component
ADC121C021QIMK
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), TSOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownADC121C021QIMK
Texas Instruments · Analog To Digital Converters (ADCs) · TSOT-23-6
ADC121C021QIMK from Texas Instruments, in a TSOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VA | power_in | Power supply and unbuffered reference voltage that must be free of noise and decoupled to GND, operating from +2.7V to +5.5V. |
| 2 | GND | power_in | Ground for all on-chip circuitry. |
| 3 | VIN | power_in | Analog input that can range from GND to VA. |
| 4 | ALERT | output | Open-drain alert output that can be configured as active high or active low and must be pulled up to VA with an external resistor. |
| 5 | SCL | input | I2C serial clock input used together with SDA to control data transfer, an open-drain line that must be pulled up to VA with an external resistor. |
| 6 | SDA | bidirectional | I2C serial data bi-directional connection clocked into or out of the internal 16-bit register with SCL, an open-drain line that must be pulled up to VA with an external resistor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-6 |
| Category | Data Converters |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VA | -0.3 | 6.5 | V | 4 | ||
| Voltage on any Digital Input Pin to GND | -0.3 | 6.5 | V | 4 | |||
| Input Current at Any Pin | -15 | 15 | mA | 4 | |||
| Package Input Current | -20 | 20 | mA | 4 | |||
| Junction Temperature | TJ | 150 | °C | 4 | |||
| Storage Temperature | -65 | 150 | °C | 4 | |||
| Operating Temperature Range | TA | -40 | 105 | °C | 5 | ||
| Supply Voltage | VA | 2.7 | 5.5 | V | 5 | ||
| Digital Input Voltage | 0 | 5.5 | V | 5 | |||
| Sample Rate | 188.9 | ksps | 5 | ||||
| Thermal Resistance, 6-Lead SOT | θJA | 250 | °C/W | 5 | |||
| Integral Non-Linearity | INL | -1 | 1 | LSB | VA = +2.7V to +3.6V, fSCL up to 400kHz | 5 | |
| Differential Non-Linearity | DNL | -0.9 | 1 | LSB | VA = +2.7V to +3.6V, fSCL up to 400kHz | 5 | |
| Offset Error | VOFF | -1.6 | 0.1 | 1.6 | LSB | VA = +2.7V to +3.6V, fSCL up to 400kHz | 5 |
| Gain Error | GE | -6 | -0.8 | 6 | LSB | 5 | |
| Effective Number of Bits | ENOB | 11.3 | 11.7 | Bits | VA = +2.7V to +3.6V | 6 | |
| Effective Number of Bits | ENOB | 11.5 | Bits | VA = +3.6V to +5.5V | 6 | ||
| Signal-to-Noise Ratio | SNR | 70.4 | 72.5 | dB | VA = +2.7V to +3.6V | 6 | |
| Signal-to-Noise Ratio | SNR | 71 | dB | VA = +3.6V to +5.5V | 6 | ||
| Total Harmonic Distortion | THD | -92 | -78 | dB | VA = +2.7V to +3.6V | 6 | |
| Total Harmonic Distortion | THD | -87 | dB | VA = +3.6V to +5.5V | 6 | ||
| Signal-to-Noise Plus Distortion Ratio | SINAD | 70 | 72.6 | dB | VA = +2.7V to +3.6V | 6 | |
| Signal-to-Noise Plus Distortion Ratio | SINAD | 71 | dB | VA = +3.6V to +5.5V | 6 | ||
| Spurious-Free Dynamic Range | SFDR | 76 | 90 | dB | VA = +2.7V to +3.6V | 6 | |
| Spurious-Free Dynamic Range | SFDR | 87 | dB | VA = +3.6V to +5.5V | 6 | ||
| DC Leakage Current | IDCL | -1 | 1 | µA | 6 | ||
| Serial Input Current | IIN | -1 | 1 | µA | SCL, SDA | 6 | |
| Address Input Low Voltage | VIL | 0.5 | V | ADDR | 6 | ||
| Address Input Current | IIN | -1 | 1 | µA | ADDR | 6 | |
| Output Low Voltage | VOL | 0.4 | V | ISINK = 3 mA | 6 | ||
| Output Low Voltage | VOL | 0.6 | V | ISINK = 6 mA | 6 | ||
| High Impedance Output Leakage Current | IOZ | -1 | 1 | µA | 6 | ||
| Supply Voltage Minimum | VA | 2.7 | V | 7 | |||
| Supply Voltage Maximum | VA | 5.5 | V | 7 | |||
| Supply Current, Continuous Operation | IN | 0.08 | 0.14 | mA | VA = 2.7V to 3.6V, fSCL=400kHz | 7 | |
| Supply Current, Continuous Operation | IN | 0.16 | 0.3 | mA | VA = 4.5V to 5.5V, fSCL=400kHz | 7 | |
| Supply Current, Continuous Operation | IN | 0.37 | 0.55 | mA | VA = 2.7V to 3.6V, fSCL=3.4MHz | 7 | |
| Supply Current, Continuous Operation | IN | 0.74 | 0.99 | mA | VA = 4.5V to 5.5V, fSCL=3.4MHz | 7 | |
| Supply Current, Automatic Conversion | IA | 0.41 | 0.59 | mA | VA = 2.7V to 3.6V | 7 | |
| Supply Current, Automatic Conversion | IA | 0.78 | 1.2 | mA | VA = 4.5V to 5.5V | 7 | |
| Supply Current, Power Down PD1 | IPD1 | 0.1 | 0.2 | µA | 7 | ||
| Power Consumption, Power Down PD1 | PPD1 | 0.5 | 0.9 | µW | 7 | ||
| Supply Current, Power Down PD2 | IPD2 | 13 | 45 | µA | VA = 2.7V to 3.6V, fSCL=400kHz | 7 | |
| Supply Current, Power Down PD2 | IPD2 | 27 | 80 | µA | VA = 4.5V to 5.5V, fSCL=400kHz | 7 | |
| Supply Current, Power Down PD2 | IPD2 | 89 | 150 | µA | VA = 2.7V to 3.6V, fSCL=3.4MHz | 7 | |
| Supply Current, Power Down PD2 | IPD2 | 168 | 250 | µA | VA = 4.5V to 5.5V, fSCL=3.4MHz | 7 | |
| Serial Clock Frequency | fSCL | 100 | kHz | Standard Mode | 8 | ||
| Serial Clock Frequency | fSCL | 400 | kHz | Fast Mode | 8 | ||
| Serial Clock Frequency | fSCL | 3.4 | MHz | High Speed Mode, Cb = 100pF | 8 | ||
| Serial Clock Frequency | fSCL | 1.7 | MHz | High Speed Mode, Cb = 400pF | 8 | ||
| SCL Low Time | tLOW | 4.7 | us | Standard Mode | 8 | ||
| SCL Low Time | tLOW | 1.3 | us | Fast Mode | 8 | ||
| SCL High Time | tHIGH | 4 | us | Standard Mode | 8 | ||
| SCL High Time | tHIGH | 0.6 | us | Fast Mode | 8 | ||
| Data Setup Time | tSU;DAT | 250 | ns | Standard Mode | 8 | ||
| Data Setup Time | tSU;DAT | 100 | ns | Fast Mode | 8 | ||
| Data Setup Time | tSU;DAT | 10 | ns | High Speed Mode | 8 | ||
| Capacitive load for each bus line | Cb | 400 | pF | 9 | |||
| Conversion Time | 1 | µs | 8 |
CAD (KiCad official)
- Symbol:
ADC121C021QIMK - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
adc121c021qimk-etched.step/adc121c021qimk-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adc121c021qimk.step/adc121c021qimk.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (47 pp, sha256
f464ed23e391a581, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).