TC510CPF Microchip Technology, TC510CPF Datasheet

TC510CPF

Manufacturer Part Number

TC510CPF

Description

IC ANALOG FRONT END 17BIT 24DIP

Manufacturer

Microchip Technology

Type

Precision Analog Front Endsr

Datasheets

1.TC500CPE.pdf (38 pages)

2.TC500ACOE.pdf (34 pages)

Specifications of TC510CPF

Number Of Channels

Package / Case

24-DIP (0.300", 7.62mm)

Number Of Bits

Power (watts)

18mW

Voltage - Supply, Analog

Voltage - Supply, Digital

4.5 V ~ 5.5 V

Interface Type

Serial (3-Wire)

Supply Voltage (min)

4.5 V

Supply Current

1.8 mA

Maximum Operating Temperature

+ 70 C

Minimum Operating Temperature

0 C

Mounting Style

Through Hole

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 38
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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

End”

for Resolution

- (TC500/TC500A): 10 mW

- (TC510/TC514): 18 mW

- ±4.2V (TC500A/TC510)

Input Signals

Precision Analog Front Ends with Dual Slope ADC

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-

integrate 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.

DS21428E-page 1

Related parts for TC510CPF

TC510CPF Summary of contents

Page 1

... Input Signals Applications: • Precision Analog Signal Processor • Precision Sensor Interface • High Accuracy DC Measurements © 2008 Microchip Technology Inc. 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 minimum, each device contains the integrator, zero crossing comparator and processor interface logic ...

Page 2

... Control Logic A B Converter Sate 0 0 Zero Integrator Output 0 1 Auto-Zero 1 0 Signal Integrate 1 1 De-integrate INT TC500 TC500A TC510 CMPTR 1 TC514 CMPTR 2 + Level CMPTR Shift Output + Polarity Detection Phase DGND Decoding Logic Control Logic (TC500 TC500A) © 2008 Microchip Technology Inc. ...

Page 3

... End point linearity at ±1/4, ±1/2, ±3/4 F.S. after full-scale adjustment. 2: Rollover error is related INT © 2008 Microchip Technology Inc. TC500/A/510/514 † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional ...

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... Osc. Freq. = 100 kHz 150 CAP = 1 µF 125 100 CAP = 10 µ Load Current (mA) FIGURE 2-2: Output Ripple vs. Load Current. 100 100 Oscillator Capacitance (pF) FIGURE 2-3: Oscillator Frequency vs. Capacitance. © 2008 Microchip Technology Inc. TC500/A/510/514 - +25 ° FIGURE 2-4: Current. 100 OUT ...

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... Microchip Technology Inc. TC500/A/510/514 Table 3-1. Symbol C Integrator output. Integrator capacitor connection. INT V Negative power supply input (TC500/TC500A only Auto-zero input. The auto-zero capacitor connection. AZ BUF Buffer output. The Integrator capacitor connection. ...

Page 8

... TABLE 3-1: PIN FUNCTION TABLE (CONTINUED) TC500, TC510 TC514 TC500A CERDIP, PDIP, SOIC PDIP, SOIC PDIP, SOIC — — 19 DS21428E-page 8 Symbol Function A1 Multiplexer input channel select input MSB. Phase control input pins: A1 Channel Channel Channel Channel 4 © 2008 Microchip Technology Inc. ...

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... Integrating ADCs are immune to the large conversion errors that plague successive approximation converters in high noise environments. © 2008 Microchip Technology Inc. TC500/A/510/514 Integrating converters provide inherent noise rejection with at least a 20dB/decade attenuation rate. ...

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... FIGURE 4-3: Basic Dual Slope Converter. DS21428E-page 10 C INT Integrator R INT – V INT – Phase Switch Driver Control Polarity Control V SUPPLY V INT ROM REF RAM TC510 Comparator CMPTR Out Control Logic A B I/O Microcomputer Timer Counter © 2008 Microchip Technology Inc. ...

Page 11

... Common mode range V input signal polarity is normally checked via software at the end of this phase: CMPTR = 1 for positive polarity; CMPTR = 0 for negative polarity. © 2008 Microchip Technology Inc. TC500/A/510/514 The internal analog switch status for each of these phases is summarized in references the Typical Application ...

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... For Positive Input Time Input Capture Integration De-integration Phase Time Sample Input Polarity T INT Comparator Delay + Processor Latency Output Zero Integrator Ready for Next Output Conversion Zero Phase (Auto-Zero is Complete Idle State) Minimizing Overshoot will Minimize I.O.Z. Time © 2008 Microchip Technology Inc. ...

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... Integrate Integrator Output Comparator Output A. Positive Input Signal FIGURE 6-1: Comparator Output. © 2008 Microchip Technology Inc. TC500/A/510/514 The difference in reference for (+) or (-) input voltages will cause a rollover error. This error can be minimized by using a large reference capacitor in comparison –) IN the stray capacitance. ...

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... Recommended REF capacitors for C and C are shown in REF AZ Larger values for C and C may also be used to AZ REF limit rollover errors. © 2008 Microchip Technology Inc. TC500/A/510/514 TABLE 7-1: Conversions Per Second > less * Manufactured by Evox Rifa, Inc INT 7.6 Calculate Integrating Capacitor ...

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... N TH Low V REF FIGURE 8-1: Noise Threshold. © 2008 Microchip Technology Inc. TC500/A/510/514 8.3 Auto-zero Phase The length of this phase is usually set to be equal to the input signal integration time. This decision is virtually arbitrary since the magnitudes of the various system errors are not known. Setting the auto-zero time equal to the Input Integrate time should be more than adequate to null out system errors ...

Page 18

... A0). These are high-true control signals (i.e., channel 0 is selected when (A1 00). Integrator Zero Phase for negative bias within the TC510/ DD – pin OUT is switched across the power supply and +. This charge is transferred to capacitor . The relationship between DD © 2008 Microchip Technology Inc. ...

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... REF (see Table 7-1) Microchip recommended capacitor: Note: Evox Rifa p/n: 5MR5 224K50J02L4 Calculate V : Step 5. REF EQUATION 9- – 0.9 S INT INT ---------------------------------------------------------- - REF 2 T INT × 6 – 0. 100 10 ( 4.1 = ------------------------------------------------------------------------- - × 3 – 1.025 © 2008 Microchip Technology Inc. TC500/A/510/514 ) as a multiple - 0. × DS21428E-page 19 ...

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... INPUT 1- 17 CH2+ INPUT 2+ 12 CH2- INPUT 2- 16 CH3+ INPUT 3+ 11 CH3- INPUT 3- 15 CH4+ INPUT4+ 10 CH4- INPUT4- Typical Waveforms +5V Pin Pin 19 ® PIC MCU Pin Pin 19 +5V ® PIC MCU Typical Waveforms PIN PIN 23 PIN PIN 23 © 2008 Microchip Technology Inc. ...

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... PC Printer Port PORT 0378 Hex 10 19 CMPTR FIGURE 9-3: TC510 To IBM © 2008 Microchip Technology Inc. TC500/A/510/514 μ OUT CAP μ 22 CAP REF 0. REF REF TC510 0. REF 100 kΩ 4 BUF 0.22 F μ 0. INT 100 kΩ 0. ACOM DGND 23 ® Compatible Printer Port. ...

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... V V OUT CAP– μ 26 CAP REF 0. REF REF 0.01 TC514 REF 100 kΩ 4 BUF 0.22 F μ INT 5 ACOM DGND 27 ® Compatible Printer Port. F μ 10 kΩ MCP1525 F μ 10 kΩ 10 kΩ F μ 0.33 F μ © 2008 Microchip Technology Inc. ...

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... In the event the full Microchip part number cannot be marked on one line, it will Note: be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2008 Microchip Technology Inc. TC500/A/510/514 Example: TC500AIJE 0818256 ...

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... XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNNN 24-Lead SOIC (300 mil) (TC510) XXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXX YYWWNNN 28-Lead PDIP (300 mil) (TC514) XXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXX YYWWNNN 28-Lead SOIC (300 mil) (TC514) XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXX YYWWNNN DS21428E-page 24 Example: TC510CPF 0818256 Example TC510COG 3 0818256 Example: ^^ TC514CPJ e 3 0818256 Example TC514COI ...

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... Microchip Technology Inc. TC500/A/510/514 DS21428E-page 25 ...

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... Microchip Technology Inc. TC500/A/510/514 φ β α DS21428E-page 27 ...

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... Microchip Technology Inc. TC500/A/510/514 DS21428E-page 29 ...

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... Microchip Technology Inc. TC500/A/510/514 DS21428E-page 31 ...

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... Updated Section 10.0 “Packaging Informa- tion”. Revision D (January 2006) • Undocumented changes. Revision C (January 2004) • Undocumented changes. Revision B (May 2002) • Undocumented changes. Revision A (March 2001) • Initial release of this document. © 2008 Microchip Technology Inc. TC500/A/510/514 DS21428E-page 33 ...

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... TC500ACOE713: c) TC500ACPE: d) TC500AIJE: a) TC500COE: b) TC500COE713: c) TC500CPE: d) TC500IJE: a) TC510COG: b) TC510COG713: c) TC510CPF: a) TC514COI: b) TC514COI713: c) TC514CPJ: . Commercial Temp., 16LD SOIC package. Commercial Temp., 16LD SOIC package, Tape and Reel. Commercial Temp., 16LD PDIP package. Industrial Temp., 16LD CERDIP package. Commercial Temp., 16LD SOIC package. ...

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... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 38

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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