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具有超低功耗和断电功能的 10 位、1.25MSPS、单通道 SAR ADC
Resolution (Bits) 10
Number of input channels 1
Sample rate (Max) (kSPS) 1250
Interface type SPI
Architecture SAR
Input type Single-Ended
Rating Catalog
Reference mode Ext
Input range (Max) (V) 5.5
Input range (Min) (V) 0
Operating temperature range (C) -40 to 85, 0 to 70
Power consumption (Typ) (mW) 8
Analog voltage AVDD (Min) (V) 2.7
SNR (dB) 62
Analog voltage AVDD (Max) (V) 5.5
INL (Max) (+/-LSB) 1
Digital supply (Min) (V) 2.7
Digital supply (Max) (V) 5.5
  • Fast Throughput Rate: 1.25 MSPS
  • 8-Pin SOIC Package
  • Differential Nonlinearity Error: < ±1 LSB
  • Integral Nonlinearity Error: < ±1 LSB
  • Signal-to-Noise and Distortion Ratio: 59 dB, f(input) = 500 kHz
  • Single 3-V to 5-V Supply Operation
  • Very Low Power: 8 mW at 3V; 25mW at 5 V
  • Auto-Powerdown: 10 uA Maximum
  • Glueless Serial Interface to TMS320 DSPs and (Q)SPI Compatible Micro-Controllers
  • Inherent Internal Sample and Hold Operation

The TLV1572 is a high-speed 10-bit successive-approximation analog-to-digital converter (ADC) that operates from a single 2.7-V to 5.5-V power supply and is housed in a small 8-pin SOIC package.

The TLV1572 accepts an analog input range from 0 to VCC and digitizes the input at a maximum 1.25 MSPS throughput rate. The power dissipation is only 8 mW with a 3-V supply or 25 mW with a 5-V supply. The device features an auto-powerdown mode that automatically powers down to 10 uA whenever a conversion is not performed.

The TLV1572 communicates with digital microprocessors via a simple 3- or 4-wire serial port that interfaces directly to the Texas Instruments TMS320 DSPs and (Q)SPI compatible microcontrollers without using additional glue logic.

Very high throughput rate, simple serial interface, SO-8 package, 3-V operation, and low power consumption make the TLV1572 an ideal choice for compact or remote high-speed systems.