- Código RS:
- 183-1838P
- Referência do fabricante:
- AD7843ARQZ
- Fabricante:
- Analog Devices
Produto Descatalogado
- Código RS:
- 183-1838P
- Referência do fabricante:
- AD7843ARQZ
- Fabricante:
- Analog Devices
Documentação Técnica
Legislação e Conformidade
Detalhes do produto
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
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
Especificações
Atributo | Valor |
---|---|
Tasa de Conversión | 125ksps |
Resolución | 12 bit |
Tipo de Montaje | Montaje superficial |
Tipo de Encapsulado | QSOP |
Conteo de Pines | 16 |
Tensión de Alimentación de Funcionamiento Típica | Single |
Dimensiones | 5 x 4.01 x 1.65mm |
Tipo de Sensor | Digitalizadores de pantalla táctil |
Longitud | 5mm |
Ancho | 4.01mm |
Altura | 1.65mm |
Temperatura Máxima de Funcionamiento | +85 °C |
Temperatura de Funcionamiento Mínima | -40 °C |