operation conserves power by activating the DACs only when required.

The MAX5180/MAX5183 are packaged in a 28-pin QSOP and are specified for the extended (-40°C to +85°C) temperature range. For lower-resolution, dual 8-bit versions, refer to the MAX5186/MAX5189 data sheet.

Applications

Signal Reconstruction of I and Q Transmit

Signals

Digital Signal Processing

Arbitrary Waveform Generation (AWG)

Imaging

Features

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

♦ Wide Spurious-Free Dynamic Range: 70dB

at f

OUT

= 2.2MHz

♦ Fully Differential Outputs for Each DAC

♦ ±0.5% FSR Gain Mismatch

♦ ±0.2° Phase Mismatch

♦ Low-Current Standby or Full-Shutdown Modes

♦ Internal +1.2V Low-Noise Bandgap Reference

♦ Small 28-Pin QSOP Package

MAX5180/MAX5183

Dual, 10-Bit, 40MHz, Current/Voltage

Simultaneous-Output DACs

________________________________________________________________ Maxim Integrated Products 1

19-1577; Rev 3; 12/01

PART

MAX5180BEEI

-40°C to +85°C

TEMP RANGE PIN-PACKAGE

28 QSOP

Pin Configuration

Ordering Information

MAX5183BEEI

-40°C to +85°C 28 QSOP

TOP VIEW

CREF1

OUT1P

OUT1N

AGND

AV

DACEN

CLK

N.C.

REN

1

2

3

4

5

DD

PD

CS

D0

D1

D2

MAX5180

6

MAX5183

7

8

9

10

11

12

13

14

28

CREF2

27

OUT2P

26

OUT2N

25

REFO

24

REFR

23

DGND

22

DV

DD

21

D9

20

D8

19

D7

18

D6

17

D5

16

D4

15

D3

QSOP

MAX5180/MAX5183

Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-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 Inputs to DGND.............................................-0.3V to +6V

OUT1P, OUT1N, OUT2P, OUT2N, CREF1,

CREF2 to AGND ...................................................-0.3V to +6V

V

REF

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

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

AVDDto DVDD.................................................................... ±3.3V

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

Continuous Power Dissipation (T

A

= +70°C)

28-Pin QSOP (derate 9.00mW/°C above +70°C)....... 725mW

Operating Temperature Range

MAX518_BEEI.................................................-40°C to +85°C

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

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

-8 +8

MAX5183

MAX5180

f

CLK

= 40MHz

DACEN = 0, MAX5180 only

f

OUT

= 2.2MHz

f

OUT

= 2.2MHz, TA=+25°C

All 0s to all 1s

f

OUT

= 2.2MHz

f

CLK

= 40MHz

To ±0.5LSB error band

Guaranteed monotonic

(Note 1)

f

CLK

= 40MHz

CONDITIONS

µA

-1 1

Output Leakage Current

V

-0.3 0.8

Voltage Compliance of Output

mV

400

V

FS

Full-Scale Output Voltage

degrees

±0.15

Phase Mismatch Between DAC Outputs

%FSR

±0.5 ±1

Gain Mismatch Between DAC Outputs

pA/√Hz

10

Output Noise

nVs

50

Clock and Data Feedthrough

dB

-60

DAC-to-DAC Output Isolation

59

dB

61

SNRSignal-to-Noise Ratio to Nyquist

-68 -63

dB

-70

THD

Total Harmonic Distortion to Nyquist

LSB

-2 ±0.5 +2

INLIntegral Nonlinearity

Bits

10

NResolution

57 70

dBc

72

SFDR

Spurious-Free Dynamic Range to Nyquist

pVs

10

Glitch Impulse

ns

25

Output Settling Time

LSB

-1 ±0.5 +1

DNLDifferential Nonlinearity

LSB

-2 +2

Zero-Scale Error

LSB

-40 ±15 +40

Full-Scale Error

UNITSMIN TYP MAXSYMBOLPARAMETER

MAX5180 only

Ω

400

R

L

DAC External Output Resistor Load

mA

0.5 1 1.5

I

FS

Full-Scale Output Current

f

OUT

= 550kHz

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

DYNAMIC PERFORMANCE

ANALOG OUTPUT

MAX5180/MAX5183

Dual, 10-Bit, 40MHz, Current/Voltage

Simultaneous-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 1.0

I

SHDN

Shutdown Current

mA

1.0 1.5

I

STANDBY

Standby Current

mA

4.2 5.0

I

DVDD

Digital Supply Current

V

2.7 3.3

DV

DD

Digital Power-Supply Voltage

mA

2.7 5.0

I

AVDD

Analog Supply Current

V

2.7 3.3

AV

DD

Analog Power-Supply Voltage

mA/mA

8

Current Gain (I

FS

/ 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

DH2

DAC2 CLK Fall to DATA Hold Time

ns

0

t

DH1

DAC1 CLK Rise to DATA Hold Time

ns

10

t

DS2

DAC2 DATA to CLK Fall Setup Time

ns

10

t

DS1

DAC1 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

CP

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

1.5

2.0

3.0

2.5

3.5

4.0

-40 -15 10 35 60 85

ANALOG SUPPLY CURRENT vs. TEMPERATURE

MAX5180/83-04

TEMPERATURE (°C)

ANALOG SUPPLY CURRENT (mA)

MAX5180

MAX5183

0

2

6

4

8

10

2.5 3.53.0 4.0 4.5 5.0 5.5

DIGITAL SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX5180/83-05

SUPPLY VOLTAGE (V)

DIGITAL SUPPLY CURRENT (mA)

MAX5183

MAX5180

0

1

3

2

4

5

-40 -15 10 35 60 85

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

MAX5180/83-06

TEMPERATURE (°C)

DIGITAL SUPPLY CURRENT (mA)

MAX5180

MAX5183

0.6

0.5

0.4

0.3

0.2

0.1

0

-0.1

-0.2 0 128 256 384 512 640 768 896 1024

INTEGRAL NONLINEARITY

vs. INPUT CODE

MAX5180/83-01

INPUT CODE

INL (LSB)

0.4

0.3

0.2

0.1

0

-0.1

-0.2

-0.3 0 128 256 384 512 640 768 896 1024

DIFFERENTIAL NONLINEARITY

vs. INPUT CODE

MAX5180/83-02

INPUT CODE

DNL (LSB)

2.45

2.47

2.51

2.49

2.53

2.55

2.5 3.53.0 4.0 4.5 5.0 5.5

ANALOG SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX5180/83-03

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

MAX5180

MAX5183

560

570

590

580

600

610

2.5 3.53.0 4.0 4.5 5.0 5.5

STANDBY CURRENT vs. SUPPLY VOLTAGE

MAX5180/83-07

SUPPLY VOLTAGE (V)

STANDBY CURRENT (µA)

MAX5183

MAX5180

540

560

550

580

570

590

600

-40 10-15 35 60 85

STANDBY CURRENT vs. TEMPERATURE

MAX5180/83-08

TEMPERATURE (°C)

STANDBY CURRENT (µA)

MAX5180

MAX5183

0.45

0.55

0.50

0.60

0.65

0.70

0.75

0.80

2.5 3.53.0 4.5

4.0

5.0 5.5

SHUTDOWN CURRENT vs. SUPPLY VOLTAGE

MAX5180/83-09

SUPPLY VOLTAGE (V)

SHUITDOWN CURRENT (µA)

MAX5180

MAX5183

Typical Operating Characteristics

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

MAX5180/MAX5183

Dual, 10-Bit, 40MHz, Current/Voltage Simultaneous-Output DACs

4 _______________________________________________________________________________________

MAX5180/MAX5183

Dual, 10-Bit, 40MHz, Current/Voltage

Simultaneous-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.)

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

1.28

1.27

1.26

1.25

REFERENCE VOLTAGE (V)

1.24

1.23

2.5 3.53.0 4.0 4.5 5.0 5.5

DYNAMIC RESPONSE RISE TIME

MAX5180

MAX5183

SUPPLY VOLTAGE (V)

1.28

MAX5180/83-10

1.27

1.26

1.25

REFERENCE VOLTAGE (V)

1.24

1.23

MAX5180/83-13

OUT_P 150mV/div

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

MAX5183

MAX5180

-40 -15 10 35 60 85 TEMPERATURE (°C)

DYNAMIC RESPONSE FALL TIME

MAX5180/83-11

OUTPUT CURRENT (mA)

MAX5180/83-14

OUT_P 150mV/div

OUTPUT CURRENT vs. REFERENCE CURRENT

4

3

2

1

0

0 200100 400

REFERENCE CURRENT (µA)

300

SETTLING TIME

MAX5180/83-12

500

MAX5180/83-15

OUT_N 100mV/div

0

-10

-20

-30

-40

-50

-60

(dBc)

-70

-80

-90

-100

-110

-120 0246

OUT_N 150mV/div

12.5ns/div

50ns/div

OUT_N 150mV/div

50ns/div

SPURIOUS-FREE DYNAMIC RANGE

FFT PLOT, DAC1

f f

81012141618

FREQUENCY (MHz)

OUT CLK

= 2.2MHz = 40MHz

20

MAX5180/83-16

0

-10

-20

-30

-40

-50

-60

(dBc)

-70

-80

-90

-100

-110

-120 0246

FFT PLOT, DAC2

81012141618

FREQUENCY (MHz)

f

OUT

f

CLK

= 2.2MHz = 40MHz

MAX5180/83-17

20

100

90

80

70

SFDR (dBc)

60

50

40

vs. CLOCK FREQUENCY

DAC2

DAC1

10 302515 20 35 40 45 50 55 60

CLOCK FREQUENCY (MHz)

OUT_P 100mV/div

MAX5180/83-18