ADS5296 Datasheet, PDF (1/104 Pages) Texas Instruments – 10-Bit, 200-MSPS, 4-Channel and 12-Bit, 80-MSPS, 8-Channel Analog-to-Digital Converter

ADS5296
www.ti.com
SBAS606A – MAY 2013 – REVISED MAY 2013
10-Bit, 200-MSPS, 4-Channel and 12-Bit, 80-MSPS, 8-Channel
Analog-to-Digital Converter
Check for Samples: ADS5296
FEATURES
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•2 Configurable Modes of Operation:
– 10-Bit, 200-MSPS, 4-Channel ADC
– 12-Bit, 160-MSPS, 4-Channel ADC
– 10-Bit, 100-MSPS, 8-Channel ADC
– 12-Bit, 80-MSPS, 8-Channel ADC
• Designed for Low Power:
– 65 mW per Channel at 80 MSPS
(12-Bit, 8-Channel)
– 150 mW per Channel at 200 MSPS
(10-Bit, 4-Channel)
• 12-Bit, 80 MSPS:
– SNR: 70.3 dBFS
• 10-Bit, 200 MSPS:
– SNR: 61.3 dBFS
– Interleaving Spur: > 60 dBc at 90 MHz
• Serial LVDS One-Wire Interface:
– 10x Serialization up to 1000 Mbps Data Rate
per Wire
– 12x Serialization up to 960 Mbps Data Rate
per Wire
• Digital Processing Block:
– Programmable FIR Decimation Filter and
Oversampling to Minimize Harmonic
Interference
– Programmable IIR High-Pass Filter to
Minimize DC Offset
– Programmable Digital Gain: 0 dB to 12 dB
• Low-Frequency Noise Suppression Mode
• Programmable Mapping Between ADC Input
Channels and LVDS Output Pins
• Channel Averaging Mode
• Variety of LVDS Test Patterns to Verify
Data Capture by FPGA or Receiver
• Package: 9-mm × 9-mm QFN-64
DESCRIPTION
The ADS5296 is a low-power, 12-bit, 8-channel,
analog-to-digital converter (ADC) with sample rates
up to 80 MSPS. However, the device can also be
configured to operate as a 4-channel ADC running at
2x the sample rate by interleaving data from two ADC
channels. In interleaving mode, the device accepts a
double frequency input clock. Each ADC in a pair
converts a common analog input signal at alternate
rising edges of the 2x input clock. The device can
either be configured as a 10-bit, 4-channel ADC with
sample rates up to 200 MSPS or as a 12-bit, 4-
channel ADC with sample rates up to 160 MSPS.
The data from each ADC within the interleaved pair is
output in serial format over one LVDS pair up to a
maximum data rate of 1 Gbps (10 bits at 100 MSPS).
With interleaving disabled, the ADS5296 can also be
operated as an 8-channel, 10-bit device with sample
rates up to 100 MSPS.
Several digital functions commonly used in systems
are included in the device. These functions include a
low-frequency noise suppression (LFNS) mode,
digital filtering options, and programmable mapping of
LVDS output pins and analog input channels.
For low input frequency applications, the LFNS mode
enables the suppression of noise at low frequencies
and improves SNR in the 1-MHz band near dc by
approximately 3 dB. Digital filtering options include
low-pass, high-pass, and band-pass digital filters as
well as dc offset removal filters.
Low power consumption and integration of multiple
channels in a small package makes the device
attractive for high channel count data acquisition
systems. The device is available in a compact 9-mm
× 9-mm QFN-64 package. The ADS5296 is specified
over the –40°C to +85°C operating temperature
range.
APPLICATIONS
• Ultrasound Imaging
• Communication Applications
• Multichannel Data Acquisition
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated