Overview
The LTC2446IUHF#PBF is a 24-bit high-speed, 8-channel delta-sigma analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for applications requiring precise digitalization of DC components and is particularly useful in scenarios involving multiple sensors such as RTDs, bridges, thermocouples, and voltage or current sensing.
The LTC2446IUHF#PBF features a flexible input multiplexer that supports both single-ended and differential inputs, along with selectable differential reference inputs. This versatility makes it an ideal choice for a wide range of measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 bits |
| Number of Channels | 8 |
| Input Type | Single-ended or differential |
| Reference Inputs | Four sets of differential reference inputs, plus one additional differential reference input |
| Accuracy | 15 ppm (offset, full-scale, linearity) |
| Noise | As low as 200 nVRMS |
| Conversion Speed | Up to 8 kHz |
| Interface Type | Serial (4-wire interface) |
| Operating Temperature Range | –40°C to 85°C |
| Storage Temperature Range | –65°C to 125°C |
| Package Type | 38-lead (5mm × 7mm) plastic QFN |
| Differential Nonlinearity (DNL) | 1 LSB |
Key Features
- High accuracy with 15 ppm offset, full-scale, and linearity.
- Low noise as low as 200 nVRMS.
- Flexible input multiplexer supporting single-ended and differential inputs.
- Selectable multiple reference inputs for ratiometric measurements.
- High-speed conversion up to 8 kHz.
- Low power consumption, reducing to below 10 µA in sleep mode.
- No latency in conversion result while operating in the 1× mode.
- Serial 4-wire interface for data output.
Applications
- Digitalization of DC components in various sensors such as RTDs, bridges, thermocouples, and voltage or current sensing.
- Industrial automation and control systems.
- Medical devices requiring high precision measurements.
- Aerospace and defense applications where high accuracy and reliability are crucial.
- Automotive systems for precise sensor readings.
Q & A
- What is the resolution of the LTC2446IUHF#PBF ADC?
The resolution of the LTC2446IUHF#PBF is 24 bits.
- How many channels does the LTC2446IUHF#PBF support?
The LTC2446IUHF#PBF supports 8 channels.
- What types of inputs does the LTC2446IUHF#PBF support?
The LTC2446IUHF#PBF supports both single-ended and differential inputs.
- What is the accuracy of the LTC2446IUHF#PBF?
The accuracy of the LTC2446IUHF#PBF is 15 ppm (offset, full-scale, linearity).
- What is the maximum conversion speed of the LTC2446IUHF#PBF?
The maximum conversion speed of the LTC2446IUHF#PBF is up to 8 kHz.
- What is the operating temperature range of the LTC2446IUHF#PBF?
The operating temperature range of the LTC2446IUHF#PBF is –40°C to 85°C.
- How does the LTC2446IUHF#PBF reduce power consumption?
The LTC2446IUHF#PBF reduces power consumption to below 10 µA in sleep mode.
- What type of interface does the LTC2446IUHF#PBF use for data output?
The LTC2446IUHF#PBF uses a serial 4-wire interface for data output.
- Is there any latency in the conversion result while operating in the 1× mode?
No, there is no latency in the conversion result while operating in the 1× mode.
- What is the package type of the LTC2446IUHF#PBF?
The package type of the LTC2446IUHF#PBF is a 38-lead (5mm × 7mm) plastic QFN.
