TC14433EPG Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
Microchip TC14433EPG is a 3.5-digit dual-slope integrating ADC designed for high-accuracy DC voltage measurement. It accepts analog input voltages up to 0.2 V with 0.05% linearity error and operates from dual ±5 V supplies. Housed in a 24-pin PDIP package, it suits digital panel meters, handheld multimeters, and precision measurement instruments.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 24
- Lifecycle
- OBSOLETE
- Datasheet
- TC14433EPG Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $5.5000(MOQ 120)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.5-digit dual-slope integrating ADC for high-noise-rejection DC measurement
- 0.05% maximum linearity error for precision voltage readings
- 1-channel analog input with up to 0.2 V full-scale range
- Dual supply operation: +5 V and -5 V for bipolar input handling
- 24-pin PDIP package for straightforward through-hole integration
- Lead-free and RoHS compliant (JESD-609 e3)
Applications
The TC14433EPG is used as the core ADC in digital panel meters, benchtop multimeters, and precision DC measurement instruments where dual-slope integration provides high noise immunity and accurate readings. Its 3.5-digit resolution and low linearity error make it a reliable choice for calibrated industrial measurement equipment and laboratory instruments requiring stable, repeatable voltage readings.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog Input Voltage-Max | 0.2V |
| Converter Type | ADC, DUAL-SLOPE |
| JESD-30 Code | R-PDIP-T24 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 0.05% |
| Negative Supply Voltage-Nom | -5 V |
| Number of Analog In Channels | 1 |
| Number of Bits | 3 |
| Number of Functions | 1 |
| Output Bit Code | BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP24,.6 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the full-scale analog input range of the TC14433EPG, and does it require signal conditioning for typical panel meter inputs?
The TC14433EPG has an analog input voltage maximum of 0.2 V full scale. For typical panel meter designs measuring 2 V, 20 V, or 200 V DC ranges, an external resistive voltage divider or precision input attenuator is required to scale the measured signal down to within 0.2 V before the ADC input, which is standard practice in 3.5-digit meter designs.
How does the dual-slope integration method used in the TC14433EPG help reject power-line noise in industrial environments?
Dual-slope integration averages the input over a fixed conversion period, which can be set to a multiple of the 50 Hz or 60 Hz power-line period (20 ms or 16.7 ms). This integration window causes the 50 Hz and 60 Hz noise components to integrate to zero, providing superior common-mode and differential noise rejection compared to successive-approximation ADCs in noisy industrial environments.
What supply voltages does the TC14433EPG require, and how does this affect power supply design in battery-powered meters?
The TC14433EPG requires a dual supply of +5 V and -5 V for normal operation. In battery-powered handheld instruments, a charge pump or inverting DC-DC converter is typically needed to generate the -5 V rail from a single battery pack, adding circuit complexity compared to modern single-supply ADC alternatives.
Is the TC14433EPG still available for legacy instrument repair, and what is its lifecycle status?
The TC14433EPG is available with a lead-free JESD-609 e3 designation and is stocked by distributors for legacy repair and new design use. However, the YTEOL field indicates an end-of-life timeline of 0 years, suggesting procurement teams should verify current availability and consider sourcing sufficient lifetime buy quantities for instruments in long-term production.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 120+ | $5.5000 | $660.00 |
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