Overview
The LTC2473IDD#TRPBF is a high-precision, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2473 series, which features a selectable sampling rate of either 208 samples per second (sps) or 833 sps. The ADC uses a delta-sigma architecture and includes an integrated precision reference with a 2ppm/°C drift performance and 0.1% initial accuracy. It communicates through an I²C interface and operates on a single 2.7V to 5.5V supply. The LTC2473IDD#TRPBF is particularly suited for applications requiring high accuracy and low power consumption, with the ability to power down the converter and reference to reduce supply current to 200nA.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate (Per Second) | Selectable: 208 sps or 833 sps |
| Input Type | Differential |
| Data Interface | I²C |
| Architecture | Sigma-Delta |
| Reference Type | Internal |
| Voltage - Supply, Analog | 2.7V to 5.5V |
| Voltage - Supply, Digital | 2.7V to 5.5V |
| Operating Temperature | -40°C to 85°C |
| Package / Case | 12-Lead DFN (3mm x 3mm w/ EP) |
| Mounting Type | Surface Mount |
| Power Dissipation | 10.5 mW |
| DNL - Differential Nonlinearity | 1 LSB |
| INL - Integral Nonlinearity | 2 LSB |
Key Features
- Selectable sampling rates of 208 sps or 833 sps
- Integrated precision reference with 2ppm/°C drift performance and 0.1% initial accuracy
- I²C interface for communication
- Single 2.7V to 5.5V supply voltage
- Low power consumption with automatic power-down feature, reducing supply current to 200nA when both ADC and reference are powered down
- Proprietary input sampling scheme to reduce average input current significantly compared to conventional delta-sigma converters
- No latency for multiplexed applications due to integrated oscillator
Applications
- Precision measurement systems requiring high accuracy and low noise
- Industrial control and automation systems
- Medical devices and diagnostic equipment
- Aerospace and defense applications where precision and reliability are critical
- Automotive systems requiring robust and accurate data conversion
Q & A
- What is the resolution of the LTC2473IDD#TRPBF ADC?
The LTC2473IDD#TRPBF has a resolution of 16 bits.
- What are the selectable sampling rates of the LTC2473IDD#TRPBF?
The LTC2473IDD#TRPBF has selectable sampling rates of 208 sps or 833 sps.
- What type of input does the LTC2473IDD#TRPBF support?
The LTC2473IDD#TRPBF supports differential inputs.
- What is the communication interface used by the LTC2473IDD#TRPBF?
The LTC2473IDD#TRPBF uses an I²C interface for communication.
- What is the operating temperature range of the LTC2473IDD#TRPBF?
The operating temperature range of the LTC2473IDD#TRPBF is -40°C to 85°C.
- How does the LTC2473IDD#TRPBF manage power consumption?
The LTC2473IDD#TRPBF has an automatic power-down feature that reduces supply current to 200nA when both the ADC and reference are powered down.
- What is the package type of the LTC2473IDD#TRPBF?
The LTC2473IDD#TRPBF is packaged in a 12-Lead DFN (3mm x 3mm w/ EP).
- What is the precision of the integrated reference in the LTC2473IDD#TRPBF?
The integrated reference has a 2ppm/°C drift performance and 0.1% initial accuracy.
- Does the LTC2473IDD#TRPBF have any special features to reduce input current?
Yes, the LTC2473IDD#TRPBF uses a proprietary input sampling scheme to reduce the average input current significantly compared to conventional delta-sigma converters.
- Is there any latency in conversions for multiplexed applications?
No, the LTC2473IDD#TRPBF performs conversions with no latency for multiplexed applications due to its integrated oscillator.
