ADC31RF80 Texas instruments

ADC31RF80

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ADC31RF80

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Описание

The ADC31RF80 device is a 14-bit, 3-GSPS, single-channel telecom receiver and feedback device that supports RF sampling with input frequencies up to 4 GHz and beyond. Designed for high signal-to-noise ratio (SNR), the ADC31RF80 delivers a noise spectral density of –155 dBFS/Hz as well as dynamic range over a large input frequency range. The buffered analog input with on-chip termination provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy.The ADC31RF80 comes with a dual-band, digital down-converter (DDC) with up to three independent, 16-bit numerically-controlled oscillators (NCOs) per DDC for phase-coherent frequency hopping. Additionally, the ADC is equipped with front-end peak and RMS power detectors and alarm functions to support external automatic gain control (AGC) algorithms.The ADC31RF80 supports the JESD204B serial interface with subclass 1-based deterministic latency using data rates up to 12.5 Gbps with up to four lanes. The device is offered in a 72-pin VQFN package (10 mm × 10 mm) and supports the industrial temperature range (–40°C to +85°C).

14-Bit, 3-GSPS ADC
Noise Floor: –155 dBFS/Hz
RF Input Supports Up To 4.0 GHz
Aperture Jitter: 90 f_S
Spectral Performance (f_IN = 900 MHz, –2 dBFS):
- SNR: 61.4 dBFS
- SFDR: 71-dBc HD2, HD3
- SFDR: 76-dBc Worst Spur
Spectral Performance (f_IN = 1.85 GHz, –2 dBFS):
- SNR: 58.5 dBFS
- SFDR: 65-dBc HD2, HD3
- SFDR: 75-dBc Worst Spur
On-Chip Digital Down-Converters:
- Up to 2 DDCs (Dual-Band Mode)
- Up to 3 Independent NCOs per DDC
On-Chip Input Clamp for Overvoltage Protection
Programmable On-Chip Power Detectors With Alarm Pins for AGC Support
On-Chip Dither
On-Chip Input Termination
Input Full-Scale: 1.35 V_PP
Support for Multi-Chip Synchronization
JESD204B Interface:
- Subclass 1-Based Deterministic Latency
- 4 Lanes Support at 12.5 Gbps
Total Power Dissipation: 3.2 W at 3.0 GSPS
72-Pin VQFN Package (10 mm × 10 mm)

Sample rate (max) (Msps)	3000
Resolution (Bits)	14
Number of input channels	1
Interface type	JESD204B
Analog input BW (MHz)	3200
Features	Ultra High Speed
Rating	Catalog
Peak-to-peak input voltage range (V)	1.35
Power consumption (typ) (mW)	3200
Architecture	Pipeline
SNR (dB)	61.4
ENOB (Bits)	9.8
SFDR (dB)	71
Operating temperature range (°C)	-40 to 85
Input buffer	Yes