Overview
The LTC2309CUF#PBF is a high-performance, 8-channel, 12-bit successive approximation analog-to-digital converter (ADC) manufactured 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 ADC features an I²C compatible serial interface and operates from a single 5V supply, drawing only 300μA at a throughput rate of 1ksps. It includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise, and it achieves a fast 1.3μs conversion time using an internal clock.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Description | IC ADC 12BIT SAR 24-QFN |
| Number of Bits | 12 |
| Number of Channels | 8 |
| Sampling Rate | Up to 14 kS/s |
| Supply Voltage (Analog/Digital) | 4.75V to 5.25V |
| Package Type | 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) |
| Operating Temperature | 0°C to 70°C |
| Input Type | Differential, Single-Ended |
| Interface | I²C compatible serial interface |
| Power Consumption | 1.5mW at 1ksps, 35μW in sleep mode |
| Conversion Time | 1.3μs |
| Reference Type | Internal, External |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- Low noise and low power consumption, making it suitable for battery-operated and portable applications.
- 12-bit resolution with 8 input channels.
- I²C compatible serial interface with nine addresses plus one global address for synchronization.
- Internal 2.5V reference and fully differential sample-and-hold circuit to reduce common mode noise.
- Fast conversion time of 1.3μs using an internal clock.
- Single 5V supply operation.
- Selectable address feature.
- Low power dissipation: 1.5mW at 1ksps and 35μW in sleep mode.
- Available in 24-pin QFN and 20-pin TSSOP packages.
Applications
The LTC2309CUF#PBF is well-suited for a variety of applications due to its low power consumption, small size, and high performance. Some key applications include:
- Battery-operated devices and portable electronics.
- Industrial process control and motor control systems.
- Space-constrained systems where the 2-wire I²C interface is beneficial.
- Medical devices requiring low noise and high accuracy ADCs.
- Automotive and aerospace applications where reliability and low power are critical.
Q & A
- What is the resolution and number of channels of the LTC2309CUF#PBF?
The LTC2309CUF#PBF has a 12-bit resolution and 8 input channels.
- What is the operating voltage range of the LTC2309CUF#PBF?
The device operates from a single 5V supply within the range of 4.75V to 5.25V.
- What is the maximum sampling rate of the LTC2309CUF#PBF?
The maximum sampling rate is up to 14 kS/s.
- What type of interface does the LTC2309CUF#PBF use?
The device uses an I²C compatible serial interface.
- How much power does the LTC2309CUF#PBF consume at 1ksps?
The device consumes 1.5mW at 1ksps and 35μW in sleep mode.
- What is the conversion time of the LTC2309CUF#PBF?
The conversion time is 1.3μs.
- Does the LTC2309CUF#PBF have an internal reference?
Yes, it includes an internal 2.5V reference.
- What are the available package types for the LTC2309CUF#PBF?
The device is available in 24-pin QFN and 20-pin TSSOP packages.
- Is the LTC2309CUF#PBF RoHS compliant?
Yes, the device is lead free and RoHS compliant.
- What is the operating temperature range of the LTC2309CUF#PBF?
The operating temperature range is 0°C to 70°C.
