AD7457BRTZ-R2

• Product Introduction

AD7457BRTZ-R2 Pseudo-Differential Input, 100 kSPS, 12-Bit ADC in an 8-Pin SOT-23 Package The AD7457 is a 12-bit, low-power, successive approximation (SAR) analog-to-digital converter (ADC) that uses pseudo-differential analog inputs and operates from a single 2.7V to 5.25V supply with a maximum throughput of 100 kSPS.

.xian { text-decoration: overline; The device has a built-in low-noise, wide-bandwidth, differential sample/hold amplifier (T/H) that can handle input frequencies above 1 MHz. The AD7457's voltage reference is externally applied to the VREF pin and ranges from 100mV to VDD, depending on the application.

The conversion process and data acquisition process are controlled by CS and serial clocks, creating conditions for the device to interface with a microprocessor or DSP.

The SAR architecture ensures no pipeline latency.

The AD7457 features advanced design techniques that enable extremely low power consumption.

• 额定电压(V_DD)：2.7 V至5.25 V
• 极低功耗：
  - 最大 0.9 mW（100 kSPS，V_DD = 3V）
  - 最大 3 mW（100 kSPS，V_DD = 5V）
• 伪差分模拟输入
• 信纳比：70 dB（30 kHz输入频率）

• 无流水线延迟
• 串行接口
  - SPI®/QSPI™/MICROWIRE™/DSP
  兼容
• 自动省电模式
• 8引脚SOT-23封装

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