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(VDD = +5V, VREF+ = +5V, VREF‘ = GND, RD-MODE, TA = TON to TMAX, unless ..
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ADC0820CCD ,CMOS High Speed 8-Bit A/D Converter with Track/Hold FunctionELECTRICAL CHARACTERISTICS
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ADC0820CCM ,CMOS High Speed 8-Bit A/D Converter with Track/Hold FunctionBlock Diagram
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ADC0820BCM-ADC0820BCN-ADC0820CCM
CMOS High Speed 8-Bit A/D Converter with Track/Hold Function
79-0589: Rev I' 7/96
AMI 2a2aLAA
OMOS High Speed tb4Bit A/D Converter
with Wack/Hold Function
General Description Features
The ADC0820 is a high speed, ',',1,i,gt',r/'gri'if,", com- . Fast Conversion Time: 1.Os Max.
patible, 8 bit analog-to-digital converter w ic usesa - - -
half-flash technique to achieve a conversion time of . Built in Track and Hold Function
1.4 " The converter has a ov to +5V analog input . No Mlsslng Codes
range and uses a single +5V supply. . No User Adjustments Required
A built-in track-and-hold function is included, elimi-
nating the need for an external track-and-hold for . Single +5V Supply
input slew rates up to 100mV/ps. . No External Clock
The MD easily interfaces with microprocessors by . Easy Interim To Microprocessors
appearing as a memory location or I/O port without
the need for external interfacing logic. Data outputs
use latched, three-state buffer circuitry to allow direct
connection to a microprocessor data bus or system
I/O port. An ty/er-flow output is also provided for Ordering Information
cascading devices to achieve higher resolution.
Maxim's ADC0820 IS pin-compatible with National PART TEMP.RANt2E PIN-PACKAGE Jk,
Semiconductor':; ADC0820 and provides Improved o a _ '
specifications It is packaged in 20-pin Small Outline, ArXXE20BCN 000m +70ac 2O Cast): CYP tlc
DIP and CERDIP packages. ADCOBZOCCN 0 C to +70 C 20 Piastic DIP tl
AocoazoCC/D 0''C to +70°C che' tl ',
Appllcatlons ADC0820BCN (PC lo +70° c 20 so - :12 i
Digital Signal Processing gifegfi 0° C to +705 C 20 SO 21/2
. . . . A OBZOBCJ 40°CIO +85°C 20 CERDIP t I
Hi h S eed Data Ac unsmon "
T lg p . . q ADCOB2OCCJ 410°C to +85°C 20 CERDIP xl
, etpommurriCatltms ADC0820N -55° c to +125° c 20 CERDIP" 21/2
High Speed Servo Loops AocoazoCJ -55° c to +125“ C 20 CERDIP" x" i
Audio Systems Dice are specified at TA = +25°C.
"Contact factory
Functional Block Diagram Pin Configure tlon
Van Top View
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MAXIM Maxim Integrated Products 1
& the latest literature: http:/Mww.maxlrtt-le.com,
OZBOOUV
AUUUUZU
CMOS High Speed 8-1311 AID Converter
with Wack/Hold Function
ABSOLUTE MAXIMUM RATINGS
Su I Volta e. v to GND ........................ av. nov Operating Temperature Ranges
V0.33; trt .5 U/il', pins ADC0820BCL/CC, ..................................... fy'C to +70°C
(Pins 1-9, 11-19) .................... GND - 0.3V, vro '0.3V ADC0820BCJ/CC0 _ _ .. _.. "0''C to +85°C
Output current (Pm 19) mrmm_re__r_._r....m.r...__r___.. 30mA ADC08020BJ/CU, F... -. .. _-55''C la -125''C)
Power Dissipation (Any Package) to 45°C .. ... 450mw Storage Temperature Range-. _ _ T _ TTT ..-65°C to +160°C
Derate Above -25''G by .r....F.F..r._..W.rr_...$.. 6mWPC Lead Temperature (soldenng, 10sec) __ ._.wrr, _.. ___ .. "300''C
Stresses above thou lured under ”Absolute Maximum Rmnga" may cause psrmnnan! damage to ma dewca, These are .mass runny: only, and functional
apsranon o! the demos at thttse or any other condmons abova thou Indicated In Iho operational uchon: al the spocrhcanon is not imphad Exposure to
absolute maxImum ranngs conamons for Ixtcndad parvods may affmtt mo devica Ichabmly
ELECTRICAL CHARACTERISTICS
(Von = HN, Vnsr' = HN VHEF” = GND, RD-MODE, TA = TWN to Tsou, unless otherwise noted)
PARAMETER I SYMBOL I CONDITIONS 1 MIN. TYP. MAX. I UNITS
ACCURACY ,._.. -.- _ - ._ - - .. -
Resolution , 8 I bits
Total Unadjusted Error mm. 1) 2383332 :14 I LSB
No Mssing Codes Resolution 8 I bIts
REFERENCE INPUT
. TA = *25°C 1.4 2.2 4.0
Reference Resistance TA = TON to me 125 4.0 kn
' Input Voltage Range Vass‘ Vrso - 0.1 v
VREF' Input Voltage Range 1 GND - 0.1 VHEF’ V
ANALOG INPUT
Analog Input Voltage Range I veo, GND - 0.1 vDD _ 0.1 v
Analog Input Capacitance -T Cvm 45 : pF
T ' +25°c :03
Analo In t Current I V = 0V to o5V A ' A
9 pu vm IN Tum to me t3 I H
Slew Rate, Tracking (Note 2) SR 0.2 0.1 1 V/ps
LOGIC INPUTS
i5gA7ri, AO 2.0
Input HIGH Voltage an MODE I 3.5 V
Input LOW Voltage VIM Egg“. RD (1): V
- - T = *25°C 0.1
S. D; A
TMIN to TMAX 1 I
- T = 025°C 0.3
I t H h c I I WR: A A l
npu Ig urren INH Tum to TMAX 3 I u
_ TA = +290 50 150
MODE TMIN to TMAX 200
- - T = 25°C 0.3 I
‘1 tL C at I .RD,WR,M E A 5 A
- npu ow urr n I “L R - 111r)f5 Tyert Tm. ._- - -. - .__‘1 -jc_'1C,
Input Capacitance (Note 3) I Cm TS, FEW. MODE 5 a I pF
LOGIC OUIEUYS.* -
DBO-DB7. WFT, INT l
Output HIGH VoIIage vDH VDD = +4.75v laur = 4pr 4.0 I v
I VDD = v475V IOUT ' now 4.5 :
080-087. mm. ROY T
Output LOW Voltage l VOL VOD ' ‘4.75V lour = IBmA 0.4 l V
Three-state Output Current I _ DBO-DB7, RDY TT.A, = 125:: "h3 ' I "
' MIN 0 MAX - L
Output Capacitance (Note 3) I Cour 080-087. mm. RDY 5 B i pF
Output Source Current lsnc DBO-DB7, OTLTNT; Vour = o -25 -10 I mA
l Output Sink Current ISM DB0-DB7, tTW, |N_T, ROY; Vour . Vtoo 40 15 J mA
