參數(shù)資料
型號(hào): ADS1222IPWR
廠(chǎng)商: Texas Instruments
文件頁(yè)數(shù): 23/26頁(yè)
文件大?。?/td> 0K
描述: IC 24BIT ADC W/2CH MUX 14-TSSOP
產(chǎn)品培訓(xùn)模塊: Data Converter Basics
視頻文件: Nuts and Bolts of the Delta-Sigma Converter
標(biāo)準(zhǔn)包裝: 2,000
位數(shù): 24
采樣率(每秒): 240
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 2.25mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類(lèi)型: 4 個(gè)單端,單極;2 個(gè)差分,雙極
ADS1222
SBAS314B APRIL 2004 REVISED JANUARY 2009
www.ti.com
6
TYPICAL CHARACTERISTICS
At TA = 40°C to +85°C, VDD = +5V, fCLK = 2MHz, and VREF = +2.5V, unless otherwise noted.
Figure 1
ANALOG CURRENT vs TEMPERATURE
Temperature (
_C)
Cu
rr
e
n
t
(
A)
400
375
350
325
300
275
250
225
200
0
25
50
75
125
50
100
f
CLK =4MHz, VDD= 5V
f
CLK =2MHz, VDD = 3V
fCLK =4MHz, VDD= 3V
f
CLK =2MHz, VDD=5V
Buffer Off
Figure 2
f
CLK =4MHz, VDD= 5V
f
CLK =2MHz, VDD=3V
f
CLK =4MHz, VDD= 3V
f
CLK =2MHz, VDD= 5V
Buffer On
ANALOG CURRENT vs TEMPERATURE
Cu
rr
e
n
t
(
A)
550
500
450
400
350
300
Temperature (
_C)
0
25
50
75
125
50
100
Figure 3
ANALOG CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
C
u
rr
ent
(
A)
3.5
3.0
4.0
4.5
5.0
5.5
2.5
500
450
400
350
300
250
Buffer Off
Buffer On
f
CLK =2MHz
f
CLK =2MHz
f
CLK =4MHz
f
CLK =4MHz
Figure 4
TEMPERATURE SENSOR VOLTAGE vs TEMPERATURE
Temperature (
_C)
T
e
mp
er
atu
re
S
ens
or
V
o
lt
age
(m
V
)
5
25
35
65
95
125
55
150
140
130
120
110
100
90
80
70
Figure 5
Input Voltage, V
IN (V)
3
4
2
1
0
12
34
5
10
8
6
4
2
0
2
4
6
8
10
IN
L
(pp
m
o
f
F
S
R
)
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
40_C
+25
_C
+85
_C
f
CLK =2MHz
Buffer Off
Figure 6
1.5
2.5
0.5
1.5
2.5
3.5
INTEGRAL NONLINEARITY vs INPUT VOLTAGE
Input Voltage, V
IN (V)
f
CLK =2MHz
Buffer On
10
8
6
4
2
0
2
4
6
8
10
IN
L
(p
p
m
o
f
F
S
R
)
40_C
+25
_C
+85
_C
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