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參數(shù)資料
| 型號： | ADS7845 |
| 元件分類： | 通用總線功能 |
| 英文描述： | CMOS 8-Stage Presettable 8-Bit Binary Synchronous Down Counter 16-TSSOP -55 to 125 |
| 中文描述： | 觸摸屏控制器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 173K |
| 代理商： | ADS7845 |
ADS7845
FEATURES
G
5-WIRE TOUCH SCREEN INTERFACE
G
RATIOMETRIC CONVERSION
G
SINGLE SUPPLY: 2V to 5V
G
UP TO 125kHz CONVERSION RATE
G
SERIAL INTERFACE
G
PROGRAMMABLE 8- OR 12-BIT RESOLUTION
G
AUXILIARY ANALOG INPUTS
G
FULL POWER-DOWN CONTROL
DESCRIPTION
The ADS7845 is a 12-bit sampling analog-to-digital
converter (ADC) with a synchronous serial interface
and low on-resistance switches for driving touch
screens. Typical power dissipation is 750
μ
W at a
125kHz throughput rate and a +2.7V supply. The
reference voltage (V
) can be varied between 1V and
+V
, providing a corresponding input voltage range
of 0V to V
. The device includes a shutdown mode
which reduces typical power dissipation to under
0.5
μ
W. The ADS7845 is guaranteed down to 2.7V
operation.
Low power, high speed, and on-board switches make
the ADS7845 ideal for battery-operated systems such
as personal digital assistants with resistive touch screens
and other portable equipment. The ADS7845 is avail-
able in a 16-lead SSOP package and is guaranteed
over the –40
°
C to +85
°
C temperature range.
APPLICATIONS
G
PERSONAL DIGITAL ASSISTANTS
G
PORTABLE INSTRUMENTS
G
POINT-OF-SALES TERMINALS
G
PAGERS
G
TOUCH-SCREEN MONITORS
1998 Burr-Brown Corporation
PDS-1497A
Printed in U.S.A. December, 1998
TOUCH SCREEN CONTROLLER
CDAC
SAR
ADS7845
Comparator
MUX
Serial
Data
Interface
and
Control
DOUT
BUSY
CS
DCLK
DIN
UR
LR
UL
LL
AUX IN
WIPER
PENIRQ
V
REF
GND
Driver
+V
CC
+V
CC
GND
+V
CC
GND
International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111
Twx: 910-952-1111 Internet: http://www.burr-brown.com/ Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
ADS7845
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS7845E | TOUCH SCREEN CONTROLLER |
| ADS7846IGQCR | TOUCH-SCREEN CONTROLLER |
| ADS7846IRGVR | TOUCH-SCREEN CONTROLLER |
| ADS7846IRGVT | TOUCH-SCREEN CONTROLLER |
| ADS7846N | TOUCH-SCREEN CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7845E | 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 | 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 |
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