Maxim MAX5186BEEI, MAX5189BEEI Datasheet

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General Description

The MAX5186 contains two 8-bit, simultaneous-update,
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 MAX5189 pro­vides equal specifications, with on-chip precision resis­tors for voltage output operation. The MAX5186/
MAX5189 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 MAX5186/MAX5189 are designed to provide a high
level of signal integrity for the least amount of power dissi­pation. Both DACs operate from a single supply voltage
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 a 1µA (max) shutdown current. A
fast wake-up time (0.5µs) from standby mode to full DAC
operation allows power conservation by activating the
DACs only when required.

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

Applications

Signal Reconstruction of I and Q
Transmit Signals

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 Outputs for Each DAC

♦ ±0.5% FSR Gain Mismatch

♦ ±0.15° Phase Mismatch

♦ Low-Current Standby or Full Shutdown Modes

♦ Internal +1.2V, Low-Noise Bandgap Reference

♦ Small 28-Pin QSOP Package

MAX5186/MAX5189

Dual, 8-Bit, 40MHz, Current/Voltage,

Simultaneous-Output DACs

________________________________________________________________ Maxim Integrated Products 1

19-1581; Rev 0; 12/99

Pin Configuration

Ordering Information

PART

MAX5186BEEI

MAX5189BEEI

TEMP. RANGE

-40°C to +85°C

-40°C to +85°C

PIN-PACKAGE

28 QSOP

28 QSOP

TOP VIEW

CREF1

OUT1P

OUT1N

AGND

AV

DACEN

CLK

N.C.

REN

DGND

DGND

1

2

3

4

5

DD

PD

CS

D0

MAX5186

6

MAX5189

7

8

9

10

11

12

13

14

QSOP

28

CREF2

27

OUT2P

26

OUT2N

25

REFO

24

REFR

23

DGND

22

DV

DD

21

D7

20

D6

19

D5

18

D4

17

D3

16

D2

15

D1

MAX5186/MAX5189

Dual, 8-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 Input 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

AV

DD

to 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 Ranges

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

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

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

Full-Scale Error

-4 +4MAX5189

57 70

PARAMETER SYMBOL MIN TYP MAX UNITS

-20 ±4 +20 LSB

Zero-Scale Error

-1 +1
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

Signal-to-Noise-Ratio to Nyquist

THD

-70
dB

8 Bits

Integral Nonlinearity INL -1 ±0.25 +1 LSB

-68 -63

SNR

52

dB

46 52

DAC-to-DAC Output Isolation -60 dB

Clock and Data Feedthrough 50 nVs

Output Noise 10

pA/√Hz

Gain Mismatch Between DAC
Outputs

±0.5 ±1 LSB

Phase Mismatch Between DAC
Outputs

±0.15 degrees

CONDITIONS

f

OUT

= 2.2MHz, f

CLK

= 40MHz

f

OUT

= 550kHz, f

CLK

= 40MHz

(Note 1)

MAX5186

Guaranteed monotonic

To ±0.5LSB error band

f

OUT

= 2.2MHz, f

CLK

= 40MHz

f

OUT

= 2.2MHz

f

OUT

= 550kHz, f

CLK

= 40MHz

f

OUT

= 550kHz, f

CLK

= 40MHz

All 0s to all 1s

f

OUT

= 2.2MHz

f

OUT

= 2.2MHz

Resolution N

Total Harmonic Distortion
to Nyquist

f

OUT

= 2.2MHz, f

CLK

= 40MHz

DYNAMIC PERFORMANCE

STATIC PERFORMANCE

MAX5186/MAX5189

Dual, 8-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.)

VIN= 0 or DV

DD

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

DACEN = 0, MAX5186 only

MAX5186 only

MAX5186 only

CONDITIONS

pF10C

IN

Digital Input Capacitance

µA±1I

IN

Digital Input Current

V0.8V

IL

Digital Input Voltage Low

V2V

IH

Digital Input Voltage High

µA0.5 1I

SHDN

Shutdown Current

mA1.0 1.5I

STANDBY

Standby Current

mA4.2 5.0IDV

DD

Digital Supply Current

V2.7 3.3DV

DD

Digital Power-Supply Voltage

mA2.7 5.0IAV

DD

Analog Supply Current

V2.7 3.3AV

DD

Analog Power-Supply Voltage

mA/mA8Current Gain (IFS/ I

REF

)

V-0.3 0.8Voltage Compliance of Output

mV400V

FS

Full-Scale Output Voltage

mV/V0.5Reference Supply Rejection

µA10I

REFOUT

Reference Output Drive
Capability

ppm/°C50TCV

REF

Output Voltage Temperature
Drift

V1.12 1.2 1.28V

REF

Output Voltage Range

µA-1 1Output Leakage Current

mA0.5 1 1.5I

FS

Full-Scale Output Current

Ω400R

L

DAC External Output Resistor
Load

UNITSMIN TYP MAXSYMBOLPARAMETER

ns10t

DS1

DAC1 DATA to CLK Rise Setup
Time

ns10t

DS2

DAC2 DATA to CLK Fall Setup
Time

ns0t

DH1

DAC1 CLK Rise to DATA Hold
Time

ns0t

DH2

DAC2 CLK Fall to DATA Hold
Time

ANALOG OUTPUT

TIMING CHARACTERISTICS

LOGIC INPUTS AND OUTPUTS

POWER REQUIREMENTS

REFERENCE

MAX5186/MAX5189

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

4 _______________________________________________________________________________________

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.)

Note 1: Excludes reference and reference resistor (MAX5189) tolerance.

ns10t

CL

Clock Low Time

ns10t

CH

Clock High Time

ns25t

CLK

Clock Period

µs50PD Fall Time to V

OUT

µs0.5DACEN Rise Time to V

OUT

ns5

CS Fall to CLK Fall Time

ns5

CS Fall to CLK Rise Time

PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS

MAX5186/MAX5189

Dual, 8-Bit, 40MHz, Current/Voltage,

Simultaneous-Output DACs

_______________________________________________________________________________________ 5

Typical Operating Characteristics

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

0.150

0.125

0.100

0.075

0.050

0.025

0

-0.025

-0.050
0 32 64 96 128 160 192 224 256

INTEGRAL NONLINEARITY

vs. INPUT CODE

MAX5186/9toc01

INPUT CODE

INL (LSB)

0.100

0.075

0.050

0.025

0

-0.025

-0.050

-0.075
0 32 64 96 128 160 192 224 256

DIFFERENTIAL NONLINEARITY

vs. INPUT CODE

MAX5186/9toc02

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

MAX5186/9toc03

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (mA)

MAX5189

MAX5186

1.5

2.0

3.0

2.5

3.5

4.0

-40 -15 10 35 60 85

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

MAX5186/9toc04

TEMPERATURE (°C)

ANALOG SUPPLY CURRENT (mA)

MAX5186

MAX5189

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

MAX5186/9toc05

SUPPLY VOLTAGE (V)

DIGITAL SUPPLY CURRENT (mA)

MAX5189

MAX5186

0

1

3

2

4

5

-40 -15 10 35 60 85

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

MAX5186/9toc06

TEMPERATURE (°C)

DIGITAL SUPPLY CURRENT (mA)

MAX5186

MAX5189

560

570

590

580

600

610

2.5 3.53.0 4.0 4.5 5.0 5.5

STANDBY CURRENT vs. SUPPLY VOLTAGE

MAX5186/9toc07

SUPPLY VOLTAGE (V)

STANDBY CURRENT (µA)

MAX5189

MAX5186

540

560

550

580

570

590

600

-40 10-15 35 60 85

STANDBY CURRENT vs. TEMPERATURE

MAX5186/9toc08

TEMPERATURE (°C)

STANDBY CURRENT (µA)

MAX5189

MAX5186

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

MAX5186/9toc09

SUPPLY VOLTAGE (V)

SHUITDOWN CURRENT (µA)

MAX5186

MAX5189