ADS5400_2 Datasheet, PDF (1/50 Pages) Texas Instruments – 12-Bit, 1-GSPS Analog-to-Digital Converter

ADS5400
www.ti.com
SLAS611B – OCT 2009 – REVISED MARCH 2010
12-Bit, 1-GSPS Analog-to-Digital Converter
Check for Samples: ADS5400
FEATURES
1
•23 1-GSPS Sample Rate
• 12-Bit Resolution
• 2.1 GHz Input Bandwidth
• SFDR = 66 dBc at 1.2 GHz
• SNR = 57.6 dBFS at 1.2 GHz
• 7 Clock Cycle Latency
• Interleave Friendly: Internal Adjustments for
Gain, Phase, and Offset
• 1.5V to 2V Selectable Full-Scale Range
• LVDS-Compatible Outputs, 1 or 2 Bus Options
• Total Power Dissipation: 2.15 W
• On-Chip Analog Buffer
• 100-Pin TQFP PowerPAD™ Package
(16-mm × 16-mm Footprint With Leads)
• Industrial Temperature Range = –40°C to 85°C
APPLICATIONS
• Test and Measurement Instrumentation
• Ultra-Wide Band Software-Defined Radio
• Data Acquisition
• Power Amplifier Linearization
• Signal Intelligence and Jamming
• Radar
DESCRIPTION
The ADS5400 is a 12-bit, 1-GSPS analog-to-digital converter (ADC) that operates from both a 5-V supply and
3.3-V supply, while providing LVDS-compatible digital outputs. The analog input buffer isolates the internal
switching of the track and hold from disturbing the signal source. The simple 3-stage pipeline provides extremely
low latency for time critical applications. Designed for the conversion of signals up to 2 GHz of input frequency at
1 GSPS, the ADS5400 has outstanding low noise performance and spurious-free dynamic range over a large
input frequency range.
The ADS5400 is available in a TQFP-100 PowerPAD™ package. The combination of the PowerPAD package
and moderate power consumption of the ADS5400 allows for operation without an external heatsink. The
ADS5400 is built on Texas Instrument's complementary bipolar process (BiCom3) and is specified over the full
industrial temperature range (–40°C to 85°C).
CLKINP
CLKINN
BLOCK DIAGRAM
ADS5400
CLOCK
DIVIDE
RESETP (SYNCINP)
RESETN (SYNCINN)
INP
INN
VCM
VREF
SCLK
SDIO
SDO
SDENB
ENEXTREF
ENPWD
ENA1BUS
BUFFER
REFERENCE
CONTROL
12
12-bit ADC
(3 stage pipeline)
12
BUS A
GAIN ADJUST
PHASE ADJUST
OFFSET ADJUST
TEMP SENSOR
OVER RANGE
DETECTOR,
SYNC and
DEMUX
12
BUS B
CLKOUTAP
CLKOUTAN
OUTA [0-11]P
OUTA [ 0-11 ]N
OVRAP (SYNCOUTAP )
OVRAN (SYNCOUTAN)
CLKOUTBP
CLKOUTBN
OUTB[ 0-11 ]P
OUTB[0-11]N
OVRBP (SYNCOUTBP)
OVRBN (SYNCOUTBN)
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 2009–2010, Texas Instruments Incorporated