Specifications
| Type | Description |
|---|---|
| Part Number | LDC2114 |
| Manufacturer | Texas Instruments |
| Product Type | Inductive touch sensor converter |
| Category | Sensors |
| Package / Case | 16-pin DSBGA 1.6 mm x 1.6 mm; 16-pin TSSOP 5.0 mm x 4.4 mm |
| Number of sensing channels | 4; condition: LDC2114 |
| Touch detection deflection sensitivity | <200 nm; condition: Conductive target material deflection |
| Operating supply voltage | 1.8 V +/-5%; condition: Specified operating voltage range |
| Recommended supply voltage | 1.71-1.89 V, 1.8 V nominal; condition: Over operating temperature range |
| Operating junction temperature | -40 to +85 °C; condition: Recommended operating conditions |
| Absolute maximum supply voltage | 2.2 V max; condition: Over operating temperature range |
| Absolute maximum SCL/SDA voltage | -0.3 to 3.6 V; condition: Voltage on SCL, SDA |
| Absolute maximum voltage on other pins | -0.3 to 2.2 V; condition: Any pin except SCL/SDA; max voltage across any two pins not including SCL/SDA is VDD + 0.3 V |
| Storage temperature | -65 to +125 °C; condition: Absolute maximum rating |
| HBM ESD rating | +/-1000 V; condition: ANSI/ESDA/JEDEC JS-001 |
| CDM ESD rating | +/-250 V; condition: JEDEC JESD22-C101 |
| Normal power supply current | 0.49 mA typ; condition: 4 channels, 40 SPS per channel, 1 ms sampling window per channel, LPWRB=VDD; LDC2114 only |
| Normal power supply current | 0.26 mA typ; condition: 2 channels, 40 SPS per channel, 1 ms sampling window per channel, LPWRB=VDD |
| Low power supply current | 9 µA typ; condition: 1 channel, 1.25 SPS per channel, 1 ms sampling window per channel, LPWRB=Ground |
| Standby supply current | 5 µA typ, 7 µA max; condition: No button active, EN=0x00 |
| Sensor maximum current drive | 2.5 mA max; condition: SENSORn_CONFIG register RPn=0 |
| Sensor parallel resonant impedance | 350 Ω min, 10 kΩ max; condition: Sensor RP range |
| Sensor resonant frequency | 1-30 MHz; condition: LC sensor input |
| Sensor quality factor | 5 min, 30 max; condition: QSENSOR operating range |
| Sensor oscillation peak-to-peak voltage | 0.9 V typ; condition: Measured on INn pins with reference to COM |
| Sensor input pin capacitance | 17 pF typ; condition: INn sensor input pins |
| Normal power scan rate | 7 SPS min, 10 SPS typ, 13 SPS max; condition: Minimum normal power mode scan rate, LPWRB=VDD |
| Normal power scan rate | 56 SPS min, 80 SPS typ, 104 SPS max; condition: Maximum normal power mode scan rate, LPWRB=VDD |
| Low power scan rate | 0.438 SPS min, 0.625 SPS typ, 0.813 SPS max; condition: Minimum low power mode scan rate, LPWRB=Ground |
| Low power scan rate | 3.5 SPS min, 5 SPS typ, 6.5 SPS max; condition: Maximum low power mode scan rate, LPWRB=Ground |
| Converter resolution | 12 bits; condition: Data code width |
| Digital input high voltage | 0.8 x VDD min; condition: Pins LPWRB, INTB, OUT0, OUT1, OUT2, OUT3, ADDR |
| Digital input low voltage | 0.2 x VDD max; condition: Pins LPWRB, INTB, OUT0, OUT1, OUT2, OUT3, ADDR |
| Digital output high voltage | 0.8 x VDD min; condition: ISOURCE=400 µA |
| Digital output low voltage | 0.2 x VDD max; condition: ISINK=400 µA |
| Digital input leakage current | -500 to +500 nA; condition: Digital interface pins |
| I2C clock frequency | 400 kHz max; condition: I2C interface |
| I2C address | 0x2A; condition: LDC2114 SDA pin description |
| I2C input high voltage | 0.7 x VDD min; condition: I2C SCL/SDA |
| I2C input low voltage | 0.3 x VDD max; condition: I2C SCL/SDA |
| I2C output low voltage | 0.2 x VDD max; condition: 3 mA sink current |
| I2C data setup time | 100 ns min; condition: tSU;DAT |
| I2C clock low time | 1.3 µs min; condition: tLOW |
| I2C clock high time | 0.6 µs min; condition: tHIGH |
| Datasheet Status | request_only |
Product Overview
The Texas Instruments LDC2114 is an inductive touch sensor converter in the Sensor category. It provides 4 sensing channels and supports conductive target material deflection sensitivity below 200 nm. The converter resolution is 12 bits, and the LC sensor input operates across a 1-30 MHz resonant frequency range with a sensor quality factor range from 5 to 30.
Key Features
- 4 sensing channels for LDC2114 inductive touch inputs
- Conductive target deflection sensitivity below 200 nm
- 1.8 V +/-5% specified operating supply voltage
- Recommended 1.71-1.89 V supply over temperature
- -40 to +85 °C operating junction temperature
- 12-bit converter data code width
- LC sensor resonant frequency range of 1-30 MHz
- 400 kHz maximum I2C clock frequency
- I2C address specified as 0x2A
- Standby supply current of 5 µA typical
Typical Applications
- Inductive touch button interfaces
- Conductive target deflection sensing
- Four-channel touch sensor inputs
- Low-power touch scan systems
- I2C-configured touch controls
Procurement Notes
When requesting a quote for LDC2114, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
How many sensing channels does the LDC2114 provide?
The LDC2114 provides 4 sensing channels. The extracted datasheet facts identify the device as an inductive touch sensor converter and specify the 4-channel configuration for the LDC2114.
What supply voltage range is recommended for LDC2114 operation?
The recommended supply voltage is 1.71-1.89 V with 1.8 V nominal over the operating temperature range. The specified operating supply voltage is 1.8 V +/-5%.
What I2C interface limits are specified for the LDC2114?
The I2C interface supports a 400 kHz maximum clock frequency and address 0x2A. I2C thresholds are 0.7 x VDD minimum high input and 0.3 x VDD maximum low input.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 28, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.