Datasheet
Data Sheet AD5781
Rev. D | Page 15 of 28
10.8
10.6
10.4
10.2
10.0
9.8
9.6
9.4
0 1
5432
V
OUT
(mV)
TIME (
µs)
±10V V
REF
OUTPUT GAIN OF 1
BIAS COMPENSATION MODE
20pF COMPENSATION CAPACITOR
RC LOW-
PASS FILTER
09092-063
Figure 41. 125 Code Step Settling Time
10
0
1
2
3
4
5
6
7
8
9
16384
65536
OUTPUT GLITCH (nV–sec)
CODE
114688
163840
212992
262144
311296
360448
409600
458752
507904
557056
606208
655360
704512
753664
802816
851968
901120
950272
999424
POSITIVE CODE
CHANGE
NEGATIVE CODE
CHANGE
5V
OUTPUT GAIN OF 1
BIAS COMPENSA
TION MODE
20pF COMPENS
ATION CAP
ACITOR
RC LOW-
PASS FIL
TER
09092-059
V
REF
Figure 42. 6 MSB Segment Glitch Energy for ±10 V V
REF
4.0
0
2.0
1.5
1.0
0.5
2.5
3.0
3.5
16384
65536
OUTPUT GLITCH (nV–sec)
CODE
114688
163840
212992
262144
311296
360448
409600
458752
507904
557056
606208
655360
704512
753664
802816
851968
901120
950272
999424
POSITIVE CODE
CHANGE
NEGATIVE CODE
CHANGE
10V V
REF
OUTPUT GAIN OF 1
BIAS COMPENS
ATION MODE
20pF COMPENSA
TION CAPACITOR
RC LOW-PASS FILTER
09092-060
Figure 43. 6 MSB Segment Glitch Energy for 10 V V
REF
3.0
–0.2
2.2
1.0
1.4
1.8
0.6
0.2
2.6
16384
65536
OUTPUT GLITCH (nV–sec)
CODE
114688
163840
212992
262144
311296
360448
409600
458752
507904
557056
606208
655360
704512
753664
802816
851968
901120
950272
999424
NEGATIVE CODE
CHANGE
5V
V
REF
OUTPUT GAIN OF 1
BIAS COMPENS
ATION MODE
20pF COMPENS
ATION CA
P
ACIT
OR
RC LOW-
PASS FI
L
TER
POSITIVE CODE
CHANGE
09092-061
Figure 44. 6 MSB Segment Glitch Energy for 5 V V
REF
40
–20
–10
0
10
20
30
–1.0 –0.5 2.01.5
1.0
0.50
V
OUT
(mV)
TIME (
µs)
±10V V
REF
OUTPUT GAIN OF 1
BIAS COMPENSA
TION MODE
20pF COMPENSA
TION CAPACI
TOR
RC LOW-PASS FI
LTER
C
X
= 143pF + 0pF
C
X
= 143pF + 220pF
C
X
= 143pF + 470pF
C
X
= 143pF + 1,000pF
09092-062
Figure 45. Midscale Peak-to-Peak Glitch for ±10 V
800
600
400
200
0
–200
–400
–600
0 1 2 3
4 5 6 7 8 9 10
TIME (Seconds)
OUTPUT VOLTAGE (nV)
09092-044
MID-SCALE CODE LOADED
OUTPUT UNBUFFERED
AD8676 REFERENCE BUFFERS
T
A
= 25°C
V
DD
= +15V
V
SS
= –15V
V
REFP
= +10V
V
REFN
= –10V
Figure 46. Voltage Output Noise, 0.1 Hz to 10 Hz Bandwidth