AME811A AME [Analog Microelectronics], AME811A Datasheet
AME811A
Related parts for AME811A
AME811A Summary of contents
Page 1
... Low-battery flag, integration and de-integration status flags are three additional features which are available in the 44-pin package, AME811ACKW. * For the operating circuit of the reverse-pins version, please refer to pin configuration on page 4 and pin description on page 5 & 6. 0.1 ...
Page 2
... LCD AME811RCPL LCD AME811ACKW LCD 2 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs Marking Package AME811CPL 40 Pin PDIP YYWW AME811RCPL 40 Pin PDIP YYWW AME811ACKW 44 Pin PQFP YYWW 12V Test to V+ 800mW -55 ...
Page 3
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Electrical Characteristics Unless otherwise noted, AME811 is specified Parameter Zero Input Reading Ratiometric Reading Roll-Over Error (Difference in Reading for Equal Positive and Negative Reading Near Full-Scale) Linearity (Max. Deviation From Best Straight Line Fit) Common-Mode ...
Page 4
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Pin Configurations 4 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs ...
Page 5
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Pin Description 40-pin DIP 40-pin DIP 44-pin PQFP Symbol Pin Number (Reverse) Pin Number 1 (40) 2 (39) 3 (38) 4 (37) 5 (36) 6 (35) 7 (34) 8 (33) 9 (32) 10 (31) 11 (30) 12 (29) 13 (28) 14 (27) 15 (26) 16 (25) 17 (24) 18 (23) 19 (22) 20 (21) 21 (20) ...
Page 6
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Pin Description (Cont.) 40-pin DIP 40-pin DIP 44-pin PQFP Symbol Pin Number (Reverse) Pin Number 34 (7) 35 (6) 36 (5) ¢w ¢w 37 (4) 38 (3) ¢w 39 ( Function Description 6 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs ...
Page 7
... Analog Microelectronics, Inc. AME811/AME811A/AME811R The A/D conversion has the following three phases: 1. Auto-Zero Phase 2. Integration Phase 3. De-integration Phase Auto-Zero Phase The INHI and INLO are shorted to analog common in- ternally. The reference capacitor is charged to the ref- erence voltage. A feedback loop is closed around the system to cancel the offset voltage of buffer, integrator and comparator ...
Page 8
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Digital Block Diagrams 8 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs ...
Page 9
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Digital Section Digital Ground AME811 generates an internal digital ground, typically 5V below the V+. Clock Circuit The clock can be generated in either of the following three methods external oscillator connected to “OSC1” crystal between pins “OSC1” and “OSC2” ...
Page 10
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Test When the TEST is pulled to V+ all segments and the minus sign will be activated. The TEST pin is tied to the internally generated digital ground through a 500 resistor in the AME811 typically 5V lower than V+. TEST pin may be used as the negative power supply for external CMOS logic at the maximum current ...
Page 11
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Integrating Capacitor (Cint) Cint should be selected to maximize the integrator out- put voltage swing without causing output saturation full-scale integrator output swing is recommended if “ANALOG COMMON” is used as signal reference. For 3 readings/second (fosc = 48 KHz) a 0.22 F value is suggested different oscillator frequency is used, ...
Page 12
... Analog Microelectronics, Inc. AME811/AME811A/AME811R Typical Applications 12 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs ...
Page 13
... Analog Microelectronics, Inc. AME811/AME811A/AME811R 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs 13 ...
Page 14
... Analog Microelectronics, Inc. AME811/AME811A/AME811R 14 3-1/2 Digit A/D Converter - Low Power With HOLD And Differential Reference Inputs ...
Page 15
E-Mail: info@analogmicro.com These products of Analog Microelectronics, Inc. are not authorized for use as critical components in life- support devices or systems, without the express written approval of the president Analog Microelectronics, Inc. reserves the right to make changes in ...