Features and Benefits
- 12-Bit Resolution
- 500ksps Sampling Rate
- Low Noise: SINAD = 73.3dB
- Guaranteed No Missing Codes
- Single 5V Supply
- Auto-Shutdown Scales Supply Current with Sample Rate
- Low Power:
- 17.5mW at 500ksps
- 0.9mW Nap Mode
- 35µW Sleep Mode
- Internal Reference
- Internal 8-Channel Multiplexer
- Internal Conversion Clock
- SPI/MICROWIRE™ Compatible Serial Interface
- Unipolar or Bipolar Input Ranges (Software Selectable)
- Separate Output Supply OVDD (2.7V to 5.25V)
- 24-Pin 4mm × 4mm QFN Package
The LTC2308 is a low noise, 500ksps, 8-channel, 12-bit ADC with an SPI/MICROWIRE compatible serial interface. This ADC includes an internal reference and a fully differential sample-and-hold circuit to reduce common-mode noise. The internal conversion clock allows the external serial output data clock (SCK) to operate at any frequency up to 40MHz.
The LTC2308 operates from a single 5V supply and draws just 3.5mA at a sample rate of 500ksps. The auto-shutdown feature reduces the supply current to 200µA at a sample rate of 1ksps.
The LTC2308 is packaged in a small 24-pin 4mm × 4mm QFN. The internal 2.5V reference and 8-channel multiplexer further reduce PCB board space requirements.
The low power consumption and small size make the LTC2308 ideal for battery operated and portable applications, while the 4-wire SPI compatible serial interface makes this ADC a good match for isolated or remote data acquisition systems.
- High Speed Data Acquisition
- Industrial Process Control
- Motor Control
- Accelerometer Measurements
- Battery Operated Instruments
- Isolated and/or Remote Data Acquisition
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Software & Systems Requirements
Tools & Simulations
LTC2308 Companion Parts
Recommended µModule Isolator
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.