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參數(shù)資料
型號: AD7873BRQZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 25/29頁
文件大?。?/td> 0K
描述: IC ADC 12BIT TOUCHSCREEN 16QSOP
標準包裝: 1,000
類型: 電阻
觸摸面板接口: 4 線
輸入數(shù)/鍵: 1 TSC
分辨率(位): 12 b
評估套件: 可供
數(shù)據(jù)接口: 串行
數(shù)據(jù)速率/采樣率 (SPS,BPS): 125k
電壓基準: 外部,內(nèi)部
電源電壓: 2.2 V ~ 5.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應商設備封裝: 16-QSOP
包裝: 帶卷 (TR)
AD7873
Data Sheet
Rev. F | Page 4 of 28
Parameter
AD7873A1
AD7873B1
Unit
Test Conditions/Comments
LOGIC OUTPUTS
Output High Voltage, VOH
VCC – 0.2
V min
ISOURCE = 250 A; VCC = 2.2 V to 5.25 V
Output Low Voltage, VOL
0.4
V max
ISINK = 250 A
PENIRQ Output Low Voltage, VOL
0.4
V max
100 kΩ pull-up; ISINK = 250 A
Floating-State Leakage Current
±10
A max
Floating-State Output Capacitance5
10
pF max
Output Coding
Straight (Natural) Binary
CONVERSION RATE
Conversion Time
12
DCLK cycles max
Track-and-Hold Acquisition Time
3
DCLK cycles min
Throughput Rate
125
kSPS max
POWER REQUIREMENTS
+VCC (Specified Performance)
2.7/3.6
V min/max
Functional from 2.2 V to 5.25 V
Digital I/Ps = 0 V or VCC
Normal Mode (fSAMPLE = 125 kSPS)
380
A max
Internal reference off, VCC = 3.6 V, 240 A typ
670
A typ
Internal reference on, VCC = 3.6 V
Normal Mode (fSAMPLE = 12.5 kSPS)
170
A typ
Internal reference off, VCC = 2.7 V, fDCLK = 200 kHz
Normal Mode (Static)
150
A typ
Internal reference off, VCC = 3.6 V
580
A typ
Internal reference on, VCC = 3.6 V
Shutdown Mode (Static)
1
A max
200 nA typ
Power Dissipation6
Normal Mode (fSAMPLE = 125 kSPS)
1.368
mW max
Internal reference off, VCC = 3.6 V
2.412
mW typ
Internal reference on, VCC = 3.6 V
Shutdown
3.6
W max
VCC = 3.6 V
1
Temperature range as follows: A, B Versions: –40°C to +85°C.
2
See the Terminology section.
3
Difference between TEMP0 and TEMP1 measurement. No calibration necessary.
4
Temperature drift is –2.1 mV/°C.
5
Sample tested @ 25°C to ensure compliance.
6
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