ADS5474_16 Datasheet, PDF (1/41 Pages) Texas Instruments – 14-Bit, 400-MSPS Analog-to-Digital Converter

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ADS5474
SLAS525C – JULY 2007 – REVISED JANUARY 2016
ADS5474 14-Bit, 400-MSPS Analog-to-Digital Converter
1 Features
•1 400-MSPS Sample Rate
• 14-Bit Resolution, 11.2-Bits ENOB
• 1.4-GHz Input Bandwidth
• 80-dBc SFDR at 230 MHz and 400 MSPS
• 69.8-dBFS SNR at 230 MHz and 400 MSPS
• 2.2-V_PP Differential Input Voltage
• LVDS-Compatible Outputs
• 2.5-W Total Power Dissipation
• 50-mW Power Down Mode
• Offset Binary Output Format
• Output Data Transitions on the Rising and Falling
Edges of a Half-Rate Output Clock
• On-Chip Analog Buffer, Track-and-Hold, and
Reference Circuit
• HTQFP-80 PowerPAD™ Package
(14 mm × 14 mm footprint)
• Industrial Temperature Range:
–40°C to +85°C
• Pin-Similar/Compatible with 12-, 13-, and 14-Bit
Family: ADS5463 and ADS5440/ADS5444
2 Applications
• Test and Measurement Instrumentation
• Software-Defined Radio
• Data Acquisition
• Power Amplifier Linearization
• Communication Instrumentation
• Radar
3 Description
The ADS5474 device is a 14-bit, 400-MSPS analog-
to-digital converter (ADC) that operates from both a
5-V supply and 3.3-V supply while providing LVDS-
compatible digital outputs. This ADC is one of a
family of 12-, 13-, and 14-bit ADCs that operate from
210 MSPS to 500 MSPS. The ADS5474 device has
an input buffer that isolates the internal switching of
the onboard track and hold (T&H) from disturbing the
signal source while providing a high-impedance input.
An internal reference generator is also provided to
simplify the system design.
Designed with a 1.4-GHz input bandwidth for the
conversion of wide-bandwidth signals that exceed
400 MHz of input frequency at 400 MSPS, the
ADS5474 device has outstanding low-noise
performance and spurious-free dynamic range over a
large input frequency range.
The ADS5474 device is available in an TQFP-80
PowerPAD package. The device is built on Texas
Instruments complementary bipolar process (BiCom3)
and is specified over the full industrial temperature
range (–40°C to +85°C).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADS5474
HTQFP (80)
12.00 mm x 12.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Block Diagram
VIN
A1
TH1
VIN
VREF
Reference
TH2
+_S
A2
–
ADC1
DAC1
5
TH3
+_S
A3
–
ADC2
DAC2
5
ADC3
6
Digital Error Correction
CLK
Timing
CLK
OVR OVR DRY DRY
D[13:0]
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.