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Overview
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Development Resources
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Application
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Ordering Detail
Overview
TPA8801B is a high sensitivity current input interface, which can covert the pA to nA range current signal to 5V range output.
TPA8801B use one resister to set the transduce gain, can provide ideal 4.56GΩ current to voltage DC gain when the resister is 20KΩ. As the output is saturated in the real application by offset voltage of internal amplifier, AC coupled mode is used to remove DC offset voltage and bias current impaction, so the real AC gain in the application is less than ideal DC gain depend on the capacitor values.
The internal precision amplifier has 1pA input bias current is good to transduce down to 100pA signal, 0.4mV offset voltage to expand the input range for DC signal, 1.3MHz GBW to meet the requirement of AC signal which is used in some type of dust sensor application.
TPA8801B is specified for operation over the -40°C to 125°C range.
TPA8801B is available in 5mm*6mm 14-lead TSSOP package. TPA8801B possibly in 3mm*2mm 14-lead DFN package, 1/5 size versus TSSOP-14 package, to meet the size limitation application, the sample can be provided in one month.
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Status
Production
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Rating
Industrial
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Feature
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VDD (V)
2.1~5.5
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Description
high sensitivity current input interface
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Package
TSSOP14
Development Resources
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Documentation
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Show FilterHidden FilterDocumentation
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Data Sheet
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Selection Guide
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Application Note
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Technical Note
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Technical Reference Manual
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Product Brief
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Solution Reference Manual
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User Guide
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Quick Start Guide
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Errata
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Test Report
- Document Name
- Type
- Language
- Date
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Data SheetEnglish08/29/2024
High Sensitivity Current Input Interface
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Technical NoteEnglish01/19/2024
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Technical NoteEnglish01/19/2024
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Selection GuideEnglish01/19/2024
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Application
• Dust sensor for air quality monitoring (PM2.5, PM10)
• Photodiode interface
• Sensor interface for current output senso
Ordering Detail
| Order Part Number | Buy | Rating | Feature | Status | 1ku Price | Release Date | Package | Lead time(week) | MSL | Packing | MPQ | CPQ |
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| TPA8801B-TR | Industrial Grade | / | Production | $0.436 | 2016-04-01 | TSSOP14 | 8 | MSL3 | T&R | 3000 | 15000 |
