■ 제품필수정보

제조사	Analog Devices
제조사품명	AD7843ARQZ
간략설명	AD7843ARQZ, Touch Screen Digitizer, 12 bit 125ksps, 16-Pin QSOP

■ 제품사양

Conversion Rate = 125ksps Resolution = 12 bit
장착형태 = Surface Mount
패키지 = QSOP
핀수 = 16
일반 작동 공급 전압 = Single
크기 = 5 x 4.01 x 1.65mm Length = 5mm Width = 4.01mm
높이 = 1.65mm
최대 작동 온도 = +85 °C
최소 작동 온도 = -40 °C The AD7843 is a 12-bit successive-approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The part operates from a single 2.2 V to 5.25 V power supply and features throughput rates greater than 125 kSPS. The external reference applied to the AD7843 can be varied from 1 V to +VCC, while the analog input range is from 0 V to VREF. The device includes a shutdown mode that reduces the current consumption to less than 1 μA. This part is available in a 16-lead 0.15??Quarter Size Outline (QSOP) package and a 16-lead Thin Shrink Small Outline (TSSOP) package.4-wire touch screen interface Specified throughput rate of 125 kSPS Low power consumption: 1.37 mW max at 125 kSPS with VCC = 3.6 V Single supply, VCC of 2.2 V to 5.25 V Ratiometric conversion High speed serial interface Programmable 8-bit or 12-bit resolution 2 auxiliary analog inputs Shutdown mode: 1 μA max 16-lead QSOP and TSSOP packages