參數(shù)資料
型號: ADS1222IPWT
廠商: Texas Instruments
文件頁數(shù): 21/26頁
文件大小: 0K
描述: IC 24BIT ADC W/2CH MUX 14-TSSOP
產(chǎn)品培訓模塊: Data Converter Basics
視頻文件: Nuts and Bolts of the Delta-Sigma Converter
標準包裝: 1
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
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應商設備封裝: 14-TSSOP
包裝: 標準包裝
輸入數(shù)目和類型: 4 個單端,單極;2 個差分,雙極
其它名稱: 296-17321-6
ADS1222
SBAS314B APRIL 2004 REVISED JANUARY 2009
www.ti.com
4
ELECTRICAL CHARACTERISTICS (continued)
All specifications at TA = 40°C to +85°C, VDD = +5V, fCLK = 2MHz, and VREF = +2.5V, unless otherwise noted.
PARAMETER
UNIT
MAX
TYP
MIN
TEST CONDITIONS
Digital Input/Output
VIH
0.8 VDD
VDD + 0.1
V
Logic
VIL
GND 0.1
0.2 VDD
V
Logic
levels
VOH
IOH = 1mA
0.8 VDD
V
levels
VOL
IOL = 1mA
0.2 VDD
V
Input leakage
±10
A
CLK frequency (fCLK)
8
MHz
CLK duty cycle
30
70
%
Power Supply
VDD
2.7
5.5
V
Standby mode
< 1
A
VDD = 5V, normal mode, buffer off
300
A
VDD current
VDD = 5V, normal mode, buffer on
425
A
VDD current
VDD = 3V, normal mode, buffer off
275
A
VDD = 3V, normal mode, buffer on
395
A
Total power dissipation
VDD = 5V, buffer off
1.5
2.25
mW
Total power dissipation
VDD = 3V, buffer off
0.8
mW
Temperature Range
Specified
40
+85
°C
Operating
55
+125
°C
Storage
60
+150
°C
(1) SPS = samples per second.
(2) FSR = full-scale range = 4VREF.
(3) It will not be possible to reach the digital output full-scale code when VREF > VDD/2.
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