ADS5400
www.ti.com
SLAS611B –OCT 2009–REVISED MARCH 2010
12-Bit, 1-GSPS Analog-to-Digital Converter
Check for Samples: ADS5400
1
FEATURES
•
•
On-Chip Analog Buffer
23
•
1-GSPS Sample Rate
100-Pin TQFP PowerPAD™ Package
(16-mm × 16-mm Footprint With Leads)
•
12-Bit Resolution
•
Industrial Temperature Range = –40°C to 85°C
•
•
•
•
•
2.1 GHz Input Bandwidth
SFDR = 66 dBc at 1.2 GHz
SNR = 57.6 dBFS at 1.2 GHz
7 Clock Cycle Latency
APPLICATIONS
•
•
•
•
•
•
Test and Measurement Instrumentation
Ultra-Wide Band Software-Defined Radio
Data Acquisition
Power Amplifier Linearization
Signal Intelligence and Jamming
Radar
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
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).
BLOCK DIAGRAM
ADS5400
RESETP (SYNCINP)
RESETN (SYNCINN)
CLKINP
CLKINN
CLOCK
DIVIDE
INP
INN
12
CLKOUTAP
CLKOUTAN
12-bit ADC
(3 stage pipeline)
BUFFER
12
OUTA[0-11]P
OUTA[0-11]N
BUS A
VCM
OVRAP (SYNCOUTAP)
OVRAN (SYNCOUTAN)
REFERENCE
VREF
OVER RANGE
DETECTOR,
SYNC and
DEMUX
SCLK
SDIO
GAIN ADJUST
PHASE ADJUST
OFFSET ADJUST
TEMP SENSOR
CLKOUTBP
CLKOUTBN
SDO
12
SDENB
OUTB[0-11]P
OUTB[0-11]N
CONTROL
BUS B
ENEXTREF
ENPWD
ENA1BUS
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.
2
3
PowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
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