AD7452BRTZ-R2

• Product introduction

AD7452BRTZ-R2  差分输入、555 kSPS、12位ADC，采用8引脚SOT-23封装

The AD7452 is a 12-bit, low power, successive approximation (SAR) analog-to-digital converter (ADC) with a fully differential analog input and operates from a single 3 V or 5 V supply with a maximum throughput of 555 kSPS.

The device contains a low noise, wide bandwidth, differential sample-and-hold (T/H) amplifier that can handle input frequencies above 1 MHz with a typical -3 dB bandwidth of 20 MHz. The external reference voltage is via V_REF Pin input, which varies from 100 mV to 3.5 V, depending on the supply and application. The reference voltage value determines the common-mode voltage range of the device. This true differential input structure and variable reference input allow the user to select a variety of input ranges and bias points.

The conversion process and data acquisition passed.CSControl with the serial clock, thus providing the device with microprocessoror DSP interface created the conditions. The input signal is in.CSis sampled on the falling edge, and the transformation starts here at the same time.

The device uses a SAR architecture to ensure no pipeline delay.

The AD7452 uses advanced design techniques to achieve very low power consumption at high throughput.

• Rated voltage (V_DD ): 3 V and 5 V
• Low power consumption (at maximum throughput):
  - 7.25 mW maximum (555 kSPS, 5 V supply)
  - 3.3 mW maximum (555 kSPS, 3 V supply)
• Fully differential analog input
• Wide input bandwidth:
  - 70 dB signal-to-nar ratio (100 kHz input frequency)

• Flexible power/serial clock speed management
• No pipeline delay
• HIGH-SPEED SERIAL INTERFACE: SPI/QSPI®™/MICROWIRE™/DSP compatible
• Power-down mode: 1 μA maximum
• 8-pin SOT-23 package

Temperature sensor