ADC10461CIWM National Semiconductor, ADC10461CIWM Datasheet
ADC10461CIWM
Available stocks
Related parts for ADC10461CIWM
ADC10461CIWM Summary of contents
Page 1
... I/O port without the need for exter- nal interface logic. Simplified Block Diagram *ADC10461 Only **ADC10462 and ADC10464 Only ***ADC10464 Only © 2006 National Semiconductor Corporation Features n Built-in sample-and-hold n Single +5V supply n No external clock required n Speed adjust pin for faster conversions (ADC10462 and ...
Page 2
... Ordering Information Industrial Temp Range (−40˚C ≤ T ≤ +85˚C) A ADC10461CIWM * ADC10461CIWMX * ADC10462CIWM * ADC10462CIWMX * ADC10464CIWM ADC10464CIWMX * These devices are obsolete; shown for reference only. Connection Diagrams 01110810 This device is obsolete; shown for reference only. Top View NOTE: The ADC10461 and ADC10462 are obsolete; shown for reference only. ...
Page 3
Pin Descriptions Pin Function Digital and analog positive supply voltage inputs. Connect both to the same voltage source, but CC CC bypass separately with a 0.1 µF ceramic capacitor in parallel with a 10 µF tantalum capacitor ...
Page 4
... kHz (Notes 1, 2) ≤ MIN A −40˚C ≤ T +4.5V to +5.5V θ Device (˚C/W) JA ADC10461CIWM 85 ADC10462CIWM 82 ADC10464CIWM +25˚ Typical Limit (Note 7) (Note 8) 10 ± 0.5 ± 1.5 ± 1 ± 0.5 0 ± 1/16 ± 1 ⁄ 8 −68 − ...
Page 5
DC Electrical Characteristics The following specifications apply for V wise specified. Boldface limits apply for T Symbol Parameter V Logical “1” Input Voltage IN(1) V Logical “0” Input Voltage IN(0) I Logical “1” Input Current IN(1) I Logical “0” Input ...
Page 6
AC Electrical Characteristics Note 6: See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in a current National Semiconductor Linear Data Book for other methods of soldering surface mount devices. Note ...
Page 7
Timing Diagrams FIGURE 1. Mode 1. The conversion time (t FIGURE 2. Mode 2 (RD Mode). The conversion time (t sampling time and is determined by the internal timer set by the internal timer. CONV ) includes the ...
Page 8
Typical Performance Characteristics Zero (Offset) Error vs. Reference Voltage Analog Supply Current vs. Temperature Conversion Time vs. Temperature www.national.com vs. Reference Voltage 01110815 Digital Supply Current 01110817 01110819 8 Linearity Error 01110816 vs. Temperature 01110818 Conversion Time vs. Temperature 01110820 ...
Page 9
Typical Performance Characteristics Conversion Time vs. Speed-Up Resistor (ADC10462 and ADC10464 Only) Spectral Response with 100 kHz Sine Wave Input Signal-to-Noise + THD Ratio vs. Signal Frequency (Continued) vs. Speed-Up Resistor (ADC10462 and ADC10464 Only) 01110821 Spectral Response with 100 ...
Page 10
Typical Performance Characteristics Linearity Change vs. Speed-Up Resistor (ADC10462 and ADC10464 Only) www.national.com (Continued) Linearity Error Change 01110827 10 vs. Sample Time 01110828 ...
Page 11
Functional Description The ADC10461 and the ADC10462 are obsolete and dis- cussed here for reference only. The ADC10461, ADC10462 and ADC10464 digitize an ana- log input signal to 10 bits accuracy by performing two lower- resolution “flash” conversions. The first ...
Page 12
Functional Description FIGURE 3. Block Diagram of the Multistep Converter Architecture SIMILAR PRODUCT DIFFERENCES The ADC1046x, ADC1046x and ADC1066x (where "x" indi- cates the number of multiplexer inputs) are similar devices with different specification limits. The differences in these device ...
Page 13
Applications Information completed. Approximately 20 ns later the data appearing on the TRI-STATE output pins will be valid. Note that data will appear on these pins throughout the conversion, but until INT goes low the data at the output pins ...
Page 14
Applications Information 4.0 INHERENT SAMPLE-AND-HOLD Because the ADC10461, ADC10462, and ADC10464 sample the input signal once during each conversion, they are capable of measuring relatively fast input signals without the help of an external sample-hold non-sampling successive-approximation A/D ...
Page 15
Applications Information resistor value needed to obtain a given conversion time will vary from part to part, so this technique will generally require some “tweaking” to obtain satisfactory results. For applications that require guaranteed performance using (Continued) the speed adjust ...
Page 16
... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted Order Number ADC10461CIWM NS Package Number M20B Order Number ADC10462CIWM NS Package Number M24B 16 ...
Page 17
... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...