Overview
The LTC1272-3CCSW#TRPBF is a 12-bit, successive approximation sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is known for its high speed and accuracy, featuring a conversion time of 3µs. It is designed with LTBiCMOS™ switched-capacitor technology, which combines a fast and accurate sample-and-hold circuit with a precision reference. The LTC1272 is compatible with single 5V supply operation and can also be used with the 5V/–15V supplies required by the industry-standard AD7572, although the negative supply pin is not connected in the LTC1272. This ADC is versatile and can interface easily with both 8-bit and higher processors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Conversion Time | 3µs (speed grade) |
| Sampling Rate | Up to 250kHz |
| Supply Voltage | Single 5V or 5V/–15V |
| Input Range | 0V to 5V |
| Reference Output | 2.42V |
| Sample-and-Hold Acquisition Time | 1µs |
| Package Type | 24-Lead SOIC (Wide 0.3 Inch) |
| Clock Source | Crystal or external clock |
Key Features
- High-speed conversion time of 3µs or 8µs (depending on the speed grade)
- On-chip sample-and-hold circuit with 1µs acquisition time
- Single supply operation with a 5V supply, or compatible with 5V/–15V supplies
- Precision reference output of 2.42V
- Compatible pinout with the industry-standard AD7572
- Output data can be read as a 12-bit word or as two 8-bit bytes
- Supports interface with both 8-bit and higher processors
Applications
The LTC1272-3CCSW#TRPBF is suitable for a variety of applications that require high-speed and accurate analog-to-digital conversion. These include:
- Data acquisition systems
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems requiring high-speed data conversion
Q & A
- What is the resolution of the LTC1272-3CCSW#TRPBF ADC?
The resolution of the LTC1272-3CCSW#TRPBF is 12-bit.
- What is the conversion time of the LTC1272-3CCSW#TRPBF?
The conversion time is 3µs for this specific speed grade.
- What are the supply voltage options for the LTC1272-3CCSW#TRPBF?
The component can operate with a single 5V supply or with 5V/–15V supplies.
- What is the input range of the LTC1272-3CCSW#TRPBF?
The input range is 0V to 5V.
- Can the LTC1272-3CCSW#TRPBF be used with both 8-bit and higher processors?
Yes, it can interface with both 8-bit and higher processors.
- What is the sample-and-hold acquisition time of the LTC1272-3CCSW#TRPBF?
The sample-and-hold acquisition time is 1µs.
- What package types are available for the LTC1272-3CCSW#TRPBF?
The component is available in 24-Lead SOIC (Wide 0.3 Inch) packages.
- Can the LTC1272-3CCSW#TRPBF use an external clock source?
Yes, it can use either a crystal or an external clock source.
- Is the LTC1272-3CCSW#TRPBF compatible with the AD7572?
Yes, it has the same pinout as the AD7572 and can be used as a replacement with some adjustments.
- What is the reference output voltage of the LTC1272-3CCSW#TRPBF?
The reference output voltage is 2.42V.
