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
What are the key features of TC14433EPG?
- 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)
What is TC14433EPG used for?
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.
What are the specifications of TC14433EPG?
| 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 |
Where can I find the TC14433EPG datasheet?
TC14433EPG Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for TC14433EPG?
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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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 120+ | $5.5000 | $660.00 |
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