Overview
The LTC1420CGN#TRPBF is a 12-bit, 10Msps (Mega Samples Per Second) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-speed data acquisition and features a flexible input circuit, high dynamic range, and low power consumption. It operates on either a single 5V supply or dual ±5V supplies, making it versatile for various applications. The LTC1420 includes a precision reference, a programmable gain amplifier (PGA), and a sample-and-hold circuit, ensuring high accuracy and reliability in signal conversion.
Key Specifications
| Specification | Value |
|---|---|
| Sample Rate | 10 Msps |
| Resolution | 12 bits |
| Supply Voltage | Single 5V or ±5V |
| Input Range | ±2.048V, ±1.024V, ±0.512V (bipolar) |
| Signal-to-Noise Ratio (SNR) | 71 dB at Nyquist |
| Spurious Free Dynamic Range (SFDR) | 83 dB at Nyquist |
| Integral Nonlinearity Error (INL) | < ±1 LSB |
| Differential Nonlinearity Error (DNL) | < ±1 LSB |
| Common Mode Rejection Ratio (CMRR) | 75 dB |
| Full-Power Bandwidth | 100 MHz |
| Power Dissipation | 250 mW |
| Package | 28-Pin Narrow SSOP |
Key Features
- High dynamic range with 71 dB S/(N + D) and 83 dB SFDR at Nyquist
- Flexible input circuit with ±2.048V, ±1.024V, and ±0.512V bipolar input ranges
- True differential inputs with 75 dB CMRR
- Programmable gain amplifier (PGA) with 1x or 2x gain
- Out-of-range indicator
- Separate output logic supply for direct connection to 3V components
- Low power consumption of 250 mW
- 28-Pin Narrow SSOP package
Applications
- Telecommunications
- Digital Signal Processing
- Multiplexed Data Acquisition Systems
- High Speed Data Acquisition
- Spectral Analysis
- Imaging Systems
Q & A
- What is the sample rate of the LTC1420?
The LTC1420 has a sample rate of 10 Msps. - What are the possible supply voltages for the LTC1420?
The LTC1420 can operate on either a single 5V supply or dual ±5V supplies. - What are the available input ranges for the LTC1420?
The input ranges are ±2.048V, ±1.024V, and ±0.512V (bipolar). - What is the common mode rejection ratio (CMRR) of the LTC1420?
The CMRR is 75 dB. - Can the LTC1420 be used with 3V digital systems?
Yes, the LTC1420 has a separate output logic supply that allows direct connection to 3V components. - What is the power dissipation of the LTC1420?
The power dissipation is 250 mW. - What package type is the LTC1420 available in?
The LTC1420 is available in a 28-Pin Narrow SSOP package. - What are some typical applications of the LTC1420?
Typical applications include telecommunications, digital signal processing, multiplexed data acquisition systems, high-speed data acquisition, spectral analysis, and imaging systems. - Does the LTC1420 have an out-of-range indicator?
Yes, the LTC1420 includes an out-of-range indicator. - What is the full-power bandwidth of the LTC1420?
The full-power bandwidth is 100 MHz.
