Overview
The LTC2309CF#PBF, manufactured by Analog Devices Inc., is a low noise, low power, 8-channel, 12-bit successive approximation analog-to-digital converter (ADC) with an I²C compatible serial interface. This ADC is designed to offer high performance and efficiency, making it suitable for a variety of applications, particularly in battery-operated and portable devices. It features an internal reference and a fully differential sample-and-hold circuit to minimize common mode noise. The device operates from a single 5V supply and consumes only 300μA at a throughput rate of 1ksps, entering a low power nap mode when not converting to reduce power dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 8 |
| Conversion Time | 1.3μs |
| Throughput Rate | Up to 14ksps |
| Supply Voltage | 5V |
| Current Consumption | 300μA at 1ksps |
| Power Dissipation | 1.5mW at 1ksps, 35μW in sleep mode |
| Signal-to-Noise Ratio (SNR) | 73.4dB |
| Input Range | Unipolar or Bipolar (software selectable) |
| Interface | I²C compatible serial interface |
| Package Options | 20-pin TSSOP, 24-pin 4mm x 4mm QFN |
| Operating Temperature Range | 0°C to 70°C (for LTC2309CF#PBF) |
Key Features
- Low noise and low power consumption, making it ideal for battery-operated and portable applications.
- Internal 2.5V reference and 8-channel multiplexer to reduce PCB board space requirements.
- Fast conversion time of 1.3μs and a throughput rate of up to 14ksps.
- I²C compatible serial interface with nine addresses plus one global address for synchronization.
- Guaranteed no missing codes and fully differential sample-and-hold circuit to reduce common mode noise.
- Available in small packages: 20-pin TSSOP and 24-pin 4mm x 4mm QFN.
- Guaranteed operation from -40°C to 125°C (depending on the package type).
Applications
The LTC2309CF#PBF is well-suited for a variety of applications, including:
- Battery-operated and portable devices due to its low power consumption.
- Space-constrained systems because of its small package options and I²C interface.
- Industrial process control and motor control systems where precision and low noise are critical.
- Automotive applications where reliability and performance over a wide temperature range are essential.
Q & A
- What is the resolution of the LTC2309CF#PBF ADC?
The LTC2309CF#PBF has a 12-bit resolution. - How many channels does the LTC2309CF#PBF support?
The LTC2309CF#PBF supports 8 channels. - What is the conversion time of the LTC2309CF#PBF?
The conversion time is 1.3μs. - What is the throughput rate of the LTC2309CF#PBF?
The throughput rate is up to 14ksps. - What is the supply voltage for the LTC2309CF#PBF?
The supply voltage is 5V. - How much current does the LTC2309CF#PBF consume at 1ksps?
The current consumption is 300μA at 1ksps. - What is the power dissipation of the LTC2309CF#PBF in sleep mode?
The power dissipation in sleep mode is 35μW. - What type of interface does the LTC2309CF#PBF use?
The LTC2309CF#PBF uses an I²C compatible serial interface. - In what package options is the LTC2309CF#PBF available?
The LTC2309CF#PBF is available in 20-pin TSSOP and 24-pin 4mm x 4mm QFN packages. - What is the operating temperature range for the LTC2309CF#PBF?
The operating temperature range for the LTC2309CF#PBF is 0°C to 70°C.
