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AK9240 - AFE

General Description

The AK9240 is an Analog Front End with 12-bit 1MSPS A/D converter.

It integrates a programmable gain amplifier (PGA) that is able to select the input current and the input voltage realizing to control the input range.

Key Features

  •  Simultaneous Sampling 12-bit SAR A/D Converter  Sampling Rate: 1MSPS  Differential Inputs  Current Input or Voltage Input Selectable  PGA Function  LED driver  Automatic Power Control Circuit  Low Pass Filter  S/(N+D): 71dB (Typ. ) at 10kHz Input.  INL: ±1.25LSB (Max. )  DNL: ±1.0LSB (Max. )  Power Consumption: 17 mA (Typ. ) at Voltage Input Mode, fs= 1MSPS  Power Supply: 2.7 ~ 5.5V  Operational Temperature Range (Ta): -40 ~ 105ºC  Small Package: 20-pin QFN (3mm x 3mm) LVDD LEDLPF.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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[AK9240] = Preliminary = AK9240 AFE with Dual 12-Bit 1MSPS SAR ADC General Description The AK9240 is an Analog Front End with 12-bit 1MSPS A/D converter. It integrates a programmable gain amplifier (PGA) that is able to select the input current and the input voltage realizing to control the input range. An LED driver and auto power control circuits are also integrated, making the device suitable for compact optical encoders. The AK9240 is housed in a space-saving 20-pin QFN package. Features  Simultaneous Sampling 12-bit SAR A/D Converter  Sampling Rate: 1MSPS  Differential Inputs  Current Input or Voltage Input Selectable  PGA Function  LED driver  Automatic Power Control Circuit  Low Pass Filter  S/(N+D): 71dB (Typ.) at 10kHz Input.  INL: ±1.25LSB (Max.)  DNL: ±1.