ADC08161CIN National Semiconductor, ADC08161CIN Datasheet

IC ADC 500NS S/H 2.5V REF 20-DIP

ADC08161CIN

Manufacturer Part Number
ADC08161CIN
Description
IC ADC 500NS S/H 2.5V REF 20-DIP
Manufacturer
National Semiconductor
Datasheet

Specifications of ADC08161CIN

Number Of Bits
8
Sampling Rate (per Second)
1.5M
Number Of Converters
1
Power Dissipation (max)
100mW
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*ADC08161CIN
© 1997 National Semiconductor Corporation
ADC08161
500 ns A/D Converter with S/H Function and 2.5V
Bandgap Reference
General Description
Using a patented multi-step A/D conversion technique, the
8-bit ADC08161 CMOS A/D converter offers 500 ns conver-
sion time, internal sample-and-hold (S/H), a 2.5V bandgap
reference, and dissipates only 100 mW of power. The
ADC08161 performs an 8-bit conversion with a 2-bit voltage
estimator that generates the 2 MSBs and two low-resolution
(3-bit) flashes that generate the 6 LBSs.
Input signals are tracked and held by the input sampling cir-
cuitry, eliminating the need for an external sample-and-hold.
The ADC08161 can perform accurate conversions of
full-scale input signals at frequencies from DC to typically
more than 300 kHz (full power bandwidth) without the need
of an external sample-and-hold (S/H).
For ease of interface to microprocessors, this part has been
designed to appear as a memory location or I/O port without
the need for external interfacing logic.
Block Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
DS011149
Key Specifications
n Resolution:
n Conversion time (t
n Full power bandwidth: 300 kHz (typ)
n Throughput rate: 1.5 MHz min
n Power dissipation: 100 mW max
n Total unadjusted error:
Features
n No external clock required
n Analog input voltage range from GND to V
n 2.5V bandgap reference
Applications
n Mobile telecommunications
n Hard-disk drives
n Instrumentation
n High-speed data acquisition systems
8 Bits
CONV
): 560 ns max (WR -RD Mode)
±
1
2
LSB and
±
DS011149-1
1 LSB max
November 1995
+
www.national.com

Related parts for ADC08161CIN

ADC08161CIN Summary of contents

Page 1

... For ease of interface to microprocessors, this part has been designed to appear as a memory location or I/O port without the need for external interfacing logic. Block Diagram TRI-STATE ® registered trademark of National Semiconductor Corporation. © 1997 National Semiconductor Corporation DS011149 Key Specifications n Resolution: 8 Bits ...

Page 2

... REF− 25˚C. ; all other limits T MAX A J Conditions = 5V V REF ADC08161BIN, BIWM ADC08161CIN, CIWM = 5V V REF ADC08161BIN, BIWM ADC08161CIN, CIWM, = 2.5V, All Suffixes V REF = 2.5V V REF ADC08161, All Suffixes = 5V V REF = 2.5V V REF (Note 10) On Channel Input = 5V, Off Channel Input = 0V ...

Page 3

... IN p kHz 4. p kHz ns 5V unless otherwise specified. Boldface r f REF+ REF− 25˚ ADC08161BIN, ADC08161CIN, Conditions + Mode Pin Figures Mode Pin Figure 2 ) Mode Pin to GND ( Figure Mode Pin Figure 2 ) Mode Pin to GND, ( Figure 100 pF, Mode Pin to GND L ( Figure 100 Mode Pin to V ...

Page 4

... ADC08161BIN, ADC08161CIN, ADC08161BIWM, ADC08161CIWM Typical (Note 5 4. 0.005 = 0V L −0.005 + = 4.75V = −360 µA OUT = −10 µA OUT + = 4.75V = 1.6 mA OUT = 5.0V OUT = 0V OUT = 0V OUT 4 ADC08161BIN, ADC08161CIN, ADC08161BIWM, Units ADC08161CIWM (Limit) Typical Limit (Note 7) (Note (max) 60 115 ns (max (min (max (max MIN ...

Page 5

... An absolute analog input signal voltage range plied 4.950V over temperature variations, initial tolerance, and loading. (Continued unless otherwise specified. Boldface limits apply for T Conditions ADC08161BIN, ADC08161CIN, ADC08161BIWM, ADC08161CIWM Typical (Note OUT 11 unless otherwise specified. Boldface limits apply for T Conditions “ ...

Page 6

Bandgap Reference Electrical Characteristics Note 11: Off-channel leakage current is measured on the on-channel selection. TRI-STATE Test Circuit and Waveforms www.national.com (Continued) DS011149 DS011149 FIGURE 1. ...

Page 7

TRI-STATE Test Circuit and Waveforms FIGURE 2. WR -RD Mode with t FIGURE 3. WR -RD Mode with t (Continued) t (Mode Pin is High) RD INTL > t (Mode Pin is High) RD INTL 7 DS011149-7 DS011149-8 www.national.com ...

Page 8

TRI-STATE Test Circuit and Waveforms FIGURE 4. WR -RD Mode Reduced Interface System Connection with (Mode Pin is High) FIGURE 5. RD Mode (Pipeline Operation); t Typical Performance Characteristics t vs Temperature CRD DS011149-23 www.national.com ...

Page 9

... Typical Performance Characteristics Supply Current vs Temperature DS011149-26 Connection Diagram See NS Package Number N20A or M20A Ordering Information Industrial (−40˚C T 85˚C) A ADC08161BIN, ADC08161CIN ADC08161BIWM, ADC08161CIWM (Continued) Logic Threshold vs Reference Output Voltage vs Temperature Temperature DS011149-27 Output Current vs Temperature DS011149-29 Dual-In-Line and Wide-Body ...

Page 10

Pin Description (Continued) WR /RDY WR -RD Mode (Logic high applied to MODE pin With CS low, the conversion is started on the rising edge The digital result will be strobed into the output latch ...

Page 11

Application Information FIGURE 6. Block Diagram of the ADC08161 Multi-Step Flash Architecture 1.0 FUNCTIONAL DESCRIPTION The ADC08161 performs an 8-bit analog-to-digital conver- sion using a multi-step flash technique. The first flash gener- ates the five most significant bits (MSBs) and ...

Page 12

Application Information points are then connected to the eight flash comparators. For example, if the analog input signal applied tween 0 and 3/ REF REF REF+ mator decoder instructs the comparator multiplexer to ...

Page 13

Application Information (Continued) The voltage at V sets the input level that produces a REF− digital output of all zeroes. Through V is not itself differen- IN tial, the reference design affords nearly differential-input ca- pability for some measurement applications. ...

Page 14

Application Information Internal Reference 2.5V Full-Scale (Standard Application) DS011149-19 Note: Bypass capacitors consist of a 0.1 µF ceramic in parallel with a 10 µF bead tantalum, unless otherwise specified. FIGURE 9. Typical Connection. Note the multiple bypass capacitors on the ...

Page 15

... Physical Dimensions inches (millimeters) unless otherwise noted Order Number ADC08161BIWM or ADC08161CIWM Order Number ADC08161BIN or ADC08161CIN Wide-Body Small-Outline NS Package Number M20B Dual-In-Line NS Package Number N20A 15 www.national.com ...

Page 16

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

Related keywords