Overview
The ADC32RF45IRMPT is a high-performance, dual-channel, 14-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for RF sampling applications, supporting input frequencies up to 4 GHz and beyond. It is optimized for high signal-to-noise ratio (SNR) and delivers a noise spectral density of –155 dBFS/Hz. The ADC32RF45IRMPT features buffered analog inputs with on-chip termination, ensuring uniform input impedance across a wide frequency range and minimizing sample-and-hold glitch energy. It also includes front-end peak and RMS power detectors and alarm functions to support external automatic gain control (AGC) algorithms.
Key Specifications
| Parameter | Minimum | Nominal | Maximum | Unit |
|---|---|---|---|---|
| Resolution | 14 bits | - | - | - |
| Sampling Rate | - | 3.0 GSPS | - | - |
| RF Input Frequency Range | - | Up to 4.0 GHz | - | - |
| Noise Floor | - | -155 dBFS/Hz | - | - |
| Aperture Jitter | - | 90 fS | - | - |
| Channel Isolation | - | 95 dB at fIN = 1.8 GHz | - | - |
| SNR (fIN = 900 MHz, –2 dBFS) | - | 60.9 dBFS | - | - |
| Supply Voltage (AVDD19) | 1.8 V | 1.9 V | 2.0 V | V |
| Operating Temperature Range | -40°C | - | 85°C | °C |
| Package Type | - | VQFN (72 pins) | - | - |
| Package Size | - | 10 mm × 10 mm | - | - |
Key Features
- Dual-channel, 14-bit, 3.0-GSPS analog-to-digital converter
- RF input supports frequencies up to 4.0 GHz
- Noise floor of –155 dBFS/Hz
- Aperture jitter of 90 fS
- Channel isolation of 95 dB at fIN = 1.8 GHz
- Spectral performance: SNR up to 60.9 dBFS, SFDR up to 77-dBc
- Buffered analog inputs with on-chip termination
- Front-end peak and RMS power detectors and alarm functions
- Supports JESD204B serial interface with up to four lanes per ADC
- Industrial temperature range: –40°C to +85°C
Applications
- Communications test equipment
- Microwave and millimeter wave receivers
- Radar systems
- Electronic warfare systems
- High-speed data acquisition systems
Q & A
- What is the resolution and sampling rate of the ADC32RF45IRMPT?
The ADC32RF45IRMPT has a resolution of 14 bits and a sampling rate of up to 3.0 GSPS.
- What is the maximum RF input frequency supported by the ADC32RF45IRMPT?
The ADC32RF45IRMPT supports RF input frequencies up to 4.0 GHz.
- What is the noise floor of the ADC32RF45IRMPT?
The noise floor of the ADC32RF45IRMPT is –155 dBFS/Hz.
- What is the aperture jitter of the ADC32RF45IRMPT?
The aperture jitter of the ADC32RF45IRMPT is 90 fS.
- What is the channel isolation of the ADC32RF45IRMPT at 1.8 GHz?
The channel isolation of the ADC32RF45IRMPT at 1.8 GHz is 95 dB.
- What serial interface does the ADC32RF45IRMPT support?
The ADC32RF45IRMPT supports the JESD204B serial interface.
- What is the operating temperature range of the ADC32RF45IRMPT?
The operating temperature range of the ADC32RF45IRMPT is –40°C to +85°C.
- What package type and size does the ADC32RF45IRMPT come in?
The ADC32RF45IRMPT comes in a 72-pin VQFN package with a size of 10 mm × 10 mm.
- Does the ADC32RF45IRMPT support digital down-conversion?
Yes, the ADC32RF45IRMPT supports connection to a dual-band digital down-converter (DDC) with up to three independent, 16-bit numerically-controlled oscillators (NCOs) per DDC.
- What are some typical applications of the ADC32RF45IRMPT?
The ADC32RF45IRMPT is typically used in communications test equipment, microwave and millimeter wave receivers, radar systems, electronic warfare systems, and high-speed data acquisition systems.
