Overview
The ADS54J42IRMPT is a low-power, wide-bandwidth, 14-bit, 625-MSPS, dual-channel analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for high signal-to-noise ratio (SNR) and delivers a noise floor of –157 dBFS/Hz, making it suitable for applications requiring high dynamic range over a wide instantaneous bandwidth.
The ADC features integrated wideband digital down-converter (DDC) blocks and supports the JESD204B serial interface with data rates up to 6.25 Gbps, enabling high system integration density. It is packaged in a 72-pin VQFNP (10 mm × 10 mm) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 Bits | |
| Sampling Rate | 625 MSPS | |
| Number of Channels | Dual-Channel | |
| Noise Floor | –157 dBFS/Hz | |
| SNR (fIN = 170 MHz at –1 dBFS) | 71.0 dBFS | |
| SFDR (fIN = 170 MHz at –1 dBFS) | 85 dBc | |
| Input Full-Scale Voltage | 1.9 VPP | |
| Input Bandwidth (3 dB) | 1.2 GHz | |
| Power Dissipation per Channel | 970 mW | |
| Operating Temperature Range | –40°C to 85°C | |
| Package Type | 72-Pin VQFNP (10 mm × 10 mm) |
Key Features
- High SNR and low noise floor for high dynamic range applications.
- Integrated wideband DDC blocks for flexible signal processing.
- JESD204B serial interface with data rates up to 6.25 Gbps for high-speed data transfer.
- Buffered analog input with uniform input impedance across a wide frequency range.
- Low power consumption with 970 mW per channel at 625 MSPS.
- Excellent spurious-free dynamic range (SFDR) over a large input frequency range.
- On-chip dither for improved noise performance.
- Multi-chip synchronization support for large-scale systems.
Applications
- Radar and Antenna Arrays
- Broadband Wireless
- Cable CMTS, DOCSIS 3.1 Receivers
- Communications Test Equipment
- Microwave Receivers
- Software Defined Radio (SDR)
- Digitizers
- Medical Imaging and Diagnostics
Q & A
- What is the resolution and sampling rate of the ADS54J42IRMPT?
The ADS54J42IRMPT has a 14-bit resolution and a sampling rate of 625 MSPS.
- What is the noise floor of the ADS54J42IRMPT?
The noise floor is –157 dBFS/Hz.
- What interface does the ADS54J42IRMPT support for data transfer?
The device supports the JESD204B serial interface with data rates up to 6.25 Gbps.
- What is the input bandwidth of the ADS54J42IRMPT?
The input bandwidth is 1.2 GHz.
- What is the power dissipation per channel at 625 MSPS?
The power dissipation per channel is 970 mW.
- What are some of the key applications for the ADS54J42IRMPT?
Key applications include radar and antenna arrays, broadband wireless, cable CMTS, DOCSIS 3.1 receivers, communications test equipment, microwave receivers, software defined radio (SDR), digitizers, and medical imaging and diagnostics.
- What type of package does the ADS54J42IRMPT come in?
The device is packaged in a 72-pin VQFNP (10 mm × 10 mm) package.
- Does the ADS54J42IRMPT support multi-chip synchronization?
Yes, it supports multi-chip synchronization.
- What is the operating temperature range of the ADS54J42IRMPT?
The operating temperature range is from –40°C to 85°C.
- What is the SFDR of the ADS54J42IRMPT at 170 MHz input frequency?
The SFDR is 85 dBc at 170 MHz input frequency.
