KTH3110
Manufacturer: CONNTEK
The KTH3110 is a high-sensitivity member of the KTH31XX family: 6.60 mV/Gs at 3.3 V with a ±210 Gs full span. High gain means a small magnet at a comfortable air gap still produces a usable swing, which helps in compact assemblies and in field measurement where the source is weak. Output noise rises with gain to 7.2 mVrms, so average the reading when the measurement band allows it.
Overview
The KTH3110 is a high-sensitivity linear Hall sensor from CONNTEK with 6.60 mV/Gs at 3.3 V and 10.00 mV/Gs at 5 V, giving a field span of roughly ±210 Gs. The higher gain lets the design work with a smaller magnet or a wider air gap than the mid-range parts in the family allow.
Like the rest of the KTH31xx line the output is a ratiometric analog voltage resting at VDD/2 with no applied field, and the supply range is 3.0 – 5.5 V at about 4.5 mA consumption at 3.3 V. Operation is specified from -40 to +125 °C, and the device is available in SOT-23, TO-92S and DFN1616 packages.
Key features
- High gain with a ±210 Gs span — works with a small magnet or a wide air gap
- Ratiometric analog output, quiescent at VDD / 2
- 30 kHz bandwidth leaves room for digital averaging
- 3.0 – 5.5 V supply, −40 to +125 °C operating range
- SOT-23, TO-92S and DFN1616 package options
- 10.0 mV/Gs at 5 V for 5 V analog rails
Typical applications
- Position sensing through a wide or plastic-housed air gap
- Magnetic field strength measurement with weak sources
- Proximity and travel detection in compact assemblies
- Low-current measurement with a flux concentrator
Specifications
Magnetic performance
| Sensitivity @ 3.3 V | 6.60 mV/Gs typ (6.14 – 7.06) |
|---|---|
| Sensitivity @ 5 V | 10.0 mV/Gs typ (9.30 – 10.7) |
| Magnetic range @ 3.3 V | ±210 Gs |
| Magnetic range @ 5 V | ±225 Gs |
| Output noise @ 3.3 V | 7.2 mVrms typ |
| Sensitivity drift | 0.1 %/°C typ |
| Linearity error | ±1.5 % |
Electrical
| Supply voltage | 3.0 – 5.5 V |
|---|---|
| Quiescent output | VDD / 2 (1.65 V at 3.3 V, 2.50 V at 5 V) |
| Output linear range | 0.25 V to VDD − 0.25 V |
| Supply current | 4.5 mA typ @ 3.3 V, 5.4 mA typ @ 5 V |
| Bandwidth | 30 kHz (−3 dB) |
| Power-on time | 20 µs typ |
| Load capacitance | ≤ 10 nF |
Package and temperature
| Packages | SOT-23, TO-92S, DFN1616 |
|---|---|
| Pins | VDD / OUT / GND |
| Operating temperature | -40 – +125 °C |
Family sensitivity options
| KTH3101 | 1.00 mV/Gs @ 3.3 V · ±1400 Gs |
|---|---|
| KTH3102 | 1.65 mV/Gs @ 3.3 V · ±840 Gs |
| KTH3103 | 2.25 mV/Gs @ 3.3 V · ±620 Gs |
| KTH3105 | 3.30 mV/Gs @ 3.3 V · ±420 Gs |
| KTH3110 | 6.60 mV/Gs @ 3.3 V · ±210 Gs |
| KTH3113 | 8.90 mV/Gs @ 3.3 V · ±150 Gs |
Note on parameters. The figures above are taken from the manufacturer datasheet for KTH3110. Electrical limits vary by ordering option and revision — confirm the current datasheet before finalising your design.
Package and ordering
| Ordering code | Package | Operating temp. / grade |
|---|---|---|
| KTH3110 | SOT-23 / TO-92S / DFN1616 | -40 to +125 °C |
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Sourcing KTH3110
We supply KTH3110 with original manufacturer documentation and a quotation that states lead time, packaging and price breaks. Send your annual quantity and target date and you will get a reply with the datasheet attached.