Datasheet
DAC8581
www.ti.com
SLAS481C –AUGUST 2005–REVISED OCTOBER 2012
ELECTRICAL CHARACTERISTICS
All specifications at T
A
= T
MIN
to T
MAX
, +AV
DD
= +5 V, –AV
DD
= –5 V, DV
DD
= +5 V (unless otherwise noted).
DAC8581
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
STATIC PERFORMANCE
Resolution 16 Bits
Linearity error V
REF
= 4.096 V ±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
REF
up to 5.5 V, when AV
DD
= 6 V, AV
SS
= –6
Voltage output –V
REF
V
REF
V
V
Output impedance 1 Ω
Maximum output current ±25 mA
C
L
< 200 pF, R
L
= 2 kΩ, to 0.1% FS, 8-V step 0.65
Settling time μs
To 0.003% FS 1
Slew rate
(1)
35 V/μs
Code change glitch 1 LSB change around major carry 0.5 nV-S
Overshoot Full-scale change 50 mV
Digital feedthrough
(2)
0.5 nV-S
Digital sine wave input, f
OUT
= 1 kHz,
SNR 108 dB
BW = 10 kHz, 2-MSPS update rate
Digital sine wave input, f
OUT
= 20 kHz,
THD –72 dB
8-V
PP
output, 2-MSPS update rate
0.1 Hz to 10 Hz 25 μV
PP
Output voltage noise At 10-kHz offset frequency 25 nV/√Hz
At 100-kHz offset frequency 20 nV/√Hz
Power supply rejection VDD varies ±10% 0.75 mV/V
REFERENCE
Large signal: 2-V
PP
sine wave on 4 V DC 3 MHz
Reference input bandwidth
Small signal: 100-mV
PP
sine wave on 4 V DC 10 MHz
Reference input voltage range 3 AV
DD
V
Reference input impedance 5 kΩ
Reference input capacitance 5 pF
DIGITAL INPUTS
V
IH
0.7 x DV
DD
V
V
IL
GND 0.3 x DV
DD
Input current ±1 μA
Input capacitance 10 pF
Power-on delay From V
DD
high to CS low 20 μs
(1) Slew rate is measured from 10% to 90% of transition when the output changes from 0 to full-scale.
(2) 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.
Copyright © 2005–2012, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Links: DAC8581