ADS54J42 Texas instruments

ADS54J42

Уточнить цену

ADS54J42

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The ADS54J42 is a low-power, wide-bandwidth, 14-bit, 625-MSPS, dual-channel, analog-to-digital converter (ADC). Designed for high signal-to-noise ratio (SNR), the device delivers a noise floor of –157 dBFS/Hz for applications aiming for highest dynamic range over a wide instantaneous bandwidth. The device supports the JESD204B serial interface with data rates up to 6.25 Gbps. The buffered analog input provides uniform input impedance across a wide frequency range and minimizes sample-and-hold glitch energy. Each ADC channel optionally can be connected to a wideband digital down-converter (DDC) block. The ADS54J42 provides excellent spurious-free dynamic range (SFDR) over a large input frequency range with very low power consumption. The JESD204B interface reduces the number of interface lines, allowing high system integration density. An internal phase-locked loop (PLL) multiplies the ADC sampling clock to derive the bit clock that is used to serialize the 14-bit data from each channel.

14-Bit Resolution, Dual-Chanel, 625-MSPS ADC
Noise Floor: –157 dBFS/Hz
Spectral Performance (f_IN = 170 MHz at –1 dBFS):
- SNR: 71.0 dBFS
- NSD: –155.9 dBFS/Hz
- SFDR: 85 dBc
- SFDR: 93 dBc (Except HD2, HD3, and Interleaving Tones)
Spectral Performance (f_IN = 350 MHz at –1 dBFS):
- SNR: 69 dBFS
- NSD: –153.9 dBFS/Hz
- SFDR: 76 dBc
- SFDR: 90 dBc (Except HD2, HD3, and Interleaving Tones)
Channel Isolation: 100 dBc at f_IN = 170 MHz
Input Full-Scale: 1.9 V_PP
Input Bandwidth (3 dB): 1.2 GHz
On-Chip Dither
Integrated Wideband DDC Block
JESD204B Interface with Subclass 1 Support:
- 2 Lanes per ADC at 6.25 Gbps
- 4 Lanes per ADC at 3.125 Gbps
- Support for Multi-Chip Synchronization
Power Dissipation: 970 mW/Ch at 625 MSPS
Package: 72-Pin VQFNP (10 mm × 10 mm)

Sample rate (max) (Msps)	625
Resolution (Bits)	14
Number of input channels	2
Interface type	JESD204B
Analog input BW (MHz)	1200
Features	High Performance
Rating	Catalog
Peak-to-peak input voltage range (V)	1.9
Power consumption (typ) (mW)	1940
Architecture	Pipeline
SNR (dB)	71.8
ENOB (Bits)	11.6
SFDR (dB)	93
Operating temperature range (°C)	-40 to 85
Input buffer	Yes