+5V, Low-Power, Voltage-Output,

Serial 12-Bit DACs

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3

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

PARAMETER

Input Current

SYMBOL

MIN

TYP

MAX

±1

UNITS

Noise Voltage

µA

400

Input Capacitance

µVp-p

Power-Supply Rejection Ratio

8

PSRR

300

µV/V

Resistance

0.5

2

pF

Ω

Temperature Coefficient

30

50

ppm/°C

Minimum Required External

Capacitor

3.3

µF

Output High

Input High

2.4

V

Input Low

V

0.8

V

Output Low

0.4

V

Voltage-Output Slew Rate

SR

0.15

0.25

V/µs

Voltage-Output Settling Time

25

µs

Digital Feedthrough

2.024

2.048

2.072

5

nV-s

Signal-to-Noise plus Distortion

SINAD

68

dB

260

400

CONDITIONS

0.1Hz to 10kHz

4.5V

(Note 5)

MAX531AC/AE/AM/BM

To ±1/2LSB, VOUT = 2V

REFIN = 1kHz, 2Vp-p (G = +1 or +2),

code = FFF hex

Power-Supply Current

output = no load

140

300

µA

CS Setup Time

20

ns

SCLK Fall to

CS Fall Hold Time

15

ns

SCLK Fall to

CS Rise Hold Time

0

ns

SCLK High Width

35

ns

SCLK Low Width

35

ns

DIN Setup Time

45

ns

DIN Hold Time

0

ns

DOUT Valid Propagation Delay

80

ns

CS High Pulse Width

20

ns

CLR Pulse Width

25

ns

MAX531BC/BE

MAX531

MAX538, MAX539

30

2.017

2.079

Reference Output Voltage

V

2.013

2.083

CS Rise to SCLK Rise Setup Time

50

ns

MAX531BC

MAX531BE

Positive Supply Voltage

4.5

5.5

V

REFERENCE OUTPUT (REFOUT—MAX531 only)

DIGITAL INPUTS (DIN, SCLK,

CS, CLR)

DIGITAL OUTPUT (DOUT)

DYNAMIC PERFORMANCE

POWER SUPPLY

SWITCHING CHARACTERISTICS