Overview
The LTC1415CSW#TRPBF is a 12-bit, 1.25 Msps (mega-samples per second) sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is known for its high dynamic range, low power consumption, and precision performance. It operates from a single 5V supply, drawing only 55mW of power, and includes a high dynamic range sample-and-hold, precision reference, and a trimmed internal clock. The LTC1415 is particularly suited for applications requiring high accuracy and low noise, such as imaging systems.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate | 1.25 Msps |
| Power Consumption | 55mW |
| Supply Voltage | 5V |
| Full-Scale Input Range | 4.096V |
| Linearity Errors | ±0.35LSB INL, ±0.25LSB DNL |
| Signal-to-Noise Ratio (SNR) | 72dB |
| Total Harmonic Distortion (THD) | 80dB at 100kHz input frequency |
| Input Bandwidth | 18MHz |
| Common Mode Rejection Ratio | 60dB |
| Output Interface | µP compatible, 12-bit parallel output port |
| Package Type | 28-Lead SOIC (Wide 0.3 Inch) |
Key Features
- High Dynamic Range: The LTC1415 features a high dynamic range sample-and-hold, precision reference, and a trimmed internal clock, making it ideal for high-accuracy applications.
- Low Power Consumption: It draws only 55mW from a single 5V supply, with two power shutdown modes for flexibility in low power systems.
- Precision Performance: Low linearity errors (±0.35LSB INL, ±0.25LSB DNL) and outstanding AC performance (72dB SNR, 80dB THD at 100kHz).
- Differential Input Capability: The unique differential input sample-and-hold can acquire single-ended or differential input signals up to 18MHz bandwidth.
- µP Compatible Output: The ADC has a µP compatible, 12-bit parallel output port with no pipeline delay in the conversion results.
- Separate Logic Supply Pin: Allows direct connection to 3V components.
Applications
The LTC1415 is particularly suited for applications requiring high accuracy and low noise, such as:
- Imaging Systems: Due to its high dynamic range and low linearity errors, it is ideal for imaging applications.
- Industrial Automation: Its precision and reliability make it suitable for industrial automation and control systems.
- Medical Devices: The high accuracy and low noise characteristics are beneficial in medical device applications.
- Data Acquisition Systems: It is used in various data acquisition systems where high-speed and high-precision ADCs are required.
Q & A
- What is the resolution of the LTC1415 ADC?
The LTC1415 is a 12-bit ADC. - What is the sampling rate of the LTC1415?
The sampling rate is 1.25 Msps. - How much power does the LTC1415 consume?
The LTC1415 consumes 55mW from a single 5V supply. - What is the full-scale input range of the LTC1415?
The full-scale input range is 4.096V. - What are the linearity errors of the LTC1415?
The linearity errors are ±0.35LSB INL and ±0.25LSB DNL. - What is the signal-to-noise ratio (SNR) of the LTC1415?
The SNR is 72dB. - What is the total harmonic distortion (THD) of the LTC1415 at 100kHz input frequency?
The THD is 80dB at 100kHz input frequency. - What is the input bandwidth of the LTC1415?
The input bandwidth is 18MHz. - What type of output interface does the LTC1415 have?
The LTC1415 has a µP compatible, 12-bit parallel output port. - What package types are available for the LTC1415?
The LTC1415 is available in 28-Lead SOIC (Wide 0.3 Inch) and SSOP packages.
