TC500ACPE TELCOM SEMICONDUCTOR, TC500ACPE Datasheet

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TC500ACPE

Manufacturer Part Number
TC500ACPE
Description
IC, ANALOGUE PROCESSOR, DIP16, 500
Manufacturer
TELCOM SEMICONDUCTOR
Datasheet

Specifications of TC500ACPE

Brief Features
Low Power Dissipation, Automatic Input Voltage Polarity Detection
Supply Voltage Range
4.5V To 7.5V
Operating Temperature Range
0°C To +70°C
Digital Ic Case Style
DIP
No. Of
RoHS Compliant
Ic Function
Precision Analogue Front Ends
Rohs Compliant
Yes

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Features
• Precision (up to 17 bits) A/D Converter “Front
• 3-Pin Control Interface to Microprocessor
• Flexible: User Can Trade-off Conversion Speed
• Single-Supply Operation (TC510/TC514)
• 4 Input, Differential Analog MUX (TC514)
• Automatic Input Voltage Polarity Detection
• Low Power Dissipation:
• Wide Analog Input Range:
• Directly Accepts Bipolar and Differential
Applications
• Precision Analog Signal Processor
• Precision Sensor Interface
• High Accuracy DC Measurements
 2004 Microchip Technology Inc.
End”
for Resolution
- (TC500/TC500A): 10 mW
- (TC510/TC514): 18 mW
- ±4.2V (TC500A/TC510)
Input Signals
Precision Analog Front Ends
TC500/A/510/514
General Description
TheTC500/A/510/514 family are precision analog front
ends that implement dual slope A/D converters having
a maximum resolution of 17 bits plus sign. As a
minimum, each device contains the integrator, zero
crossing comparator and processor interface logic. The
TC500 is the base (16-bit max) device and requires
both positive and negative power supplies. The
TC500A is identical to the TC500 with the exception
that it has improved linearity, allowing it to operate to a
maximum resolution of 17 bits. The TC510 adds an on-
board negative power supply converter for single-
supply operation. The TC514 adds both a negative
power supply converter and a 4-input differential
analog multiplexer.
Each device has the same processor control interface
consisting of 3 wires: control inputs (A and B) and zero-
crossing comparator output (CMPTR). The processor
manipulates A, B to sequence the TC5XX through four
phases of conversion: auto-zero, integrate, de-inte-
grate and integrator zero. During the auto-zero phase,
offset voltages in the TC5XX are corrected by a closed
loop feedback mechanism. The input voltage is applied
to the integrator during the integrate phase. This
causes an integrator output dv/dt directly proportional
to the magnitude of the input voltage. The higher the
input voltage, the greater the magnitude of the voltage
stored on the integrator during this phase. At the start
of the de-integrate phase, an external voltage
reference is applied to the integrator and, at the same
time, the external host processor starts its on-board
timer. The processor maintains this state until a
transition occurs on the CMPTR output, at which time
the processor halts its timer. The resulting timer count
is the converted analog data. Integrator zero (the final
phase of conversion) removes any residue remaining
in the integrator in preparation for the next conversion.
The TC500/A/510/514 offer high resolution (up to 17
bits), superior 50/60 Hz noise rejection, low-power
operation, minimum I/O connections, low input bias
currents and lower cost compared to other converter
technologies having similar conversion speeds.
DS21428C-page 1

Related parts for TC500ACPE

TC500ACPE Summary of contents

Page 1

Precision Analog Front Ends Features • Precision ( bits) A/D Converter “Front End” • 3-Pin Control Interface to Microprocessor • Flexible: User Can Trade-off Conversion Speed for Resolution • Single-Supply Operation (TC510/TC514) • 4 Input, Differential Analog MUX ...

Page 2

TC500/A/510/514 Package Types 16-Pin PDIP/SOIC/CERDIP C 1 INT BUF 4 TC500/ TC500A ACOM 5 C – 6 REF REF V 8 REF 24-Pin PDIP/SOIC V – 1 OUT C 2 INT ...

Page 3

ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings† TC510/TC514 Positive Supply Voltage (V to GND) ......................................... +10.5V DD TC500/TC500A Supply Voltage ( .............................................. +18V DD SS TC500/TC500A Positive Supply Voltage (V to GND) ............................................ +12V DD TC500/TC500A Negative Supply ...

Page 4

TC500/A/510/514 DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise specified, TC510/TC514 0.47 µF. AZ REF Parameters Sym Min. Voltage Reference REF SS Range Digital Comparator Logic Output High Comparator ...

Page 5

TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or ...

Page 6

TC500/A/510/514 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. TC500, TC500A TC510 TC514 Symbol INT 2 Not Used Not Used ...

Page 7

DETAILED DESCRIPTION 4.1 Dual Slope Conversion Principles Actual data conversion is accomplished in two phases: input signal integration and reference voltage de- integration. The integrator output is initialized to 0V prior to the start of integration. During integration, analog ...

Page 8

TC500/A/510/514 Analog Input ( ± Ref Voltage REF V 1 INT DEINT FIGURE 4-3: Basic Dual Slope Converter. DS21428C-page 8 C INT Integrator R INT – V INT – ...

Page 9

TC500/A/510/514 CONVERTER OPERATION The TC500/A/510/514 incorporates an auto-zero and Integrator phase in addition to the input signal Integrate and reference De-integrate phases. The addition of these phases reduce system errors, calibration steps and shorten overrange recovery time. A typical ...

Page 10

TC500/A/510/514 T TIME Converter Status Auto-zero Full-scale Input Integrator 0 Voltage V INT Undefined Comparator Output Inputs Begin Conversion with Controller Auto-Zero Phase Operation Typically = T INT (Positive Input Shown) ...

Page 11

ANALOG SECTION 6.1 Differential Inputs ( The TC5XX operates with differential voltages within the input amplifier Common mode range. The amplifier Common mode range extends from 1.5V below positive supply to 1.5V above negative supply. Within this ...

Page 12

TC500/A/510/514 7.0 TYPICAL APPLICATIONS 7.1 Component Value Selection The procedure outlined below allows the user to arrive at values for the following TC5XX design variables: 1. Integration Phase Timing. 2. Integrator Timing Components (R INT 3. Auto-zero and Reference Capacitors. ...

Page 13

DESIGN CONSIDERATIONS 8.1 Noise The threshold noise ( the algebraic sum of the TH integrator and comparator noise and is typically 30 µV. Figure 8-1 illustrates how the value of the reference voltage can affect the final ...

Page 14

TC500/A/510/514 S 30V N TH Low V REF FIGURE 8-1: Noise Threshold. 8.6 Integrator Output Zero Phase The comparator delay and the controller's response latency may result in overshoot, causing charge buildup on the integrator at the end of a ...

Page 15

DESIGN EXAMPLES Refer to Figures 9-1 to 9-4. Given: Required Resolution: 16 bits (65,536 counts). Maximum V : ±2V IN Power Supply Voltage: + System Step 1. Pick integration time (t INT of the line frequency: 1/60 ...

Page 16

TC500/A/510/514 1 V OUT C INT 1 µF 0.33 µ INT C AZ 0.22 µ +5V BUF R INT 100 k 5 ACOM 6 MCP1525 C C REF REF R 0.22 µ ...

Page 17

PC Printer Port PORT 0378 HEX 10 19 CMPTR FIGURE 9-3: TC510 To IBM  2004 Microchip Technology Inc. TC500/A/510/514 µ OUT CAP- 1 µF ...

Page 18

TC500/A/510/514 + CH1+ Input 1 13 – CH1– CH2+ Input 2 12 – CH2– 16 CH3+ + Input 3 11 – CH3– 15 CH4+ + Input 4 10 CH4– – Analog Mux Control Logic ...

Page 19

PACKAGING INFORMATION 10.1 Package Marking Information 16-Lead CERDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 16-Lead PDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 16-Lead SOIC (300 mil) XXXXXXXXXXXXX XXXXXXXXXXXXX YYWWNNN Legend: XX...X Customer specific information* YY Year code (last 2 digits of ...

Page 20

TC500/A/510/514 Package Marking Information (Continued) 24-Lead PDIP (300 mil) XXXXXXXXXXXXX YYWWNNN 24-Lead SOIC (300 mil) XXXXXXXXXXXXX XXXXXXXXXXXXX YYWWNNN 28-Lead PDIP (300 mil) XXXXXXXXXXXXXX XXXXXXXXXXXXXX YYWWNNN 28-Lead SOIC (300 mil) XXXXXXXXXXXXX XXXXXXXXXXXXX XXXXXXXXXXXXX YYWWNNN DS21428C-page 20 Example: TC510CPF 0441256 Example: TC510COG ...

Page 21

Ceramic Dual In-line (JE) – 300 mil (CERDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Standoff § Shoulder to Shoulder Width Ceramic Pkg. Width Overall Length Tip to Seating Plane Lead Thickness ...

Page 22

TC500/A/510/514 16-Lead Plastic Dual In-line (PE) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width ...

Page 23

Plastic Small Outline (OE) – Wide, 300 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance ...

Page 24

TC500/A/510/514 24-Lead Skinny Plastic Dual In-line (PF) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package ...

Page 25

Plastic Small Outline (OG) – Wide, 300 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width Overall Length Chamfer Distance Foot ...

Page 26

TC500/A/510/514 28-Lead Skinny Plastic Dual In-line (PJ) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder ...

Page 27

Plastic Small Outline (OI) – Wide, 300 mil (SOIC Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Overall Length Chamfer Distance ...

Page 28

TC500/A/510/514 10.2 Product Tape and Reel Specifications Component Taping Orientation for 16-Pin SOIC (Wide) Devices PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package 16-Pin SOIC (W) Component Taping Orientation for 24-Pin SOIC (Wide) Devices PIN ...

Page 29

Product Tape and Reel Specifications (Continued) Component Taping Orientation for 28-Pin SOIC (Wide) Devices PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size Package 28-Pin SOIC (W)  2004 Microchip Technology Inc. TC500/A/510/514 User Direction of Feed ...

Page 30

TC500/A/510/514 NOTES: DS21428C-page 30  2004 Microchip Technology Inc. ...

Page 31

... Microchip Technology Inc. TC500/A/510/514 . Examples: a) TC500ACOE: Commercial Temp., 16LD SOIC package. b) TC500ACOE713: Commercial Temp., 16LD SOIC package, Tape and Reel. c) TC500ACPE: Commercial Temp., 16LD PDIP package. d) TC500AIJE: Industrial Temp., 16LD CERDIP package. a) TC500COE: Commercial Temp., 16LD SOIC package. b) TC500COE713: Commercial Temp., 16LD SOIC package, Tape and Reel ...

Page 32

TC500/A/510/514 NOTES: DS21428C-page 32  2004 Microchip Technology Inc. ...

Page 33

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 34

W ORLDWIDE AMERICAS Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: www.microchip.com Atlanta 3780 Mansell Road, Suite 130 Alpharetta, GA 30022 Tel: 770-640-0034 Fax: 770-640-0307 Boston 2 Lan Drive, Suite ...

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