Overview
The ADC12D1800RFIUT from Texas Instruments is a 12-bit, single 3.6 GSPS RF sampling analog-to-digital converter (ADC). This device is designed to directly sample input frequencies up to and above 2.7 GHz, making it highly suitable for various high-frequency applications. It features excellent noise and linearity performance, extending its usable range beyond the 3rd Nyquist zone. The ADC is packaged in a lead-free 292-ball thermally enhanced BGA package and operates over an industrial temperature range of –40°C to +85°C.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 Bits |
| Sampling Rate | Up to 3.6 GSPS (interleaved), 1.8 GSPS (dual ADC) |
| Input Frequency Range | Up to and above 2.7 GHz |
| SNR (Signal to Noise Ratio) | 58.1 dB (typical) |
| ENOB (Effective Number of Bits) | 9.3 Bits (typical) |
| SFDR (Spurious Free Dynamic Range) | 71.7 dBc (typical) |
| IMD3 (Third-Order Intermodulation Distortion) | -62 dBc (Fin = 2.7 GHz at -13 dBFS), -64 dBc (Fin = 2.7 GHz at -16 dBFS) |
| Noise Floor Density | -155.0 dBm/Hz |
| Power Consumption | 4.29 W (total), 2.15 W per channel (typical) |
| Package Type | 292-ball thermally enhanced BGA |
| Package Size | 27.00 mm x 27.00 mm |
| Operating Temperature Range | -40°C to +85°C |
| Analog Supply Voltage | 1.9 V |
| Digital Supply Voltage | 1.8 V to 2 V |
Key Features
- Configurable to either 3.6 GSPS interleaved or 1.8 GSPS dual ADC operation
- Excellent noise and linearity performance up to and above 2.7 GHz
- New DESCLKIQ mode for high bandwidth, high sampling rate applications
- AutoSync feature for multi-chip synchronization
- Internally terminated, buffered, differential analog inputs
- Programmable gain, offset, and aperture delay adjust
- Time stamp feature to capture external trigger
- Test patterns at output for system debug
- Pin-compatible with ADC1xD1x00, ADC12Dx00RF series
Applications
- 3G/4G Wireless Basestation – Receive Path
- SIGINT – Receive Path
- RADAR / LIDAR – DPD Path
- Wideband Communications
- Wideband Microwave Backhaul
- Consumer RF
- RF Sampling Software Defined Radio
- Test and Measurement
- Military Communications
Q & A
- What is the maximum sampling rate of the ADC12D1800RFIUT? The maximum sampling rate is up to 3.6 GSPS in interleaved mode and 1.8 GSPS in dual ADC mode.
- What is the input frequency range of the ADC12D1800RFIUT? The input frequency range is up to and above 2.7 GHz.
- What is the SNR of the ADC12D1800RFIUT? The SNR is 58.1 dB (typical).
- What is the ENOB of the ADC12D1800RFIUT? The ENOB is 9.3 Bits (typical).
- What is the power consumption of the ADC12D1800RFIUT? The total power consumption is 4.29 W, with 2.15 W per channel (typical).
- What package type and size does the ADC12D1800RFIUT use? It uses a 292-ball thermally enhanced BGA package with a size of 27.00 mm x 27.00 mm.
- What is the operating temperature range of the ADC12D1800RFIUT? The operating temperature range is -40°C to +85°C.
- Does the ADC12D1800RFIUT support multi-chip synchronization? Yes, it supports multi-chip synchronization through the AutoSync feature.
- What are some of the key applications of the ADC12D1800RFIUT? Key applications include 3G/4G Wireless Basestation, SIGINT, RADAR / LIDAR, Wideband Communications, and more.
- How does the ADC12D1800RFIUT handle test patterns for system debug? The device can output fixed, repetitive test patterns at the digital outputs for system debug.
