Rainbow-electronics ADC08100 User Manual

Browse online or download User Manual for Sensors Rainbow-electronics ADC08100. Rainbow Electronics ADC08100 User Manual

  • Download
  • Add to my manuals
  • Print
  • Page
    / 19
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 0
ADC08100
8-Bit, 20 MSPS to 100 MSPS, 1.3 mW/MSPS A/D
Converter
General Description
The ADC08100 is a low-power, 8-bit, monolithic analog-to-
digital converter with an on-chip track-and-hold circuit. Opti-
mized for low cost, low power, small size and ease of use,
this product operates at conversion rates of 20 MSPS to
100 MSPS with outstanding dynamic performance over its
full operating range while consuming just 1.3 mW per MHz of
clock frequency. That’s just 130 mW of power at 100 MSPS.
Raising the PD pin puts the ADC08100 into a Power Down
mode where it consumes just 1 mW.
The unique architecture achieves 7.4 Effective Bits with
41 MHz input frequency. The excellent DC and AC charac-
teristics of this device, together with its low power consump-
tion and single +3V supply operation, make it ideally suited
for many imaging and communications applications, includ-
ing use in portable equipment. Furthermore, the ADC08100
is resistant to latch-up and the outputs are short-circuit proof.
The top and bottom of the ADC08100’s reference ladder are
available for connections, enabling a wide range of input
possibilities. The digital outputs are TTL/CMOS compatible
with a separate output power supply pin to support interfac-
ing with 3V or 2.5V logic. The digital inputs (CLK and PD) are
TTL/CMOS compatible.
The ADC08100 is offered in a 24-lead plastic package
(TSSOP) and is specified over the industrial temperature
range of −40˚C to +85˚C. An evaluation board is available to
assist in the product evaluation process.
Features
n Single-ended input
n Internal sample-and-hold function
n Low voltage (single +3V) operation
n Small package
n Power-down feature
Key Specifications
n Resolution 8 bits
n Maximum sampling frequency 100 MSPS (min)
n DNL 0.4 LSB (typ)
n ENOB 7.4 bits (typ) at f
IN
=41MHz
n THD −60 dB (typ)
n Power Consumption
— Operating 1.3 mW/MSPS (typ)
— Power down: 1 mW (typ)
Applications
n Flat panel displays
n Projection systems
n Set-top boxes
n Battery-powered instruments
n Communications
n Medical scan converters
n X-ray imaging
n High speed Viterbi decoders
n Astronomy
Pin Configuration
10137101
November 2003
ADC08100 8-Bit, 100 MSPS, 1.3 mW/MSPS A/D Converter
© 2003 National Semiconductor Corporation DS101371 www.national.com
Page view 0
1 2 3 4 5 6 ... 18 19

Summary of Contents

Page 1 - Converter

ADC081008-Bit, 20 MSPS to 100 MSPS, 1.3 mW/MSPS A/DConverterGeneral DescriptionThe ADC08100 is a low-power, 8-bit, monolithic analog-to-digital conver

Page 2 - Block Diagram

Typical Performance Characteristics VA=DRVD= 3V, fCLK= 100 MHz, fIN= 41 MHz, unlessotherwise stated (Continued)Distortion vs. Input Frequency Distorti

Page 3

Typical Performance Characteristics VA=DRVD= 3V, fCLK= 100 MHz, fIN= 41 MHz, unlessotherwise stated (Continued)SINAD/ENOB vs. Clock Duty Cycle Power C

Page 4

Specification DefinitionsAPERTURE (SAMPLING) DELAY is that time required afterthe fall of the clock input for the sampling switch to open. TheSample/H

Page 5

Timing DiagramFunctional DescriptionThe ADC08100 uses a new, unique architecture thatachieves over 7 effective bits at input frequencies up to andbeyo

Page 6

Applications Information (Continued)The reference bias circuit of Figure 2 is very simple and theperformance is adequate for many applications. Howeve

Page 7

Applications Information (Continued)VRTshould always be at least 1.0V more positive than VRBto minimize noise.The VRMpin is the center of the referenc

Page 8

Applications Information (Continued)The RC at the amplifier output filters the clock rate energythat comes out of the analog input due to the input sa

Page 9

Applications Information (Continued)4.0 THE DIGITAL INPUT PINSThe ADC08100 has two digital input pins: The PD pin andthe Clock pin.4.1 The PD PinThe P

Page 10

Applications Information (Continued)Figure 5 gives an example of a suitable layout. All analogcircuitry (input amplifiers, filters, reference componen

Page 11

Physical Dimensions inches (millimeters) unless otherwise notedNOTES: UNLESS OTHERWISE SPECIFIEDREFERENCE JEDEC REGISTRATION mo-153, VARIATION AD, DAT

Page 12 - Specification Definitions

Ordering InformationADC08100CIMT TSSOPADC08100CIMTX TSSOP (tape and reel)ADC08100EVAL Evaluation BoardBlock Diagram10137102Pin Descriptions and Equiva

Page 13 - Applications Information

Pin Descriptions and Equivalent Circuits (Continued)Pin No. Symbol Equivalent Circuit Description23 PDPower Down input. When this pin is high, the con

Page 14

Absolute Maximum Ratings (Notes 1,2)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distri

Page 15

Converter Electrical Characteristics (Continued)The following specifications apply for VA=DRVD= +3.0VDC,VRT= +1.9V, VRB= 0.3V, CL= 10 pF, fCLK= 100 MH

Page 16

Converter Electrical Characteristics (Continued)The following specifications apply for VA=DRVD= +3.0VDC,VRT= +1.9V, VRB= 0.3V, CL= 10 pF, fCLK= 100 MH

Page 17

Converter Electrical Characteristics (Continued)10137107Note 8: To guarantee accuracy, it is required that VAand DR VDbe well bypassed. Each supply pi

Page 18

Typical Performance Characteristics VA=DRVD= 3V, fCLK= 100 MHz, fIN= 41 MHz, unlessotherwise stated (Continued)DNL DNL vs. Temperature1013710910137117

Page 19 - NS Package Number MTC24

Typical Performance Characteristics VA=DRVD= 3V, fCLK= 100 MHz, fIN= 41 MHz, unlessotherwise stated (Continued)SNR vs. Sample Rate SNR vs. Input Frequ

Comments to this Manuals

No comments