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SLWS156 − MARCH 2004
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D
Single-Ended or Differential Clock
1-GHz −3-dB Input Bandwidth
FEATURES
D
D
D
D
D
D
D
D
D
D
D
D
11-Bit Resolution
48-Pin TQFP Package With PowerPad
(7 mm x 7 mm body size)
65-MSPS Maximum Sample Rate
2-V Differential Input Range
pp
3.3-V Single Supply Operation
1.8-V to 3.3-V Output Supply
400-mW Total Power Dissipation
APPLICATIONS
D
Cellular Base Transceiver Station Receive
Channel
Two’s Complement Output Format
− High IF Sampling Applications
− CDMA: IS-95, UMTS, CDMA1X
− TDMA: GSM, IS-136, EDGE/UWC-136
− Wireless Local Loop
On-Chip S/H and Duty Cycle Adjust Circuit
Internal or External Reference
63.3-dBFS SNR and 72.9-dBc SFDR at
65 MSPS and 220-MHz Input
D
Power-Down Mode
− Wideband Baseband Receivers
DESCRIPTION
The ADS5413−11 is a low power, 11-bit, 65-MSPS, CMOS pipeline analog-to-digital converter (ADC) that operates from
a single 3.3-V supply, while offering the choice of digital output levels from 1.8 V to 3.3 V. The low noise, high linearity, and
low clock jitter makes the ADC well suited for high-input frequency sampling applications. On-chip duty cycle adjust circuit
allows the use of a non-50% duty cycle. This can be bypassed for applications requiring low jitter or asynchronous
sampling. The device can also be clocked with single ended or differential clock, without change in performance. The
internal reference can be bypassed to use an external reference to suit the accuracy and low drift requirements of the
application.
The device is specified over full temperature range (−40°C to +85°C).
FUNCTIONAL BLOCK DIAGRAM
AVDD
OVDD
PWD
VINP
Gain
Stage
Gain
Stage
Gain
Stage
Flash
A/D
S/H
Σ
Σ
Σ
7 Stages
VINN
A/D
D/A
A/D
D/A
A/D
D/A
REF SEL
VREFT
CML
2.25 V
Internal
Reference
Generator
2
2
2
2
1.8 V
VREFB
1.25 V
VBG
Digital Error Correction
CLK
DCA
CLKC
DCA
D[0:10]
AGND OGND
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.
CommsADC is a trademark of Texas Instruments.
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Copyright 2004, Texas Instruments Incorporated