LTC2308
PRODUCTIONLow Noise, 500ksps, 8-Channel, 12-Bit ADC
- Part Models
- 4
- 1ku List Price
- Starting From $3.70
Part Details
- 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.
Applications
- High Speed Data Acquisition
- Industrial Process Control
- Motor Control
- Accelerometer Measurements
- Battery Operated Instruments
- Isolated and/or Remote Data Acquisition
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Device Drivers 1
Product Selector Card 2
Webcast 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2308CUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2308CUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2308IUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2308IUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC2308CUF#PBF | PRODUCTION | |
| LTC2308CUF#TRPBF | PRODUCTION | |
| LTC2308IUF#PBF | PRODUCTION | |
| LTC2308IUF#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 1
LinearLab Tools
A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| I²C Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
Tools & Simulations
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2308 |12-Bit, 8-Channel SAR ADC with SPI I/F, (Requires DC590 for DC, DC890 for AC apps)
Resources
Reference Designs
Part Used
