参数资料
| 型号： | MAX1234ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/44页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR TOUCH 28-TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1，4 x 4 小键盘 |
| 分辨率（位）： | 8，10，12 b |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 50k |
| 电压基准： | 内部 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
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MAX1233/MAX1234
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
______________________________________________________________________________________
11
Typical Operating Characteristics (continued)
(AVDD = DVDD = 3V (MAX1233) or 5V (MAX1234), external VREF = +2.5V (MAX1233), external VREF = +4.096V (MAX1234), fSCLK =
10MHz (50% duty cycle), fSAMPLE = 20ksps, CLOAD = 50pF, 0.1F capacitor at REF, TA = +25°C, unless otherwise noted.)
ADC REFERENCE SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
MAX1233/34
toc27
AVDD (V)
SUPPLY
CURRENT
(μ
A)
4.7
4.2
3.7
3.2
600
650
700
750
550
2.7
5.2
REFERENCE SUPPLY CURRENT
vs. TEMPERATURE
MAX1233/34
toc28
TEMPERATURE (
°C)
SUPPLY
CURRENT
(μ
A)
600
650
700
750
550
80
65
-25
-10
5
35
20
50
-40
PIN
NAME
FUNCTION
1DVDD
Positive Digital Supply Voltage, +2.7V to +3.6V for MAX1233, +4.75V to +5.25V for MAX1234. Bypass
with a 0.1F capacitor. Must be within 300mV of AVDD.
2AVDD
Positive Analog Supply Voltage, +2.7V to +3.6V for MAX1233, +4.75V to +5.25V for MAX1234.
Bypass with a 0.1F capacitor. Must be within 300mV of DVDD.
3*
X+
X+ Position Input
4*
Y+
Y+ Position Input
5*
X-
X- Position Input
6*
Y-
Y- Position Input
7
GND
Analog and Digital Ground
8*
BAT1
Battery Monitoring Input 1. Measures battery voltages up to 6V.
9*
BAT2
Battery Monitoring Input 2. Measures battery voltages up to 6V.
10*
AUX1
Auxiliary Analog Input 1 to ADC. Measures analog voltages from zero to VREF.
11*
AUX2
Auxiliary Analog Input 2 to ADC. Measures analog voltages from zero to VREF.
12
REF
Voltage Reference Output/Input. Reference voltage for analog-to-digital conversion. In internal
reference mode, the reference buffer provides a 2.5V or 1.0V nominal output. In external reference
mode, apply a reference voltage between 1.0V and AVDD. Bypass REF to GND with a 0.1F
capacitor in the external reference mode only.
13
DACOUT
DAC Voltage Output; 0.9
× AVDD Full Scale
14
R4
Keypad Row 4. Can be reconfigured as GPIO3.
15
R3
Keypad Row 3. Can be reconfigured as GPIO2.
16
R2
Keypad Row 2. Can be reconfigured as GPIO1.
17
R1
Keypad Row 1. Can be reconfigured as GPIO0.
18
C1
Keypad Column 1. Can be reconfigured as GPIO4.
Pin Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1234ETI+ | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234ETI+T | 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20 |
| MAX1234EVC16 | 功能描述:数据转换 IC 开发工具 MAX1233/34 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1234EVKIT | 制造商:Maxim Integrated Products 功能描述:+15KV ESD-PROTECTED TOUCH-SCREEN CO - Rail/Tube |
| MAX1236EUA | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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