ADC121S021CISD Texas Instruments Integrated Circuit (Other) In Stock
ADC121S021CISD is a 12-bit successive approximation ADC with single analog input channel and SPI-compatible interface. Features low power consumption, 200 ksps throughput, and 5V single-supply operation. From $1.59 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- ADC121S021CISD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5975(MOQ 2000)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ADC121S021CISD?
- 12-bit resolution with ±0.5 LSB INL for high-accuracy analog-to-digital conversion
- Single-channel successive approximation ADC with SPI-compatible 3-wire serial interface
- Wide supply voltage range 2.7V to 5.25V with low power shutdown mode
- Compact SOT-23-6 package ideal for space-constrained portable and industrial designs
- 200 ksps maximum throughput suitable for audio and sensor signal acquisition
What is ADC121S021CISD used for?
The ADC121S021CISD is widely used in portable instrumentation, industrial sensors, and data acquisition systems requiring accurate 12-bit analog-to-digital conversion. Its low power consumption and small SOT-23-6 footprint make it ideal for battery-powered medical devices and handheld test equipment. It also serves well in motor control feedback loops, temperature monitoring circuits, and consumer electronics where a single-channel SPI ADC simplifies system design.
What are the specifications of ADC121S021CISD?
| Pbfree Code | No |
| YTEOL | 0 |
| Analog Input Voltage-Max | 5.25V |
| Converter Type | ADC, SUCCESSIVE APPROXIMATION |
| JESD-30 Code | R-PDSO-N6 |
| JESD-609 Code | e0 |
| Linearity Error-Max (EL) | 0.0244% |
| Number of Analog In Channels | 1 |
| Number of Bits | 12 |
| Number of Functions | 1 |
| Output Bit Code | BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC6,.1,25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 0.2MHz |
| Sample and Hold / Track and Hold | TRACK |
| Screening Level | TS 16949 |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.30 |
Where can I find the ADC121S021CISD datasheet?
ADC121S021CISD Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for ADC121S021CISD?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the resolution and sampling rate of the ADC121S021CISD?
The ADC121S021CISD provides 12-bit resolution with a maximum sampling rate of 200 ksps (kilo-samples per second). It achieves a maximum integral nonlinearity (INL) of ±0.5 LSB and differential nonlinearity (DNL) of ±0.5 LSB, making it suitable for precision measurement applications.
What interface does the ADC121S021CISD use and which microcontrollers is it compatible with?
The ADC121S021CISD uses a 3-wire SPI-compatible serial interface (SCLK, CS, DOUT) operating up to 10 MHz. It is compatible with virtually all modern microcontrollers including Arduino, STM32, PIC, and MSP430 families that support SPI communication, requiring only three digital I/O pins for complete operation.
What is the supply voltage range and power consumption of the ADC121S021CISD?
The ADC121S021CISD operates from a single supply voltage of 2.7V to 5.25V. Normal operating current is typically 1 mA at 3V supply, and the device features an automatic power-down mode between conversions, reducing average power consumption significantly in low-speed applications.
What package does the ADC121S021CISD come in and what are common alternatives?
The ADC121S021CISD is available in a compact 6-pin SOT-23 (R-PDSO-N6) surface-mount package, ideal for space-constrained PCB designs. Common alternatives from Texas Instruments include the ADC121S051 (500 ksps), ADC121S101 (1 Msps), and the multi-channel ADS7924 for applications requiring higher speed or additional input channels.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2000+ | $1.6410 | $3282.06 |
| 3000+ | $1.6204 | $4861.14 |
| 5000+ | $1.5975 | $7987.45 |
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