TC7107CPL Microchip Technology, TC7107CPL Datasheet

IC ADC 3 1/2DGT LED DVR 40-DIP

TC7107CPL

Manufacturer Part Number
TC7107CPL
Description
IC ADC 3 1/2DGT LED DVR 40-DIP
Manufacturer
Microchip Technology
Datasheets

Specifications of TC7107CPL

Package / Case
40-DIP (0.600", 15.24mm)
Display Type
LED
Configuration
7 Segment
Digits Or Characters
A/D 3.5 Digits
Current - Supply
800µA
Voltage - Supply
5V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Architecture
Dual Slope
Input Type
Voltage
Maximum Power Dissipation
1230 mW
Maximum Operating Temperature
+ 70 C
Mounting Style
Through Hole
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
158-1129
158-1129

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TC7107CPL
Manufacturer:
FSC
Quantity:
340
Features:
• Internal Reference with Low Temperature Drift:
• Drives LCD (TC7106) or LED (TC7107)
• Zero Reading with Zero Input
• Low Noise for Stable Display
• Auto-Zero Cycle Eliminates Need for Zero
• True Polarity Indication for Precision Null
• Convenient 9V Battery Operation (TC7106A)
• High-Impedance CMOS Differential Inputs: 10
• Differential Reference Inputs Simplify Ratiometric
• Low-Power Operation: 10 mW
Applications:
• Thermometry
• Bridge Readouts: Strain Gauges, Load Cells, Null
• Digital Meters: Voltage/Current/Ohms/Power, pH
• Digital Scales, Process Monitors
• Portable Instrumentation
© 2008 Microchip Technology Inc.
- TC7106/TC7107: 80 ppm/°C (Typical)
- TC7106A/TC7107A: 20 ppm/°C (Typical)
Display Directly
Adjustment
Applications
Measurements
Detectors
3-1/2 Digit Analog-to-Digital Converters
TC7106/A/TC7107/A
12
Ω
General Description:
The TC7106A and TC7107A 3-1/2 digit direct display
drive Analog-to-Digital Converters allow existing
TC7106/TC7107 based systems to be upgraded. Each
device has a precision reference with a 20 ppm/°C
maximum temperature coefficient. This represents a 4
to 7 times improvement over similar 3-1/2 digit
converters. Existing TC7106 and TC7107 based
systems may be upgraded without changing external
passive component values. The TC7107A drives
common anode light emitting diode (LED) displays
directly with 8 mA per segment. A low cost, high
resolution indicating meter requires only a display, four
resistors, and four capacitors. The TC7106A low-power
drain and 9V battery operation make it suitable for por-
table applications.
The TC7106A/TC7107A reduces linearity error to less
than 1 count. Rollover error – the difference in readings
for equal magnitude, but opposite polarity input signals,
is below ±1 count. High-impedance differential inputs
offer 1 pA leakage current and a 10
impedance. The differential reference input allows
ratiometric
transducer measurements. The 15 µV
performance ensures a “rock solid” reading. The auto-
zero cycle ensures a zero display reading with a zero
volts input.
measurements
for
ohms
DS21455D-page 1
P–P
or
12
Ω input
bridge
noise

Related parts for TC7107CPL

TC7107CPL Summary of contents

Page 1

... Bridge Readouts: Strain Gauges, Load Cells, Null Detectors • Digital Meters: Voltage/Current/Ohms/Power, pH • Digital Scales, Process Monitors • Portable Instrumentation © 2008 Microchip Technology Inc. TC7106/A/TC7107/A General Description: The TC7106A and TC7107A 3-1/2 digit direct display drive Analog-to-Digital Converters allow existing TC7106/TC7107 based systems to be upgraded. Each device has a precision reference with a 20 ppm/° ...

Page 2

... DS21455D-page 2 44-Pin PLCC OSC1 OSC2 OSC3 TEST REF REF REF REF ANALOG C 11 COMMON TC7106ACLW TC7107ACLW BUFF 2 V INT 100s ' BP/GND (7106A/7107A) 44-Pin MQFP TC7106ACKW TC7107ACKW REF REF 37 C REF COMMON A/Z 31 BUFF 30 INT BP/GND 27 POL © 2008 Microchip Technology Inc. ...

Page 3

... Typical Application 1 M Ω + Analog 0.01 µF Input – Ω 0.22 µF © 2008 Microchip Technology Inc. TC7106/A/TC7107/A 0.1 µF LCD Display (TC7106/A) or Common Node with LED REF REF 31 Segment Drive POL IN Minus Sign 21 BP ANALOG 32 1 COMMON V+ TC7106/A TC7107 /A 28 ...

Page 4

... Device = -25°C to +85°C ppm/° 199.0 mV, IN “C” Device = 0°C to +70°C (Ext. Ref = 0 ppm°C) ppm/° 199 “I” Device = -25°C to +85° 0 kΩ Between Common and Positive Supply © 2008 Microchip Technology Inc. ...

Page 5

... Refer to “Differential Input” discussion. 4: Backplane drive is in phase with segment drive for “OFF” segment, 180° out of phase for “ON” segment. Frequency is 20 times the conversion rate. Average DC component is less than 50 mV. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A Symbol ...

Page 6

... A 0.1 µF capacitor is used in most applications large Common mode voltage exists (for example, the V - pin is not at analog common), and a 200 mV scale is IN used µF capacitor is recommended and will hold the rollover error to 0.5 count. See Pin 36. © 2008 Microchip Technology Inc. ...

Page 7

... OSC2 40 (1) OSC1 © 2008 Microchip Technology Inc. TC7106/A/TC7107/A Description The analog input required to generate a full scale output (1999 counts). Place 100 mV between Pins 35 and 36 for 199.9 mV full scale. Place 1V between Pins 35 and 36 for 2V full scale. See paragraph on Reference Voltage. ...

Page 8

... T = Measured Period 1/T 10/T Input Frequency Normal Mode Rejection of ⎞ V ⎛ ⎛ ⎞ ------------ - ----------- 4000 ⎝ ⎠ ⎝ ⎠ OSC INT = ----------------------------------------------------- - INT V INT Clock Frequency at Pin 38 Full Scale Input Voltage Integrating Resistor Desired Full Scale Integrator Output Swing © 2008 Microchip Technology Inc. ...

Page 9

... The sign bit is a true polarity indication, in that signals less than 1 LSB are correctly determined. This allows precision null detection limited only by device noise and auto-zero residual offsets. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A 4.3 Reference Integrate Phase The third phase is reference integrate or de-integrate. ...

Page 10

... Display Font and Segment Assignment In the TC7106A, an internal digital ground is generated from a 6-volt zener diode and a large P channel source follower. This supply is designed to absorb the large capacitive currents when the backplane voltage is switched. DS21455D-page 10 For three - are reversed © 2008 Microchip Technology Inc. ...

Page 11

... FIGURE 5-2: TC7106A Block Diagram. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A DS21455D-page 11 ...

Page 12

... An external oscillator connected to Pin 40 crystal between Pins 39 and 40 oscillator using all three pins. + are reversed, 40 Crystal EXT RC Network OSC four-phase FIGURE 6-1: Figure 6-1): TC7106A TC7107A To µ 4 Counter TEST Pin on TSC7106A To GND Pin on TSC7107A Clock Circuits. © 2008 Microchip Technology Inc. ...

Page 13

... FIGURE 6-2: TC7107A Block Diagram. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A DS21455D-page 13 ...

Page 14

... Nominal Full Scale Voltage 200.0 mV 2.000V 0.47 µF 0.047 µF 47 kΩ 470 kΩ 0.22 µF 0.22 µ kHz (3 readings per sec). is OSC 0. --------- - OSC RC 48 kHz 100 pF is divided by four to generate the by 800. OSC V REF 100.0 mV 1.000V © 2008 Microchip Technology Inc. ...

Page 15

... The internal voltage reference potential available at analog common will normally be used to supply the converter’s reference. This potential whenever the supply potential is greater than approximately 7V. In applications where an externally generated reference voltage is desired, refer to Figure 7-1. © 2008 Microchip Technology Inc. TC7106/A/TC7107 REF + V REF - TC7106A TC7107A ...

Page 16

... Common mode voltage concerns. In systems Integrator where V- is connected to the power supply ground given voltage, analog common should be V – connected to V 4000 = F OSC ≠ COM IN + (Pin 36 (Pin 35) REF should be large REF + and not externally IN - are usually connected © 2008 Microchip Technology Inc. - ...

Page 17

... The TEST pin will sink about 10 mA when pulled to V+. 8.5 Internal Voltage Reference The analog common voltage temperature stability has been significantly improved (Figure version of the industry standard circuits allow users to upgrade old systems and design new systems without © 2008 Microchip Technology Inc. TC7106/A/TC7107/A Segment BUF AZ ...

Page 18

... By reducing the LED common anode voltage, the TC7107A package power dissipation is reduced. Figure 9 curve tracer display showing the relationship between output current and output voltage for a typical TC7107CPL. Since a typical LED has 1.8 0.047 volts across mA, and its common anode is 1N914 µF + connected to +5V, the TC7107A output ...

Page 19

... F 0.22 100 pF 0.01 µ F µ F TP5 TP2 0.1 100 µ kΩ TP1 kΩ TC7107A 1 10 Display 5.1 Ω 1/4W 1N4001 FIGURE 9-4: Diode or Resistor Limits Package Power Dissipation. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A 150Ω Display 21 20 DS21455D-page 19 ...

Page 20

... Decimal Point 1N4148 Sensor R 2 Ω FIGURE 10-3: R UNKNOWN × ---------------------------- - = 1000 R STANDARD ≥ STANDARD REF V - REF LCD Display TC7106A - V IN Analog Common Low Parts Count + 9V Ω Ω 300 k 300k Ω TC7106A REF V - REF Common Temperature Sensor. © 2008 Microchip Technology Inc. ...

Page 21

... To Display Backplane FIGURE 10-5: TC7106A, Using the Internal Reference: 200 mV Full Scale, 3 Readings-Per- Second (RPS). © 2008 Microchip Technology Inc. TC7106/A/TC7107 TC7106A TC7107A + - FIGURE 10-6: 200 mV Full Scale, 3RPS, V Single Ended Inputs Ω 1M Ω – ...

Page 22

... REF 100pF 10k Ω 10k Ω Ω 0.1 µ 1.2V 1M Ω IN 0.01µF 0.47µ F – 47k Ω 0.22 µF To Display TC7107 Operated from + TC7106A REF REF 32 Analog Common 0.01 µ SEG DRIVE LCD Display © 2008 Microchip Technology Inc. ...

Page 23

... Constant 5V V+ REF02 6 V OUT 5 ADJ 3 TEMP Temperature Dependent Output GND 4 FIGURE 10-11: Integrated Circuit Temperature Sensor. © 2008 Microchip Technology Inc. TC7106/A/TC7107 Ω 5.1 k Ω TC911 50 k Ω – OUT 1.86V @ 25× Ω 1. REF TC7106A V - REF V = 2.00V Common V- 26 ...

Page 24

... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21455D-page 24 Example: e TC7106CPL^^ 3 0743256 *h Example: M TC106CKW e ^^0743256 3 Example: M TC7106CLW e 3 ^^0743256 © 2008 Microchip Technology Inc. ...

Page 25

... N NOTE © 2008 Microchip Technology Inc. TC7106/A/TC7107 DS21455D-page 25 ...

Page 26

... TC7106/A/TC7107 NOTE β DS21455D-page NOTE 2 φ α A2 © 2008 Microchip Technology Inc. ...

Page 27

... NOTE © 2008 Microchip Technology Inc. TC7106/A/TC7107/A CH2 x 45° CH1 x 45° CH3 x 45° DS21455D-page 27 ...

Page 28

... TC7106/A/TC7107/A NOTES: DS21455D-page 28 © 2008 Microchip Technology Inc. ...

Page 29

... Updated the Product Identification System page. Revision C (April 2006) The following is the list of modifications: • Undocumented Changes. Revision B (May 2002) The following is the list of modifications: • Undocumented Changes. Revision A (April 2002) • Original Release of this Document. © 2008 Microchip Technology Inc. TC7106/A/TC7107/A DS21455D-page 29 ...

Page 30

... TC7106/A/TC7107/A NOTES: DS21455D-page 30 © 2008 Microchip Technology Inc. ...

Page 31

... Package Plastic Leaded Chip Carrier (PLCC), 44-lead PL = Plastic DIP, (600 mil Body), 40-lead KW = Plastic Metric Quad Flatpack, (MQFP), 44-lead Tape & Reel: 713 = Tape and Reel © 2008 Microchip Technology Inc. TC7106/A/TC7107/A Examples: XXX a) TC7106CLW: Tape & Reel b) TC7106CPL: c) ...

Page 32

... TC7106/A/TC7107/A NOTES: DS21455D-page 32 © 2008 Microchip Technology Inc. ...

Page 33

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, 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 34

... 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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