Overview
The LTC2309CF#TRPBF is a high-performance, 8-channel, 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for low noise and low power consumption, making it ideal for battery-operated and portable applications. The LTC2309 features an I²C compatible serial interface, an internal 2.5V reference, and a fully differential sample-and-hold circuit to reduce common mode noise. It operates from a single 5V supply and achieves a fast 1.3μs conversion time at a throughput rate of 1ksps.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 12-bit |
| Conversion Time | 1.3μs |
| Throughput Rate | 1ksps |
| Supply Voltage | 5V |
| Current Consumption | 300μA at 1ksps |
| Interface | I²C compatible serial interface |
| Internal Reference | 2.5V |
| Package Options | 20-pin TSSOP, 24-pin QFN (4mm × 4mm × 0.75mm w/ EP) |
Key Features
- Low noise and low power consumption, making it suitable for battery-operated and portable applications.
- Internal 2.5V reference and fully differential sample-and-hold circuit to reduce common mode noise.
- I²C compatible serial interface for easy communication in space-constrained systems.
- Fast conversion time of 1.3μs and a throughput rate of 1ksps.
- Operates from a single 5V supply and enters nap mode when not converting to reduce power dissipation.
- Available in both 20-pin TSSOP and 24-pin QFN packages, reducing PCB board space requirements.
Applications
The LTC2309 is particularly suited for applications where low power consumption and high accuracy are critical. These include:
- Battery-operated devices and portable electronics.
- Space-constrained systems where the small package size and I²C interface are advantageous.
- Data acquisition systems requiring multiple channels and low noise performance.
- Medical devices and industrial control systems where precision and reliability are essential.
Q & A
- What is the resolution of the LTC2309 ADC?
The LTC2309 has a resolution of 12 bits.
- How many channels does the LTC2309 support?
The LTC2309 supports 8 channels.
- What is the conversion time of the LTC2309?
The conversion time of the LTC2309 is 1.3μs.
- What is the throughput rate of the LTC2309?
The throughput rate of the LTC2309 is 1ksps.
- What is the supply voltage for the LTC2309?
The LTC2309 operates from a single 5V supply.
- How much current does the LTC2309 consume at 1ksps?
The LTC2309 consumes 300μA at a throughput rate of 1ksps.
- What interface does the LTC2309 use for communication?
The LTC2309 uses an I²C compatible serial interface.
- Does the LTC2309 have an internal reference voltage?
Yes, the LTC2309 has an internal 2.5V reference voltage.
- In what packages is the LTC2309 available?
The LTC2309 is available in both 20-pin TSSOP and 24-pin QFN packages.
- What are some typical applications for the LTC2309?
Typical applications include battery-operated devices, portable electronics, data acquisition systems, and medical devices.
