參數(shù)資料
型號(hào)： ADS7845E
英文描述： TOUCH SCREEN CONTROLLER
中文描述： 觸摸屏控制器
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 173K
代理商： ADS7845E
2
ADS7845
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION
12
Bits
ANALOG INPUT
Full-Scale Input Span
Absolute Input Range
Positive Input - Negative Input
Positive Input
Negative Input
0
V
REF
V
V
V
pF
μ
A
–0.2
–0.2
+V
CC
+0.2
Capacitance
Leakage Current
25
0.1
SYSTEM PERFORMANCE
No Missing Codes
Integral Linearity Error
Offset Error
Gain Error
Noise
Power Supply Rejection Ratio
11
Bits
LSB
(1)
LSB
LSB
μ
Vrms
dB
±
2
±
6
±
4
30
70
SAMPLING DYNAMICS
Conversion Time
Acquisition Time
Throughput Rate
Multiplexer Settling Time
Aperture Delay
Aperture Jitter
Channel-to-Channel Isolation
12
Clk Cycles
Clk Cycles
kHz
ns
ns
ps
dB
3
125
500
30
100
100
V
IN
= 2.5Vp-p at 50kHz
SWITCH DRIVERS
On-Resistance
UL, UR
LL, LR
7
7
REFERENCE INPUT
Range
Resistance
Input Current
1.0
+V
CC
V
CS = GND or +V
CC
5
13
2.5
0.001
G
μ
A
μ
A
μ
A
40
f
SAMPLE
= 12.5kHz
CC
3
DIGITAL INPUT/OUTPUT
Logic Family
Logic Levels, Except PENIRQ
V
IH
V
IL
V
OH
V
OL
PENIRQ
V
OL
Data Format
CMOS
| I
IH
|
≤
+5
μ
A
| I
IL
|
≤
+5
μ
A
I
OH
= –250
μ
A
I
OL
= 250
μ
A
+V
CC
0.7
–0.3
+V
CC
0.8
+V
CC
+0.3
+0.8
V
V
V
0.4
T
A
= 0
°
C to +85
°
C, 100k
Pull-Up
0.8
V
Straight Binary
POWER SUPPLY REQUIREMENTS
+V
CC
Quiescent Current
Specified Performance
(2)
2.7
5.5
650
V
μ
A
μ
A
μ
A
280
220
f
SAMPLE
= 12.5kHz
Shutdown Mode with
DCLK = DIN = +V
CC
+V
CC
= +2.7V
3
Power Dissipation
1.8
mW
TEMPERATURE RANGE
Specified Performance
–40
+85
°
C
SPECIFICATIONS
At T
= –40
°
C to +85
°
C, +V
CC
= +2.7V, V
REF
= +2.5V, f
SAMPLE
= 125kHz, f
CLK
= 16 f
SAMPLE
= 2MHz, 12-bit mode, and digital inputs = GND or +V
CC
, unless
otherwise noted.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
ADS7845E
NOTE: (1) LSB means Least Significant Bit. With V
REF
equal to +2.5V, one LSB is 610
μ
V. (2) ADS7845 will operate down to 2.0V.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7845E 制造商:Texas Instruments 功能描述:5 WIRE TOUCH SCREEN CONTR 16SSOP 制造商:Texas Instruments 功能描述:5 WIRE TOUCH SCREEN CONTR, 16SSOP 制造商:Texas Instruments 功能描述:5 WIRE TOUCH SCREEN CONTR, 16SSOP; Interface Type:5 Wire, Serial, SPI; Resolution (Bits):12bit; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Digital IC Case Style:MSOP; No. of Pins:16; Operating Temperature Min:-40C; Operating ;RoHS Compliant: Yes
ADS7845E 制造商:Texas Instruments 功能描述:IC's
ADS7845E/2K5 功能描述:觸摸屏轉(zhuǎn)換器和控制器 5-wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
ADS7845E/2K5G4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 5-wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
ADS7845EG4 功能描述:觸摸屏轉(zhuǎn)換器和控制器 5-wire Touch Screen Controller RoHS:否 制造商:Microchip Technology 類型:Resistive Touch Controllers 輸入類型:3 Key 數(shù)據(jù)速率:140 SPS 分辨率:10 bit 接口類型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 電源電壓:2.5 V to 5.25 V 電源電流:17 mA 工作溫度:- 40 C to + 85 C 封裝 / 箱體:SSOP-20
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