Datasheet

AD5590
Rev. A | Page 15 of 44
CURRENT (mA)
ERROR VOLTAGE (V)
0.50
0.40
–0.50
–0.40
–0.30
–0.20
–0.10
0
0.10
0.20
0.30
–10 –8 –6 –4 –2 0 2 4 8610
DACV
DD
= 5V
V
REFOUT
= 2.5V
DAC LOADED WITH
ZERO-SCALE
SINKING CURRENT
DAC LOADED WITH
FULL-SCALE
SOURCING CURRENT
0
7691-012
Figure 12. DAC Headroom at Rails vs. Source and Sink
CURRENT (mA)
V
OUT
(V)
6
5
4
3
2
1
–1
0
–30 –20 –10 0 10 20 30
DACV
DD
= 5V
V
REFOUT
= 2.5V
T
A
= 25°C
ZERO SCALE
FULL SCALE
MIDSCALE
1/4 SCALE
3/4 SCALE
0
7691-013
Figure 13. DAC Sink and Source Capability
TIME BASE = 4µs/DIV
DACV
DD
= V
REFA
= 5V
T
A
= 25°C
FULL-SCALE CODE CHANGE
0x0000 TO 0xFFFF
OUTPUT LOADED WITH 2kΩ
AND 200pF TO GND
V
OUT
= 909mV/DIV
1
07691-014
Figure 14. DAC Full-Scale Settling Time
CH1 2.0V CH2 500mV M100µs 125MS/s
A CH1 1.28V
8.0ns/pt
DACV
DD
= V
REFA
= 5V
T
A
= 25°C
VOUT
1
2
MAX(C2)*
420.0mV
DACV
DD
07691-015
Figure 15. DAC Power-On Reset to 0 V
DACV
DD
= 5V
DSYNC
DSCLK
VOUT
1
3
CH1 5.0V
CH3 5.0V
CH2 500mV M400ns A CH1 1.4V
2
0
7691-016
Figure 16. DAC Exiting Power-Down to Midscale
SAMPLE
V
OUT
(V)
2.505
2.485
0 512
64 128 192 256 320 384 448
DACV
DD
= 5V
V
REFOUT
= 2.5V
T
A
= 25°C
4ns/SAMPLE NUMBER
GLITCH IMPULSE = 3.55nV-sec
1 LSB CHANGE AROUND
MIDSCALE (0x8000 TO 0x7FFF)
2.486
2.487
2.488
2.489
2.490
2.491
2.492
2.493
2.494
2.495
2.496
2.497
2.498
2.499
2.500
2.501
2.502
2.503
2.504
07691-017
Figure 17. DAC Digital-to-Analog Glitch Impulse (Negative)