ADS6445-EP Datasheet, PDF (1/71 Pages) Texas Instruments – QUAD CHANNEL, 14 BIT, 125 MSPS ADC WITH SERIAL LVDS OUTPUTS

ADS6445-EP
www.ti.com ............................................................................................................................................................................................ SLAS573 – FEBRUARY 2008
QUAD CHANNEL, 14 BIT, 125 MSPS ADC WITH SERIAL LVDS OUTPUTS
FEATURES
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• Controlled Baseline
– One Assembly
– Test Site
– One Fabrication Site
• –55°C to 125°C Operating Junction
Temperature Range
• Enhanced Diminishing Manufacturing Sources
(DMS) Support
• Enhanced Product-Change Notification
• Qualification Pedigree ⁽¹⁾
• Sample Rate: 125 MSPS
• 14-Bit Resolution with No Missing Codes
• Simultaneous Sample and Hold
• 3.5-dB Coarse Gain and up to 6-dB
Programmable Fine Gain for SFDR/SNR
Trade-Off
• Serialized LVDS Outputs with Programmable
Internal Termination Option
(1) Component qualification in accordance with JEDEC and
industry standards to ensure reliable operation over an
extended temperature range. This includes, but is not limited
to, Highly Accelerated Stress Test (HAST) or biased 85/85,
temperature cycle, autoclave or unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing should not be viewed as
justifying use of this component beyond specified
performance and environmental limits.
• Supports Sine, LVCMOS, LVPECL, LVDS Clock
Inputs and Amplitude Down to 400 mV_PP
• Internal Reference with External Reference
Support
• No External Decoupling Required for
References
• 3.3-V Analog and Digital Supply
• 64-pin QFN Package (9 mm × 9 mm)
• Pin Compatible 12-Bit Family (ADS642x)
• Feature Compatible Dual Channel Family
(ADS624x, ADS644x)
APPLICATIONS
• Base-Station IF Receivers
• Diversity Receivers
• Medical Imaging
• Test Equipment
Table 1. ADS64XX Quad Channel Family⁽¹⁾
ADS644X
14 Bit
ADS642X
12 Bit
125 MSPS
ADS6445
ADS6425
105 MSPS 80 MSPS 65 MSPS
ADS6444 ADS6443 ADS6442
ADS6424 ADS6423 ADS6422
(1) Product Preview for ADS6444, ADS6443, ADS6442 and
ADS642X family
Table 2. Performance Summary
SFDR, dBc
Fin = 10 MHz (0 dB gain)
Fin = 170 MHz (3.5 dB gain)
Fin = 10 MHz (0 dB gain)
SINAD, dBFS
Fin = 170 MHz (3.5 dB gain)
Power, per channel, mW
ADS6445
87
79
73.4
68.3
420
ADS6444
91
83
73.4
69.3
340
ADS6443
92
84
74.2
69.4
300
ADS6442
93
84
74.3
70
265
DESCRIPTION/ORDERING INFORMATION
The ADS6445/ADS6444/ADS6443/ADS6442 (ADS644X) is a family of high performance 14 bit 125/105/80/65
MSPS quad channel A-D converters. Serial LVDS data outputs reduce the number of interface lines, resulting in
a compact 64 pin QFN package (9 mm × 9 mm) that allows for high system integration density. The device
includes 3.5 dB coarse gain option that can be used to improve SFDR performance with little degradation in
SNR. In addition to the coarse gain, fine gain options also exist, programmable in 1 dB steps up to 6 dB.
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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.
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 © 2008, Texas Instruments Incorporated