ADS54J64 Texas instruments

ADS54J64

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ADS54J64

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Описание

The ADS54J64 device is a quad-channel, 14-bit, 1-GSPS, analog-to-digital converter (ADC) offering wide-bandwidth, 2x oversampling and high SNR. The ADS54J64 supports a JESD204B serial interface with data rates up to 10 Gbps with one lane per channel. The buffered analog input provides uniform impedance across a wide frequency range and minimizes sample-and-hold glitch energy. The ADS54J64 provides excellent spurious-free dynamic range (SFDR) over a large input frequency range with very low power consumption. The digital signal processing block includes complex mixers followed by low-pass filters with decimate-by-2 and -4 options supporting up to a 200-MHz receive bandwidth. The ADS54J64 also supports a 14-bit, 500-MSPS output in DDC bypass mode.A four-lane JESD204B interface simplifies connectivity, allowing high system integration density. An internal phase-locked loop (PLL) multiplies the incoming ADC sampling clock to derive the bit clock that is used to serialize the 14-bit data from each channel.

Quad Channel, 14-Bit Resolution
Maximum Sampling Rate: 1 GSPS
Maximum Output Sample Rate: 500 MSPS
High-Impedance Analog Input Buffer
Analog Input Bandwidth (–3 dB): 1 GHz
Output Options:
- Digital Down Conversion (DDC) Using 16-Bit NCO
- DDC Bypass With Full Rate Output Up to 500 MSPS
Differential Full-Scale Input: 1.1 V_PP
JESD204B Interface:
- Subclass 1 Support
- 1 Lane per ADC Up to 10 Gbps
- Dedicated SYNC Pin for Pair of Channels
Support for Multi-Chip Synchronization
Spectral Performance:
- f_IN = 190-MHz IF at –1 dBFS:
  - SNR: 69 dBFS
  - NSD: –153 dBFS/Hz
  - SFDR: 86 dBc (HD2, HD3),
    95 dBFS (Non HD2, HD3)
- f_IN = 370-MHz IF at –3 dBFS:
  - SNR: 68.5 dBFS
  - NSD: –152.5 dBFS/Hz
  - SFDR: 80 dBc (HD2, HD3),
    86 dBFS (Non HD2, HD3)
72-Pin VQFN Package (10 mm × 10 mm)
Power Consumption: 625 mW/Ch, 2.5 W Total
Power Supplies: 1.15 V, 1.15 V, 1.9 V

Sample rate (max) (Msps)	500, 1000
Resolution (Bits)	14
Number of input channels	4
Interface type	JESD204B
Analog input BW (MHz)	1000
Features	High Performance
Rating	Catalog
Peak-to-peak input voltage range (V)	1.1
Power consumption (typ) (mW)	2500
Architecture	Pipeline
SNR (dB)	69
ENOB (Bits)	11.6
SFDR (dB)	86
Operating temperature range (°C)	-40 to 85
Input buffer	Yes