LTC2309
PRODUCTION8-Channel, 12-Bit SAR ADC with I2C Interface
- Part Models
- 10
- 1ku List Price
- Starting From $3.86
Part Details
- 12-Bit Resolution
- Low Power: 1.5mW at 1ksps, 35μW Sleep Mode
- 14ksps Throughput Rate
- Low Noise: SNR = 73.4dB
- Guaranteed No Missing Codes
- Single 5V Supply
- 2-Wire I2C Compatible Serial Interface with Nine Addresses Plus One Global for Synchronization
- Fast Conversion Time: 1.3μs
- Internal Reference
- Internal 8-Channel Multiplexer
- Internal Conversion Clock
- Unipolar or Bipolar Input Ranges (Software Selectable)
- Guaranteed Operation from –40°C to 125°C (TSSOP Package)
- 24-Pin 4mm × 4mm QFN and 20-Pin TSSOP Packages
The LTC2309 is a low noise, low power, 8-channel, 12-bit successive approximation ADC with an I2C compatible serial interface. This ADC includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise. The LTC2309 operates from an internal clock to achieve a fast 1.3μs conversion time.
The LTC2309 operates from a single 5V supply and draws just 300μA at a throughput rate of 1ksps. The ADC enters nap mode when not converting, reducing the power dissipation.
The LTC2309 is available in both a small 24-pin 4mm × 4mm QFN and a 20-pin TSSOP package. The internal 2.5V reference and 8-channel multiplexer further reduce PCB board space requirements.
The low power consumption and small size make the LTC2309 ideal for battery-operated and portable applications, while the 2-wire I2C compatible serial interface makes this ADC a good match for space-constrained systems.
Applications
- Industrial Process Control
- Motor Control
- Accelerometer Measurements
- Battery-Operated Instruments
- Isolated and/or Remote Data Acquisition
- Power Supply Monitoring
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Product Selector Card 2
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 |
|---|---|---|---|
| LTC2309CF#PBF | 20-Lead TSSOP | ||
| LTC2309CF#TRPBF | 20-Lead TSSOP | ||
| LTC2309CUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2309CUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2309HF#PBF | 20-Lead TSSOP | ||
| LTC2309HF#TRPBF | 20-Lead TSSOP | ||
| LTC2309IF#PBF | 20-Lead TSSOP | ||
| LTC2309IF#TRPBF | 20-Lead TSSOP | ||
| LTC2309IUF#PBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) | ||
| LTC2309IUF#TRPBF | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 6, 2022 - 22_0068 Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL |
||
| LTC2309CF#PBF | PRODUCTION | |
| LTC2309CF#TRPBF | PRODUCTION | |
| LTC2309HF#PBF | PRODUCTION | |
| LTC2309HF#TRPBF | PRODUCTION | |
| LTC2309IF#PBF | PRODUCTION | |
| LTC2309IF#TRPBF | PRODUCTION | |
|
Jan 20, 2022 - 21_0269 Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products |
||
| LTC2309CUF#PBF | PRODUCTION | |
| LTC2309CUF#TRPBF | PRODUCTION | |
| LTC2309IUF#PBF | PRODUCTION | |
| LTC2309IUF#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Tools & Simulations
Linduino 3
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
LTC2309 Demo Board | 12-Bit, 8-Channel SAR ADC with I2C I/F (requires DC2026)