Overview
The LTC2492IDE#PBF is a high-precision 24-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device features Easy Drive technology, which eliminates dynamic input current errors and the shortcomings of on-chip buffering, allowing for the direct digitization of high-impedance sensors and rail-to-rail input signals while maintaining exceptional DC accuracy. The LTC2492 is designed to support up to 2 differential or 4 single-ended analog input channels and includes an integrated high-accuracy temperature sensor and oscillator.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | LTC2492IDE#PBF |
| Package Description | 14-Lead DFN (4mm x 3mm w/ EP) |
| Pin Count | 14 |
| Converter Type | ΔΣ ADC |
| Number of Bits | 24 |
| Number of Analog In Channels | Up to 2 differential or 4 single-ended |
| Supply Voltage-Nom | 5 V |
| Operating Temperature-Min | -40 °C |
| Operating Temperature-Max | 85 °C |
| Conversion Time-Max | 163.5 ms |
| Linearity Error-Max (EL) | 0.001% |
| Output Format | SERIAL |
| Technology | CMOS |
Key Features
- Easy Drive Technology: Eliminates dynamic input current errors and the shortcomings of on-chip buffering, allowing for direct digitization of high-impedance sensors and rail-to-rail input signals.
- Integrated Temperature Sensor: Offers high accuracy with 1/30th°C resolution and 2°C absolute accuracy.
- Programmable Line Frequency Rejection: Can be programmed to reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
- No Latency: Digital filter settles in a single cycle, even after a new channel is selected.
- Wide Common Mode Input Range: 0V to VCC, independent of the reference voltage.
- Low Noise: 600nV RMS noise.
- High Accuracy: 2ppm INL, 1ppm offset, and 15ppm full-scale error.
Applications
- Instrumentation: Precision measurement instruments, data acquisition systems, and test equipment.
- Industrial Process Control: Monitoring and control of industrial processes, including temperature, pressure, and other parameters.
- Medical Devices: High-accuracy medical diagnostic equipment and patient monitoring systems.
- Aerospace and Defense: High-reliability applications requiring precise analog-to-digital conversion.
Q & A
- What is the resolution of the LTC2492IDE#PBF ADC?
The LTC2492IDE#PBF has a 24-bit resolution.
- How many analog input channels does the LTC2492IDE#PBF support?
It supports up to 2 differential or 4 single-ended analog input channels.
- What is the supply voltage for the LTC2492IDE#PBF?
The nominal supply voltage is 5 V.
- What is the operating temperature range for the LTC2492IDE#PBF?
The operating temperature range is from -40 °C to 85 °C.
- Does the LTC2492IDE#PBF have an integrated temperature sensor?
Yes, it includes a high-accuracy temperature sensor.
- Can the LTC2492IDE#PBF reject line frequencies?
Yes, it can be programmed to reject line frequencies of 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
- What is the noise performance of the LTC2492IDE#PBF?
The device has a 600nV RMS noise.
- Is the LTC2492IDE#PBF suitable for high-impedance sensors?
Yes, it can directly digitize high-impedance sensors due to its Easy Drive technology.
- What is the package type of the LTC2492IDE#PBF?
The package type is a 14-Lead DFN (4mm x 3mm w/ EP).
- Is the LTC2492IDE#PBF RoHS compliant?
Yes, the LTC2492IDE#PBF is RoHS compliant.
