adc14c095 National Semiconductor Corporation, adc14c095 Datasheet

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adc14c095

Manufacturer Part Number
adc14c095
Description
14-bit, 65/80/95/105 Msps A/d Converter
Manufacturer
National Semiconductor Corporation
Datasheet
© 2006 National Semiconductor Corporation
ADC14C065/ADC14C080/ADC14C095/ADC14C105
14-Bit, 65/80/95/105 MSPS A/D Converter
General Description
NOTE: This is Advance Information for products cur-
rently in development. ALL specifications are design
targets and are subject to change.
The
ADC14105 are high-performance CMOS analog-to-digital
converters capable of converting analog input signals into
14-bit digital words at rates up to 65/80/95/105 Mega
Samples Per Second (MSPS) respectively. These convert-
ers use a differential, pipelined architecture with digital error
correction and an on-chip sample-and-hold circuit to mini-
mize power consumption and the external component count,
while providing excellent dynamic performance. A unique
sample-and-hold stage yields a full-power bandwidth of 1
GHz. The ADC14C065/080/095/105 may be operated from a
single +3.3V power supply and consumes low power.
A separate +2.5V supply may be used for the digital output
interface which allows lower power operation with reduced
noise. A power-down feature reduces the power consump-
tion to very low levels while still allowing fast wake-up time to
full operation. The differential inputs provide a 2V full scale
differential input swing. A stable 1.2V internal voltage refer-
ence is provided, or the ADC14C065/080/095/105 can be
operated with an external 1.2V reference. Output data for-
mat (offset binary versus 2’s complement) and duty cycle
stabilizer are pin-selectable. The duty cycle stabilizer main-
tains performance over a wide range of clock duty cycles.
The ADC14C065/080/095/105 is available in a 32-lead LLP
package and operates over the industrial temperature range
of −40˚C to +85˚C.
Connection Diagram
ADC14C065,
ADC14C080,
ADC14C095,
DS202098
and
Features
n 1 GHz Full Power Bandwidth
n Internal sample-and-hold circuit
n Low power consumption
n Internal precision reference
n Data Ready output clock
n Clock Duty Cycle Stabilizer
n Single +3.3V supply operation
n Power-down mode
n Offset binary or 2’s complement output data format
n 32-pin LLP package, (5x5x0.8mm, 0.5mm pin-pitch)
Key Specifications
n For ADC14C105
n Resolution
n Conversion Rate
n SNR (f
n SFDR (f
n Full Power Bandwidth
n Power Consumption
Applications
n High IF Sampling Receivers
n Wireless Base Station Receivers
n Test and Measurement Equipment
n Communications Instrumentation
n Portable Instrumentation
IN
IN
= 240 MHz)
= 240 MHz)
20209801
ADVANCE INFORMATION
September 2006
72 dBFS (typ)
83 dBFS (typ)
400 mW (typ)
www.national.com
1 GHz (typ)
105 MSPS
14 Bits

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adc14c095 Summary of contents

Page 1

... Connection Diagram © 2006 National Semiconductor Corporation Features n 1 GHz Full Power Bandwidth n Internal sample-and-hold circuit n Low power consumption ADC14C095, and n Internal precision reference n Data Ready output clock n Clock Duty Cycle Stabilizer n Single +3.3V supply operation n Power-down mode n Offset binary or 2’ ...

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... Block Diagram Ordering Information Industrial (−40˚C ≤ T www.national.com ≤ +85˚C) A ADC14C065CISQ ADC14C080CISQ ADC14C095CISQ ADC14C105CISQ 2 20209802 Package 32 Pin LLP 32 Pin LLP 32 Pin LLP 32 Pin LLP ...

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Pin Descriptions and Equivalent Circuits Pin No. Symbol ANALOG I CMO REF DIGITAL I/O 11 CLK 12 OF/DCS 30 PD Equivalent Circuit ...

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Pin Descriptions and Equivalent Circuits Pin No. Symbol 13-19, D0–D13 23-29 21 DRDY ANALOG POWER Exposed AGND Pad DIGITAL POWER DRGND www.national.com (Continued) Equivalent Circuit Digital data output ...

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... Voltage V Input Capacitance (each pin GND) (Note 12) V External Reference Voltage REF Operating Ratings (Notes 1, Operating Temperature Supply Voltage (V (ADC14C065,ADC14C080) (ADC14C095,ADC14C105) −0.3V to 4.2V Output Driver Supply (V −0. +0.3V) A Clock Duty Cycle (DCS Enabled) ± (DCS disabled ± |AGND-DRGND| +150˚ ...

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ADC14C065 Dynamic Converter Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V MHz CLK CM CMO ≤ All other limits apply for T MAX ...

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ADC14C065 Logic and Power Supply Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V MHz CLK CM CMO T . All other limits apply for T ...

Page 8

ADC14C080 Converter Electrical Characteristics This product is currently under development. As such, the parameters specified are DESIGN TARGETS. The specifica- tions cannot be guaranteed until device characterization has taken place. Unless otherwise specified, the following specifications apply: AGND = DRGND ...

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ADC14C080 Dynamic Converter Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V MHz CLK CM CMO ≤ All other limits apply for T = ...

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... Voltage V Input Capacitance (each pin GND) (Note 12) V External Reference Voltage REF ADC14C095 Dynamic Converter Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V MHz CLK CM CMO ≤ All other limits apply for T MAX ...

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... All other limits apply for T = 25˚C (Note 8) (Note 9) MAX A Symbol Parameter Signal-to-Noise and Distortion SINAD Ratio ADC14C095 Logic and Power Supply Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V MHz CLK CM CMO T . All other limits apply for T = 25˚ ...

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ADC14C105 Converter Electrical Characteristics This product is currently under development. As such, the parameters specified are DESIGN TARGETS. The specifica- tions cannot be guaranteed until device characterization has taken place. Unless otherwise specified, the following specifications apply: AGND = DRGND ...

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ADC14C105 Dynamic Converter Electrical Characteristics Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V +1.2V 105 MHz CLK CM CMO ≤ All other limits apply for T = ...

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ADC14C105 Timing and AC Characteristics Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is guaranteed to be functional, but do not guarantee specific performance limits. ...

Page 15

Specification Definitions APERTURE DELAY is the time after the falling edge of the clock to when the input signal is acquired or held for conver- sion. APERTURE JITTER (APERTURE UNCERTAINTY) is the variation in aperture delay from sample to sample. ...

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Timing Diagram Transfer Characteristic www.national.com Output Timing FIGURE 1. Transfer Characteristic 16 20209809 20209810 ...

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... Physical Dimensions inches (millimeters) unless otherwise noted ADC14C065CISQ / ADC14C080CISQ / ADC14C095CISQ / ADC14C105CISQ National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. ...

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