參數(shù)資料
型號(hào)： MXB7843EEE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 2.375V to 5.25V, 4-Wire Touch-Screen
中文描述： 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16
封裝： 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16
文件頁(yè)數(shù)： 1/21頁(yè)
文件大?。?/td> 508K
代理商： MXB7843EEE
General Description
The MXB7843 is an industry-standard 4-wire touch-
screen controller. It contains a 12-bit sampling analog-
to-digital converter (ADC) with a synchronous serial
interface and low on-resistance switches for driving
resistive touch screens. The MXB7843 uses an external
reference. The MXB7843 can make absolute or ratio-
metric measurements. The MXB7843 has two auxiliary
ADC inputs. All analog inputs are fully ESD protected,
eliminating the need for external TransZorb devices.
The MXB7843 is guaranteed to operate with a single
2.375V to 5.25V supply voltage. In shutdown mode, the
typical power consumption is reduced to under 0.5μW,
while the typical power consumption at 125ksps
throughput and a 2.7V supply is 650μW.
Low-power operation makes the MXB7843 ideal for bat-
tery-operated systems, such as personal digital assis-
tants with resistive touch screens and other portable
equipment. The MXB7843 is available in 16-pin QSOP
and TSSOP packages, and is guaranteed over the
-40°C to +85°C temperature range.
Applications
Personal Digital Assistants
Portable Instruments
Point-of-Sales Terminals
Pagers
Touch-Screen Monitors
Cellular Phones
Features
o
ESD-Protected ADC Inputs
±15kV IEC 61000-4-2 Air-Gap Discharge
±8kV IEC 61000-4-2 Contact Discharge
o
Pin Compatible with MXB7846
o
+2.375V to +5.25V Single Supply
o
4-Wire Touch-Screen Interface
o
Ratiometric Conversion
o
SPI/QSPI, 3-Wire Serial Interface
o
Programmable 8-/12-Bit Resolution
o
Two Auxiliary Analog Inputs
o
Automatic Shutdown Between Conversions
o
Low Power
270μA at 125ksps
115μA at 50ksps
25μA at 10ksps
5μA at 1ksps
2μA Shutdown Current
M
2.375V to 5.25V, 4-Wire Touch-Screen
Controller
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
V
DD
DCLK
CS
DIN
BUSY
DOUT
PENIRQ
V
DD
REF
TOP VIEW
MXB7843
QSOP/TSSOP
X+
Y+
GND
X-
Y-
IN3
IN4
Pin Configuration
Ordering Information
19-2435; Rev 0; 4/02
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
16 QSOP
16 TSSOP
MXB7843EEE
MXB7843EUE
TransZorb is a trademark of General Semiconductor Industries,
Inc.
SPI/QSPI are trademarks of National Semiconductor Corp.
Typical Application Circuit appears at end of data sheet.
相關(guān)PDF資料
PDF描述
MXB7843EUE 2.375V to 5.25V, 4-Wire Touch-Screen
MXD1000SE__ 5-Tap Silicon Delay Line
MXD1000PA__ 5-Tap Silicon Delay Line
MXD1000PD__ 5-Tap Silicon Delay Line
MXD1000SA__ 5-Tap Silicon Delay Line
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MXB7843EEE+ 功能描述:觸摸屏轉(zhuǎn)換器和控制器 2.375-5.25V 4-Wire Touch-Screen Ctlr 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
MXB7843EEE+T 功能描述:觸摸屏轉(zhuǎn)換器和控制器 2.375-5.25V 4-Wire Touch-Screen Ctlr 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
MXB7843EEE-T 功能描述:觸摸屏轉(zhuǎn)換器和控制器 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
MXB7843EUE 功能描述:觸摸屏轉(zhuǎn)換器和控制器 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
MXB7843EUE+ 功能描述:觸摸屏轉(zhuǎn)換器和控制器 2.375-5.25V 4-Wire Touch-Screen Ctlr 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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