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

TC7116CPL

Manufacturer Part NumberTC7116CPL
DescriptionIC ADC 3 1/2DGT LCD DVR 40-DIP
ManufacturerMicrochip Technology
TC7116CPL datasheet
 


Specifications of TC7116CPL

Display TypeLCDConfiguration7 Segment
Digits Or CharactersA/D 3.5 DigitsCurrent - Supply800µA
Voltage - Supply9VOperating Temperature0°C ~ 70°C
Mounting TypeThrough HolePackage / Case40-DIP (0.600", 15.24mm)
Resolution (bits)3.5bitInput Channel TypeDifferential
Data InterfaceParallelSupply Voltage Range - Analogue9V
Supply Current800µANo. Of Pins40
Operating Temperature Range0°C ToDigital Ic Case StyleDIP
Rohs CompliantYesLead Free Status / RoHS StatusLead free / RoHS Compliant
Interface-  
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3-1/2 Digit Analog-to-Digital Converters with Hold
Features:
• Low Temperature Drift Internal Reference:
- TC7116/TC7117 80 ppm/°C, Typ.
- TC7116A/TC7117A 20 ppm/°C, Typ.
• Display Hold Function
• Directly Drives LCD or LED Display
• Zero Reading with Zero Input
• Low Noise for Stable Display:
- 2V or 200mV Full Scale Range (FSR)
• Auto-Zero Cycle Eliminates Need for Zero
• Adjustment Potentiometer
• True Polarity Indication for Precision Null
Applications
• Convenient 9V Battery Operation:
(TC7116/TC7116A)
• High-Impedance CMOS Differential Inputs: 10
• Low-Power Operation: 10mW
Applications:
• Thermometry
• Bridge Readouts: Strain Gauges, Load Cells,
Null Detectors
• Digital Meters: Voltage/Current/Ohms/Power, pH
• Digital Scales, Process Monitors
• Portable Instrumentation
Device Selection Table
Package Code
Package
Temperature Range
CPL
40-Pin PDIP
IJL
40-Pin CERDIP
-25°C to +85°C
CKW
44-Pin PQFP
CLW
44-Pin PLCC
© 2006 Microchip Technology Inc.
TC7116/A/TC7117/A
General Description:
The TC7116A/TC7117A are 3-1/2 digit CMOS Analog-
to-Digital Converters (ADCs) containing all the active
components necessary to construct a 0.05% resolution
measurement system. Seven-segment decoders,
polarity and digit drivers, voltage reference, and clock
circuit are integrated on-chip. The TC7116A drives
Liquid Crystal Displays (LCDs) and includes a back-
plane driver. The TC7117A drives common anode Light
Emitting Diode (LED) displays directly with an 8mA
drive current per segment.
These devices incorporate a display hold (HLDR)
function. The displayed reading remains indefinitely, as
long as HLDR is held high. Conversions continue, but
output data display latches are not updated. The refer-
ence low input (V
TC7106/7107. V
Ω
12
common in the TC7116A/7117A devices.
The TC7116A/7117A 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 1pA leakage current and a 10
ance. The 15μV
solid” reading. The auto-zero cycle ensures a zero
display reading with a 0V input.
The TC7116A and TC7117A feature a precision, low
drift internal reference, and are functionally identical to
the TC7116/TC7117. A low drift external reference is
not normally required with the TC7116A/TC7117A.
0°C to +70°C
0°C to +70°C
0°C to +70°C
-) is not available, as it is with the
REF
- is tied internally to analog
REF
12
Ω input imped-
noise performance enables a “rock
P-P
DS21457C-page 1

TC7116CPL Summary of contents

  • Page 1

    ... CERDIP -25°C to +85°C CKW 44-Pin PQFP CLW 44-Pin PLCC © 2006 Microchip Technology Inc. TC7116/A/TC7117/A General Description: The TC7116A/TC7117A are 3-1/2 digit CMOS Analog- to-Digital Converters (ADCs) containing all the active components necessary to construct a 0.05% resolution measurement system. Seven-segment decoders, polarity and digit drivers, voltage reference, and clock circuit are integrated on-chip ...

  • Page 2

    ... TC7116/A/TC7117/A Package Type 40-Pin PDIP HLDR 1 TC7116CPL TC7116ACPL 2 TC7117CPL TC7117ACPL 10 100 1000 POL (Minus Sign) (TC7116/7117) (TC7116A/TC7117A) 44-Pin PLCC TC7116CLW 12 NC TC7116ACLW TC7117CLW B2 13 TC7117ACLW Note internal connection. 2: Pins 9, 25, 40 and 56 are connected to the die substrate. The potential at these pins is approximately V+. No external connections should be made ...

  • Page 3

    ... Typical Application 1MΩ + Analog 0.01μF Input – 47kΩ 0.47μF 0.22μF © 2006 Microchip Technology Inc. TC7116/A/TC7117/A TC7116/A TC7117/A Display 0.1μF Hold LCD Display (TC7116/7116A) or Common Anode LED Display (TC7117/7117A) HLDR REF REF 31 Segment 2– 22–25 Drive ...

  • Page 4

    ... Counts μV/V — 50 — μV — 15 — — μV/°C — 0.2 1 μV/°C — 1.0 2 © 2006 Microchip Technology Inc. listed under “Absolute = 25°C, A Test Conditions Full Scale = 200mV REF V = 100mV REF + ≅ 200mV ≈ 2V Full Scale = 200mV ± ...

  • Page 5

    ... Average DC component is less than 50mV. 5: The TC7116/TC7116A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to TEST, Pin 37. The TC7117/TC7117A logic inputs have an internal pull-down resistor connected from HLDR, Pin 1 to GND, Pin 21. © 2006 Microchip Technology Inc. TC7116/A/TC7117/A Min ...

  • Page 6

    ... The analog HIGH input signal is connected to this pin. IN operation systems where the input signal is referenced to the power sup- ply. It also acts as a reference voltage source. See Section 3.1.6 “Analog Com- mon”, Analog Common for more details. - See Pin 34. © 2006 Microchip Technology Inc. ...

  • Page 7

    ... OSC3 39 6 OSC2 40 7 OSC1 © 2006 Microchip Technology Inc. TC7116/A/TC7117/A Description + A 0.1μF capacitor is used in most applications large Common mode voltage exists (for example, the V - pin is not at analog common), and a 200mV scale is IN used, a 1μF capacitor is recommended and will hold the rollover error to ...

  • Page 8

    ... REF BUFF Auto-Zero – Integrator + Low – Temp. + Drift Zener AZ – V REF + V+ - 3.1.4 REFERENCE The positive reference voltage (V analog common. + and can be tied to analog IN C INT V INT Digital Section Comparator TC7116 TC7116A TC7117 TC7117A +) is referred to REF © 2006 Microchip Technology Inc. ...

  • Page 9

    ... V + REF 1.2V REF COMMON FIGURE 3-2: Using an External Reference © 2006 Microchip Technology Inc. TC7116/A/TC7117/A Analog common is also used auto-zero and de-integrate different from ana- IN log common, a Common mode voltage exists in the system and is taken care of by the excellent CMRR of the converter ...

  • Page 10

    ... LCD Phase Driver 7-Segment 7-Segment Decode Decode Latch Thousands Hundreds Tens ~70kΩ ÷ 4 Logic Control V TH Internal Digital Ground 1 HLDR + are reversed, this indication can IN Backplane 21 7-Segment ÷ 200 Decode Units 35 V+ 6.2V 37 TEST = 1V 500Ω © 2006 Microchip Technology Inc. ...

  • Page 11

    ... OSC1 OSC2 OSC3 FIGURE 3-6: TC7117/TC7117A Digital Section © 2006 Microchip Technology Inc. TC7116/A/TC7117/A To achieve maximum rejection of 60Hz pickup, the sig- nal integrate cycle should be a multiple of 60Hz. Oscil- lator frequencies of 240kHz, 120kHz, 80kHz, 60kHz, 48kHz, 40kHz, etc. should be selected. For 50Hz rejec- tion, oscillator frequencies of 200kHz, 100kHz, 66-2/3kHz, 50kHz, 40kHz, etc ...

  • Page 12

    ... This offset reading can be conveniently gen- erated by connecting the voltage transducer between INT V + and analog common, and the variable (or fixed) IN offset voltage between analog common and V © 2006 Microchip Technology Inc Thus, for the 200mV REF ≠ 0. Tempera ...

  • Page 13

    ... Common mode range of the converter. 2. The signal is less than ±1.5V external reference is used. + REF LED Drive 32 COM TC7117 TC7117A GND + V- TC7660 10μ (-5V 10μF FIGURE 5-1: Negative Power Supply Generation with TC7660 © 2006 Microchip Technology Inc. TC7116/A/TC7117 – DS21457C-page 13 ...

  • Page 14

    ... TP1 3.50 4. 1.5W, 1/4Ω 1N4001 FIGURE 6-2: Package Power Dissipation In -5V +5V + – 1MΩ 150kΩ TP3 1kΩ 0.47 μF 0.22 0.01 μF μF Display 0.1 μF 47 kΩ TC7117 TC7117A 10 20 Display Diode or Resistor Limits © 2006 Microchip Technology Inc. ...

  • Page 15

    ... TC7116/TC7117A Using the Internal Reference (200 mV Full Scale, 3 Readings Per Second – RPS TC7117 30 TC7117A FIGURE 6-4: TC7117/TC7117A Internal Reference (200 mV Full Scale, 3 RPS, V Single Ended Inputs © 2006 Microchip Technology Inc. TC7116/A/TC7117/A Set V = 100mV REF 40 100kΩ 100pF 36 22kΩ 0.1pF 1kΩ 33 1MΩ 0.01μ 0.47μF – ...

  • Page 16

    ... CD4077 O/R = Over Range U/R = Under Range 40 100kΩ Set V = 100mV 39 REF 38 37 100pF 36 10kΩ 10kΩ 1kΩ 0.1pF 33 1. 0.01μF 1MΩ 30 0.47μF 29 47kΩ 0.22μ Display GND – - Tied to Common) IN © 2006 Microchip Technology Inc. ...

  • Page 17

    ... TC7116A TC7117 TC7117A FIGURE 6-7: Recommended Component Values for 2V Full Scale (TC7116/TC7116A and TC7117/ TC7117A) TC7117 TC7117A FIGURE 6-8: TC7117/TC7117A Operated From Single +5V Supply (An External Reference Must be Used in This Application) © 2006 Microchip Technology Inc. TC7116/A/TC7117/A Set REF 40 100kΩ 100pF 36 24kΩ ...

  • Page 18

    ... Suffix Device Carrier Width (W) Pitch (P) Part Per Full Reel User Direction of Feed Pin 1 P Standard Reel Component Orientation for 713 Suffix Device Carrier Width (W) Pitch (P) Part Per Full Reel Reel Size 500 Reel Size 500 13 in © 2006 Microchip Technology Inc. ...

  • Page 19

    ... Microchip Technology Inc. TC7116/A/TC7117/A Pin 1 .555 (14.10) .530 (13.46) .040 (1.02) .020 (0.51) .015 (0.38) .008 (0.20) .022 (0.56) ...

  • Page 20

    ... Max. .009 (0.23) .005 (0.13) .398 (10.10) .390 (9.90) .557 (14.15) .537 (13.65) .096 (2.45) Max. Dimensions: inches (mm) Reel Size 13 in Dimensions: inches (mm) .041 (1.03) .026 (0.65) .010 (0.25) Typ. .083 (2.10) .075 (1.90) © 2006 Microchip Technology Inc. ...

  • Page 21

    ... To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office PART CODE TC711X LCD } 7 = LED A or blank* R (reversed pins) or blank (CPL pkg only) * "A" parts have an improved reference TC Package Code (see Device Selection Table) © 2006 Microchip Technology Inc. TC7116/A/TC7117/A XXX . DS21457C-page 21 ...

  • Page 22

    ... TC7116/A/TC7117/A NOTES: DS21457C-page 22 © 2006 Microchip Technology Inc. ...

  • Page 23

    ... PowerMate, PowerTool, REAL ICE, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, 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 24

    ... 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 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...