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ELECTRICAL CHARACTERISTICS

DAC8581

SLAS481A – AUGUST 2005 – REVISED AUGUST 2005

All specifications at T

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

STATIC PERFORMANCE

Resolution

16

Bits

Linearity error

±0.03

±0.1

%FS

Differential linearity error

±0.25

±0.5

LSB

Gain error

1

2

3

%FS

Gain drift

±5

ppm/

°C

Bipolar zero error

–5

±25

mV

Bipolar zero drift

±20

µV/°C

Total drift

±10

ppm/

°C

OUTPUT CHARACTERISTICS

V

Output impedance

1

Ω

Maximum output current

±25

mA

0.65

Settling time

µs

To 0.003% FS

1

35

V/

µs

Code change glitch

1 LSB change around major carry

0.5

nV-S

Overshoot

Full-scale change

50

mV

0.5

nV-S

SNR

Digital sine wave input, Fout = 1 kHz,

108

dB

BW = 10 kHz, 2 MSPS update rate

THD

Digital sine wave input, Fout = 20 kHz,

–72

dB

8-Vpp output, 2-MSPS update rate

0.1 Hz to 10 Hz

25

µVpp

Output voltage noise

At 10-kHz offset frequency

25

nV/rtHz

At 100-kHz offset frequency

20

nV/rtHz

Power supply rejection

VDD varies

±10%

0.75

mV/V

REFERENCE

Large signal: 2-Vpp sine wave on 4 V DC

3

MHz

Reference input bandwidth

Small signal: 100-mVpp sine wave on 4 V DC

10

MHz

Reference input voltage range

3

V

Reference input impedance

5

k

Ω

Reference input capacitance

5

pF

DIGITAL INPUTS

V

GND

Input current

±1

µA

Input capacitance

10

pF

Power-on delay

20

µs

(1)

Output can reach

±V

(2)

Slew rate is measure from 10% to 90% of transition when the output changes from 0 to full scale.

(3)

Digital feedthrough is defined as the impulse injected into the analog output from the digital input. It is measured when the DAC output

does not change, CS is held high, and while SCLK and SDIN signals are toggled.

3