Overview
The LTC2309IUF#PBF is a low noise, low power, 8-channel, 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This ADC features an I²C compatible serial interface and is designed for applications requiring high precision and low power consumption. It includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise. The device operates from a single 5V supply and is available in a compact 24-pin 4mm x 4mm QFN package, making it ideal for battery-operated and portable applications as well as space-constrained systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 8 |
| Conversion Time | 1.3 μs |
| Throughput Rate | Up to 14 ksps |
| Supply Voltage | 5V |
| Current Consumption | 300 μA at 1 ksps |
| Power Dissipation (Sleep Mode) | 35 μW |
| Internal Reference | 2.5V |
| Sample-and-Hold Circuit | Fully differential |
| Operating Temperature Range | -40°C to 85°C (I-grade) |
| Package Type | 24-pin 4mm x 4mm QFN |
Key Features
- Low noise and low power consumption, making it suitable for battery-operated and portable applications.
- I²C compatible serial interface with nine addresses plus one global address for synchronization.
- Internal 2.5V reference and 8-channel multiplexer to reduce PCB board space requirements.
- Fast conversion time of 1.3 μs.
- Guaranteed no missing codes.
- Low power sleep mode (35 μW).
- Unipolar or bipolar input ranges (software selectable).
- Internal conversion clock.
Applications
The LTC2309IUF#PBF is ideal for various applications, including:
- Battery-operated and portable devices due to its low power consumption and small size.
- Space-constrained systems where the 2-wire I²C interface is beneficial.
- Industrial process control and motor control systems.
- Any application requiring high precision, low noise, and efficient power management.
Q & A
- What is the resolution of the LTC2309IUF#PBF ADC?
The LTC2309IUF#PBF has a 12-bit resolution. - How many channels does the LTC2309IUF#PBF support?
The LTC2309IUF#PBF supports 8 channels. - What is the conversion time of the LTC2309IUF#PBF?
The conversion time is 1.3 μs. - What is the throughput rate of the LTC2309IUF#PBF?
The throughput rate is up to 14 ksps. - What is the supply voltage for the LTC2309IUF#PBF?
The supply voltage is 5V. - How much current does the LTC2309IUF#PBF consume at 1 ksps?
The current consumption is 300 μA at 1 ksps. - What is the power dissipation in sleep mode?
The power dissipation in sleep mode is 35 μW. - Does the LTC2309IUF#PBF have an internal reference?
Yes, it has an internal 2.5V reference. - What type of sample-and-hold circuit does the LTC2309IUF#PBF use?
The LTC2309IUF#PBF uses a fully differential sample-and-hold circuit. - What are the operating temperature ranges for the LTC2309IUF#PBF?
The operating temperature range is -40°C to 85°C for the I-grade package.
