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MAX1233-MAX1234 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1233-MAX1234 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 44 page ±15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (continued) (DVDD = AVDD = +2.7V to +3.6V (MAX1233), DVDD = AVDD = +4.75V to +5.25V (MAX1234), external reference VREF = 2.5V (MAX1233), VREF = 4.096V (MAX1234); fSCLK = 10MHz, fSAMPLE = 50ksps, 12-bit mode, 0.1µF capacitor at REF, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DIGITAL-TO-ANALOG CONVERTER DC ACCURACY Resolution 8 Bits Integral Linearity Error INL (Note 7) ±1.0 LSB Differential Linearity Error DNL No missing codes ±1.0 LSB Offset Error VOS (Note 8) ±1 ±25 mV Offset Error Temperature Coefficient 1 ppm/ °C Full-Scale Error Code = 255, no load 5 % Full-Scale Error Temperature Coefficient Code = 255, no load ±10 ppm/ °C DYNAMIC PERFORMANCE Voltage Output Slew Rate Positive and negative 0.4 V/µs Output Settling Time 0.5LSB; 50k Ω and 50pF load (Note 9) 20 µs Glitch Impulse Code 127 to 128 40 nV/s Wake-Up Time From shutdown 50 µs DAC OUTPUT Internal DAC Reference VREFDAC (Note 10) 0.85 ✕ AVDD 0.9 ✕ AVDD 0.95 ✕ AVDD V Code = 255; 0 to 100µA 0.5 Output Load Regulation Code = 0; 0 to 100µA 0.5 LSB Output Resistance Power-down mode 1.0 M Ω TOUCH-SCREEN CONTROLLER Y+, X+ 7 On-Resistance Y-, X- 9 Ω Touch-Detection Internal Pullup Resistance X+ to AVDD 1M Ω KEYPAD CONTROLLER Pullup Resistance C4, C3, C2, C1 (Note 11) 0.5 k Ω Pulldown Resistance R4, R3, R2, R1 (Note 11) 16 k Ω DIGITAL INTERFACE DIGITAL INPUTS (SCLK, CS, DIN, R_, C_) Input Voltage Low VIL 0.3 ✕ DVDD V Input Voltage High VIH 0.7 ✕ DVDD V Input Leakage Current IL ±0.1 ±1µA |
Similar Part No. - MAX1233-MAX1234 |
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Similar Description - MAX1233-MAX1234 |
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