ADC78H90 - 8 通道、500 KSPS、12 位 A/D 转换器

ADC78H90是TI德州仪器公司的一款精密ADC(<=10MSPS)产品，ADC78H90是8 通道、500 KSPS、12 位 A/D 转换器，本站介绍了ADC78H90的封装应用图解、特点和优点、功能等，并给出了与ADC78H90相关的TI元器件型号供参考。

ADC78H90 - 8 通道、500 KSPS、12 位 A/D 转换器 - 精密ADC(<=10MSPS) - 模数转换器 - 德州仪器

产品描述

The ADC78H90 is a low-power, eight-channel CMOS 12-bit analog-to-digital converter with a conversion throughput of 500 kSPS. The converter is based on a successive-approximation register architecture with an internal track-and-hold circuit. It can be configured to accept up to eight input signals at inputs AIN1 through AIN8.

The output serial data is straight binary, and is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces.

The ADC78H90 may be operated with independent analog and digital supplies. The analog supply (AVDD) can range from +2.7V to +5.25V, and the digital supply (DVDD) can range from +2.7V to AVDD. Normal power consumption using a +3V or +5V supply is 1.5 mW and 8.3 mW, respectively. The power-down feature reduces the power consumption to just 0.3 µW using a +3V supply, or 0.5 µW using a +5V supply.

The ADC78H90 is packaged in a 16-lead TSSOP package. Operation over the industrial temperature range of −40°C to +85°C is ensured.

产品特性

Eight input channels
Variable power management
Independent analog and digital supplies
SPI™/QSPI™/MICROWIRE™/DSP compatible
Packaged in 16-lead TSSOP

Key Specifications

Conversion Rate: 500kSPS
DNL: ± 1LSB (max)
INL: ± 1LSB (max)
Power Consumption
- 3V Supply: 1.5 mW (typ)
- 5V Supply: 8.3 mW (typ)

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