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±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
ELECTRICAL CHARACTERISTICS (continued)
(DV DD = AV DD = +2.7V to +3.6V (MAX1233), DV DD = AV DD = +4.75V to +5.25V (MAX1234), external reference V REF = 2.5V
(MAX1233), V REF = 4.096V (MAX1234); f SCLK = 10MHz, f SAMPLE = 50ksps, 12-bit mode, 0.1μF capacitor at REF, T A = -40°C to
+85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DIGITAL-TO-ANALOG CONVERTER
DC ACCURACY
Resolution
8
Bits
Integral Linearity Error
Differential Linearity Error
INL
DNL
(Note 7)
No missing codes
± 1.0
± 1.0
LSB
LSB
Offset Error
V OS
(Note 8)
± 1
± 25
mV
Offset Error Temperature
Coefficient
1
ppm/ ° C
Full-Scale Error
Full-Scale Error Temperature
Coefficient
Code = 255, no load
Code = 255, no load
± 10
5
%
ppm/ ° C
DYNAMIC PERFORMANCE
Voltage Output Slew Rate
Output Settling Time
Glitch Impulse
Wake-Up Time
Positive and negative
0.5LSB; 50k Ω and 50pF load (Note 9)
Code 127 to 128
From shutdown
0.4
20
40
50
V/μs
μs
nV/s
μs
DAC OUTPUT
Internal DAC Reference
V REFDAC
(Note 10)
0.85 ?
AV DD
0.9 ?
AV DD
0.95 ?
AV DD
V
Output Load Regulation
Output Resistance
Code = 255; 0 to 100μA
Code = 0; 0 to 100μA
Power-down mode
0.5
0.5
1.0
LSB
M Ω
TOUCH-SCREEN CONTROLLER
On-Resistance
Touch-Detection Internal Pullup
Resistance
Y+, X+
Y-, X-
X+ to AV DD
7
9
1
Ω
M Ω
KEYPAD CONTROLLER
Pullup Resistance
Pulldown Resistance
C4, C3, C2, C1 (Note 11)
R4, R3, R2, R1 (Note 11)
0.5
16
k Ω
k Ω
DIGITAL INTERFACE
DIGITAL INPUTS (SCLK, CS , DIN , R_, C_)
Input Voltage Low
Input Voltage High
V IL
V IH
0.7 ?
DV DD
0.3 ?
DV DD
V
V
Input Leakage Current
I L
± 0.1
± 1
μA
4
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MAX1234EVKIT
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MAX1236EUA
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MAX1236EUA+
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MAX1236EUA+T
功能描述:模数转换器 - ADC 12-Bit 4Ch 94.4ksps 5.5V Precision 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
MAX1236EUA-T
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
MAX1236EVKIT
功能描述:数据转换 IC 开发工具 MAX1236 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
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MAX1236KEUA+
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