参数资料
型号: AD5781BRUZ-REEL7
厂商: Analog Devices Inc
文件页数: 7/28页
文件大小: 0K
描述: IC DAC 18BIT SRL 20TSSOP
产品变化通告: AD57x1 Feature Change 27/Jul/2011
设计资源: 18-Bit Accurate, low noise, precision bipolar DC voltage source (CN0177)
标准包装: 1,000
设置时间: 1µs
位数: 18
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
电压电源: 模拟和数字,双 ±
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 20-TSSOP
包装: 带卷 (TR)
输出数目和类型: *
采样率(每秒): 1M
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
5
4
3
2
V
O
UT
(m
V)
TIME (s)
±10V VREF
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
O
UT
P
UT
G
L
IT
CH
(
n
V
–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 COMPENSATION MODE
20pF COMPENSATION CAPACITOR
RC LOW-PASS FILTER
09092-
059
VREF
Figure 42. 6 MSB Segment Glitch Energy for ±10 V VREF
4.0
0
2.0
1.5
1.0
0.5
2.5
3.0
3.5
16384
65536
O
UT
P
UT
G
L
IT
CH
(
n
V
–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 VREF
OUTPUT GAIN OF 1
BIAS COMPENSATION MODE
20pF COMPENSATION CAPACITOR
RC LOW-PASS FILTER
09092-
060
Figure 43. 6 MSB Segment Glitch Energy for 10 V VREF
3.0
–0.2
2.2
1.0
1.4
1.8
0.6
0.2
2.6
16384
65536
O
UT
P
UT
G
L
IT
CH
(
n
V
–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 VREF
OUTPUT GAIN OF 1
BIAS COMPENSATION MODE
20pF COMPENSATION CAPACITOR
RC LOW-PASS FILTER
POSITIVE CODE
CHANGE
09092-
061
Figure 44. 6 MSB Segment Glitch Energy for 5 V VREF
40
–20
–10
0
10
20
30
–1.0
–0.5
2.0
1.5
1.0
0.5
0
V
O
UT
(m
V)
TIME (s)
±10V VREF
OUTPUT GAIN OF 1
BIAS COMPENSATION MODE
20pF COMPENSATION CAPACITOR
RC LOW-PASS FILTER
CX = 143pF + 0pF
CX = 143pF + 220pF
CX = 143pF + 470pF
CX = 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)
OU
TP
U
T
V
OLTA
GE
(
nV
)
09092-
044
MID-SCALE CODE LOADED
OUTPUT UNBUFFERED
AD8676 REFERENCE BUFFERS
TA = 25°C
VDD = +15V
VSS = –15V
VREFP = +10V
VREFN = –10V
Figure 46. Voltage Output Noise, 0.1 Hz to 10 Hz Bandwidth
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