component
ADC121C021CIMM
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), VSSOP-8-0.65mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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ADC121C021CIMM
Texas Instruments · Analog To Digital Converters (ADCs) · VSSOP-8-0.65mm
ADC121C021CIMM from Texas Instruments, in a VSSOP-8-0.65mm. 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 | SCL | input | Serial clock input used with SDA to control data transfer in and out of the device; open-drain line that must be pulled to VA with an external pull-up resistor. |
| 2 | ALERT | output | Open-drain alert output configurable as active high or active low, which must be pulled to the supply (VA) with an external pull-up resistor. |
| 3 | ADR0 | input | Tri-level address selection input that sets bits A0 and A1 of the 7-bit slave address. |
| 4 | VIN | power_in | Analog input that can range from GND to VA. |
| 5 | VA | power_in | Power supply and unbuffered reference voltage (+2.7V to +5.5V), which must be free of noise and decoupled to GND. |
| 6 | ADR1 | input | Tri-level address selection input that sets bits A2 and A3 of the 7-bit slave address. |
| 7 | GND | power_in | Ground for all on-chip circuitry. |
| 8 | SDA | bidirectional | Serial data bidirectional connection clocked into or out of the internal 16-bit register with SCL; open-drain line that must be pulled to VA with an external pull-up resistor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | ADC/DAC/Data Conversion |
| Pins | 8 |
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 | up to | 5 | |||
| Thermal Resistance Junction-to-Ambient, 8-Lead VSSOP | θJA | 200 | °C/W | 8-Lead VSSOP | 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 | |
| Signal-to-Noise Ratio | SNR | 70.4 | 72.5 | dB | VA = +2.7V to +3.6V | 6 | |
| Total Harmonic Distortion | THD | -92 | -78 | dB | VA = +2.7V to +3.6V | 6 | |
| Signal-to-Noise Plus Distortion Ratio | SINAD | 70 | 72.6 | dB | VA = +2.7V to +3.6V | 6 | |
| Spurious-Free Dynamic Range | SFDR | 76 | 90 | dB | VA = +2.7V to +3.6V | 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 Mode | IA | 0.41 | 0.59 | mA | VA = 2.7V to 3.6V | 7 | |
| Supply Current, Automatic Conversion Mode | IA | 0.78 | 1.2 | mA | VA = 4.5V to 5.5V | 7 | |
| Supply Current, Power Down Mode PD1 | IPD1 | 0.1 | 0.2 | µA | 2-wire interface stopped and quiet (SCL = SDA = VA) | 7 | |
| Power Consumption, Power Down Mode PD1 | PPD1 | 0.5 | 0.9 | µW | 2-wire interface stopped and quiet (SCL = SDA = VA) | 7 | |
| Supply Current, Power Down Mode PD2 | IPD2 | 13 | 45 | µA | VA = 2.7V to 3.6V, fSCL=400kHz | 7 | |
| Supply Current, Power Down Mode PD2 | IPD2 | 27 | 80 | µA | VA = 4.5V to 5.5V, fSCL=400kHz | 7 | |
| Supply Current, Power Down Mode PD2 | IPD2 | 89 | 150 | µA | VA = 2.7V to 3.6V, fSCL=3.4MHz | 7 | |
| Supply Current, Power Down Mode PD2 | IPD2 | 168 | 250 | µA | VA = 4.5V to 5.5V, fSCL=3.4MHz | 7 | |
| Serial Clock Frequency | fSCL | 400 | kHz | Fast Mode | 8 | ||
| Serial Clock Frequency | fSCL | 3.4 | MHz | High Speed Mode, Cb = 100pF | 8 | ||
| Conversion Time | 1 | µs | 8 | ||||
| Conversion Rate | fCONV | 188.9 | ksps | fSCL = 3.4MHz | 8 | ||
| Input Capacitance | CINA | 30 | pF | Track Mode | 6 | ||
| Input Capacitance | CINA | 3 | pF | Hold Mode | 6 |
CAD (KiCad official)
- Symbol:
ADC121C021CIMM - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files:
adc121c021cimm-etched.step/adc121c021cimm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adc121c021cimm.step/adc121c021cimm.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 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).