ADC0803-1LCN NXP Semiconductors, ADC0803-1LCN Datasheet
ADC0803-1LCN
Available stocks
Related parts for ADC0803-1LCN
ADC0803-1LCN Summary of contents
Page 1
... ADC0803/0804 CMOS 8-bit A/D converters Product data Supersedes data of 2001 Aug 03 INTEGRATED CIRCUITS 2002 Oct 17 ...
Page 2
... D4 V (– GND REF GND TOP VIEW SL00016 Figure 1. Pin configuration TOPSIDE MARKING DWG # ADC0803-1CD, ADC0804-1CD SOT163-1 ADC0803-1LCD, ADC0804-1LCD SOT163-1 ADC0803-1CN, ADC0804-1CN SOT146-1 ADC0803-1LCN, ADC0804-1LCN SOT146-1 RATING UNIT 6.5 V –0.3 to +16 V –0 +0. –40 to +85 – +70 –65 to +150 230 1690 mW 1390 ...
Page 3
... D GND 3 WR SHIFT REGISTER 2002 Oct 17 V (+) V (– – AUTO ZERO LADDER AND COMPARATOR DECODER – SAR 8–BIT CLOCK S INTR INTR CLK IN Figure 2. Block diagram 3 Product data ADC0803/0804 + D7 (MSB) (11) D6 (12) D5 (13) D4 (14) OUTPUT LATCHES D3 (15) D2 (16) D1 (17) D0 (LSB) (18 CLK R SL00017 ...
Page 4
... DC ELECTRICAL CHARACTERISTICS MHz CLK min amb max SYMBOL SYMBOL PARAMETER PARAMETER ADC0803 relative accuracy error (adjusted) ADC0804 relative accuracy error (unadjusted input resistance IN REF 3 Analog input voltage range DC common-mode error Power supply sensitivity Control inputs V Logical “1” input voltage ...
Page 5
... This is possible because the magnitude of the input current is a precise linear function of the differential voltage. 5 Product data ADC0803/0804 LIMITS UNIT UNIT Min Typ ...
Page 6
... V IN that minimum value expected at the V differential mode of the converter. Any offset adjustment should be done prior to full scale adjustment. 6 Product data ADC0803/0804 /2) voltage is either 1/2 the voltage applied REF /2 input is 2, making REF /2 REF (– ...
Page 7
... Proper grounding will minimize zero-scale errors which are present in every code. Zero-scale errors can usually be traced to improper board layout and wiring. 7 Product data ADC0803/0804 line can cause conversion errors as the CC pin and values CC supply and the attendant problems. ...
Page 8
... LVDT (Linear Variable Differential Transformer) Signal Conditioner. The diode at the A/D input is used to insure that the input to the A/D does not go excessively beyond the supply voltage of the A/D. See 2002 Oct 17 ADC0803/0804 the NE5521 data sheet for a complete description of the operation of that part. Circuit Adjustment To adjust the full scale and zero scale of the A/D, determine the range of voltages that the transducer interface output will take on ...
Page 9
... V T 2.0 1.5 1.0 4.50 4.75 5.00 5.25 5.50 V SUPPLY VOLTAGE (V) CC 350 300 250 200 150 100 100 120 Figure 3. Typical Performance Characteristics 9 Product data ADC0803/0804 Input Current vs Applied Voltage at V Pin REF 5 amb –1 –2 –3 –4 – APPLIED V ...
Page 10
... C L GND W(WR)L ”NOT BUSY” 1/f CLK INTR RESET t RI NOTE t ACC t t 1H, Output Enable and Reset INTR Figure 5. Timing Diagrams 10 Product data ADC0803/0804 90% RD 50% 10 GND t 0H DATA V OH OUTPUT DATA OUTPUT 10 GND SL00019 ”BUSY” DATA IS VALID IN OUTPUT LATCHES ...
Page 11
... OFFSET ADJUST ZS OFFSET ADJUST Figure 7. Offsetting the Zero Scale and Adjusting the Input 10 SL00021 + (+) A REF V (– Fixed Reference Derived from V CC Figure 8. Absolute Mode of Operation 11 Product data ADC0803/0804 – 330 REF + 0 (–) IN SL00022 Range (Span) + 100 Optional Full Scale Adjustment SL00023 ...
Page 12
... CLK IN 4 INTR 5 A (+) (– GND REF D GND 1/1 CLK SL00026 ANALOG INPUTS 56 pF Figure 12. Interfacing to 8080A Microprocessor 12 Product data ADC0803/0804 + CLK DB0 17 D1 DB1 16 D2 DB2 15 D3 DB3 14 D4 DB4 13 D5 DB5 12 D6 DB6 11 D7 DB7 SL00025 INT I/O WR ...
Page 13
... Loads and for Driving Off-Board Loads 12 A GND 11 D GND SL00028 + 820 LVDT NE5521 22 k 470 IN4148 (+) IN 3 (–) REF IN 13 Product data ADC0803/0804 8–BIT 15 D3 BUFFER DATA 14 D4 BUS 13 D5 N74LS241 N74LS244 12 D6 N74LS541 SL00029 + FULL SCALE 100 ADJUST 2 k ...
Page 14
... HEF4071 3 RBO 1/4 7 HEF4071 3 18 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 INT INTR 5 27 P10 GND Figure 16. Digital Thermostat 14 Product data ADC0803/0804 RBI 5 7 NE587 RBI 5 7 NE587 CLK A/D 4 CLK (+) 6 IN LM35 7 V (– GND SL00031 ...
Page 15
... Philips Semiconductors CMOS 8-bit A/D converters SO20: plastic small outline package; 20 leads; body width 7.5 mm 2002 Oct 17 ADC0803/0804 15 Product data SOT163-1 ...
Page 16
... Philips Semiconductors CMOS 8-bit A/D converters DIP20: plastic dual in-line package; 20 leads (300 mil) 2002 Oct 17 ADC0803/0804 16 Product data SOT146-1 ...
Page 17
... Add “Topside Marking” column to Ordering Information table. _2 20010803 Product data; second version (9397 750 08926). Engineering Change Notice 853–0034 26832 (date: 20010803). _1 19940831 Product data; initial version. Engineering Change Notice 853–0034 13721 (date: 19940831). 2002 Oct 17 ADC0803/0804 17 Product data ...
Page 18
... Relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Fax: + 24825 Document order number: 18 Product data ADC0803/0804 Koninklijke Philips Electronics N.V. 2002 All rights reserved. Printed in U.S.A. Date of release: 10-02 9397 750 10538 ...