ADC121S021CISDX vs ADC121S051CISDX Comparison
Detailed side-by-side comparison of ADC121S021CISDX by Texas Instruments and ADC121S051CISDX by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
ADC121S021CISDX - 12-Bit 50-200ksps SAR ADC | Texas Instruments
ADC121S021CISDX ObsoleteTexas Instruments
ADC121S051CISDX - 12-Bit 200-500ksps Differential Input ADC | Texas Instruments
ADC121S051CISDX ✓ ActiveSpecification Comparison
| Parameter | ADC121S021CISDX | ADC121S051CISDX |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | ADC/DAC | ADC/DAC |
| Lifecycle Status | Obsolete | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.85 | $1.55 |
| Resolution | 12 bit | 12 bits |
| Number of Channels | 1 | 1 (single-ended or differential input) |
| Converter Type | SAR (Successive Approximation Register) | — |
| Sample Rate Range | 50 ksps to 200 ksps | 200 ksps to 500 ksps |
| Supply Voltage (V_A) | 2.7 V to 5.25 V | — |
| Supply Current (200 ksps, 3 V) | 1.4 mW typical | — |
| Analog Input Type | Single-ended (pseudo-differential) | — |
| Input Voltage Range | 0 V to V_REF | 0 V to VA (full-scale) |
| Reference Voltage | V_REF (external) or V_A | — |
| INL (max) | ±1 LSB | — |
| DNL (max) | +1.5 / -1 LSB | — |
| SINAD | 72 dB typical at 200 ksps | — |
| Serial Interface | SPI / QSPI / MICROWIRE-compatible (3-wire: CS, SCLK, DOUT) | — |
| SCLK Frequency (max) | 20 MHz | — |
| Package | 6-pin WSON (2.2 x 2.5 mm) with exposed thermal pad | 6-pin LLP/WSON (2.2 x 2.5 mm) with exposed pad |
| Operating Temperature | -40C to +85C (industrial) | — |
| Power-Down Current | Microampere-level (see datasheet) | — |
| RoHS Status | Compliant (/NOPB variant) | Compliant (lead-free) |
| Manufacturer | — | Texas Instruments |
| Part Family | — | ADC121S051 (pin-compatible ADC121Sxx1 series) |
| Architecture | — | SAR (Successive Approximation Register) |
| Input Type | — | Differential (pseudo-differential capable) |
| Supply Voltage (VA) | — | +2.7 V to +5.25 V (single supply) |
| Power Consumption at 3.6 V | — | 1.7 mW (typical) |
| Power Consumption at 5.25 V | — | 8.7 mW (typical) |
| Digital Interface | — | SPI, QSPI, MICROWIRE, DSP-compatible serial |
| Output Format | — | Straight binary (MSB-first) |
| Operating Temperature Range | — | -40 C to +85 C (industrial) |
| Mounting Type | — | Surface Mount |
| MSL Level | — | 1 (per data) |
| Linearity Error (INL) | — | [DATA_NEEDED: INL LSB value] |
| Screening Level | — | Industrial |