ISL267452
ISL267452 is 555kSPS SAR ADC manufactured by Renesas.
12-Bit, 555k SPS SAR ADC
The ISL267452 is a 12-bit, 555k SPS sampling SAR-type ADC featuring excellent linearity over supply and temperature variations, and is drop-in patible with the AD7452. The robust, fully-differential input offers high impedance to minimize errors due to leakage currents, and the specified measurement accuracy is maintained with input signals up to the supply rails.
The reference accepts inputs from 0.1V to 2.2V for 3V operation and 0.1V to 3.5V for 5V operation, which provides design flexibility in a wide variety of applications. The ISL267452 also Features up to 8k V Human Body Model ESD survivability.
The serial digital interface is SPI patible and is easily interfaced to all popular FPGAs and microcontrollers. Power dissipation is 7m W at a sampling rate of 555k SPS, and just 5µW between conversions utilizing Auto Power-Down mode (with a 5V supply), making the ISL267452 an excellent solution for remote industrial sensors and battery-powered instruments.
The ISL267452 is available in an 8 LD SOT-23 package, and is specified for operation over the Industrial temperature range (-40°C to +85°C).
VREF
VIN+ VIN-
SAR LOGIC
SERIAL INTERFACE
SCLK SDATA CS
VREF
FIGURE 1. BLOCK DIAGRAM
DNL (LSB)
FN8255 Rev 0.00 July 26, 2012
Features
- Drop-in patible with AD7452
- Differential Input (Span = 2VREF)
- Simple SPI-patible Serial Digital Interface
- Guaranteed No Missing Codes
- 555k Hz Sampling Rate
- 3V or 5V Operation
- Low Operating Current
- 1.25m A at 555k SPS with 3V Supplies
- 1.70m A at 555k SPS with 5V Supplies
- Power-down Current between Conversions: 1µA
- Excellent Differential Non-Linearity
- Low THD: -83d B (typ)
- Pb-Free (Ro HS pliant)
- Available in SOT-23 Package
Applications...
