Overview
The LTC1420CGN#PBF is a 12-bit, 10 Msps (Mega-samples per second) sampling analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-speed data acquisition and features a low power consumption of 250 mW. It operates on either a single 5V supply or dual ±5V supplies, making it versatile for various applications. The LTC1420 includes a high dynamic range sample-and-hold circuit, a precision reference, and a programmable gain amplifier (PGA) input circuit, enhancing its performance and flexibility.
Key Specifications
| Specification | Value |
|---|---|
| Sample Rate | 10 Msps |
| Resolution | 12 bits |
| Supply Voltage | Single 5V or dual ±5V |
| Power Dissipation | 250 mW |
| Input Range | ±2.048V, ±1.024V, ±0.512V (bipolar) |
| Integral Nonlinearity Error | <1 LSB |
| Differential Nonlinearity | <0.25 LSB |
| Common Mode Rejection Ratio (CMRR) | 75 dB |
| Signal-to-Noise and Distortion Ratio (S/(N + D)) | 71 dB at Nyquist |
| Spurious Free Dynamic Range (SFDR) | 83 dB at Nyquist |
| Full-Power Bandwidth | 100 MHz |
| Package | 28-Lead SSOP (Narrow 0.15 Inch) |
Key Features
- High-speed sampling at 10 Msps
- Single 5V or dual ±5V supply operation
- High dynamic range sample-and-hold circuit
- Precision reference and PGA input circuit
- Flexible input ranges: ±2.048V, ±1.024V, ±0.512V
- True differential inputs with 75 dB CMRR
- Out-of-range indicator
- Separate output logic supply for direct connection to 3V or 5V components
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 available supply voltage options for the LTC1420?
The LTC1420 can operate on either a single 5V supply or dual ±5V supplies.
- What is the resolution of the LTC1420 ADC?
The LTC1420 is a 12-bit ADC.
- What are the input ranges available 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 of the LTC1420 is 75 dB.
- What is the signal-to-noise and distortion ratio (S/(N + D)) of the LTC1420 at Nyquist frequency?
The S/(N + D) at Nyquist frequency is 71 dB.
- What is the spurious free dynamic range (SFDR) of the LTC1420 at Nyquist frequency?
The SFDR at Nyquist frequency is 83 dB.
- What is the full-power bandwidth of the LTC1420?
The full-power bandwidth is 100 MHz.
- What type of package does the LTC1420 come in?
The LTC1420 comes in a 28-Lead SSOP (Narrow 0.15 Inch) package.
- Can the LTC1420 be used with both 3V and 5V digital systems?
Yes, the LTC1420 has a separate output logic supply that allows direct connection to either 3V or 5V digital systems.
