VOUT VDD CH1 5.00V CH2 5.0" />
參數(shù)資料
型號: AD7801BRU
廠商: Analog Devices Inc
文件頁數(shù): 13/16頁
文件大小: 0K
描述: IC DAC 8BIT PARALLEL INP 20TSSOP
產(chǎn)品培訓(xùn)模塊: Data Converter Fundamentals
DAC Architectures
標(biāo)準(zhǔn)包裝: 75
設(shè)置時間: 1.2µs
位數(shù): 8
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
功率耗散(最大): 12.9mW
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
輸出數(shù)目和類型: 1 電壓,單極;1 電壓,雙極
采樣率(每秒): 833k
AD7801
–6–
REV. 0
1
2
M20.0ms
VOUT
VDD
CH1
5.00V CH2
5.00V
CH1
T
Figure 11. Power-On—Reset
INPUT CODE (15 to 245)
INL
ERROR
LSB
0
256
32
64
96
128 160
192
224
–0.5
0.4
0.1
–0.1
–0.3
–0.4
0.3
0.2
0
–0.2
0.5
VDD = 5V
INTERNAL REFERENCE
5k
100pF LOAD
LIMITED CODE RANGE (15–245)
TA = +25°C
Figure 14. Integral Linearity Plot
–Typical Performance Characteristics
–25
4
0
7
6
2
1
5
3
8
9
10
–50
0
25
50
75
100
125
TEMPERATURE – C
ZERO
CODE
ERROR
LSB
VDD = 2.7 TO 5.5V
DAC LOADED WITH ALL ZEROES
INTERNAL REFERENCE
Figure 12. Zero Code Error vs.
Temperature
VDD = 5V
INTERNAL REFERENCE
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–60 –40 –20
0
20
40
60
80 100 120 140
INL
ERROR
LSB
TEMPERATURE – C
Figure 15. Typical INL vs. Temperature
2
1
WR
VOUT
VDD = 5V
INTERNAL VOLTAGE
REFERENCE
10 LSB STEP CHANGE
TA = +25 C
CH1 5.00V, CH2 50.0mV, M 250ns
Figure 13. Small-Scale Settling Time
VDD = 5V
INTERNAL REFERENCE
0.5
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
–60 –40 –20
0
20
40
60
80 100 120 140
TEMPERATURE – C
DNL
ERROR
LSB
Figure 16. Typical DNL vs. Temperature
VDD = 5V
0.6
0.4
0.2
0
–60 –40 –20
0
20
40
60
80 100 120 140
TEMPERATURE – C
INT
REFERENCE
ERROR
%
0.8
1.0
Figure 17. Typical Internal Reference
Error vs. Temperature
TEMPERATURE – C
0
–50
–25
150
VDD = 5V
LOGIC INPUTS = VDD OR GND
100
200
300
400
500
600
700
800
900
1000
POWER
DOWN
CURRENT
nA
0
255075
100
Figure 18. Power-Down Current vs.
Temperature
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