Overview
The ADC121S051CIMFX is a low-power, single-channel CMOS 12-bit analog-to-digital converter (ADC) produced by Texas Instruments. This device is distinguished by its high-speed serial interface and is fully specified over a sample rate range of 200 ksps to 500 ksps. The ADC121S051 operates on a single power supply that can range from +2.7V to +5.25V and features variable power management, including a power-down mode that significantly reduces power consumption.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 Bits | |
| Sample Rate | 200 ksps to 500 ksps | |
| Supply Voltage | +2.7V to +5.25V | |
| Power Consumption (Normal Mode) | 1.7 mW (@3.6V), 8.7 mW (@5.25V) | |
| Power Consumption (Power-Down Mode) | 2.6 µW (@5.25V) | |
| Integral Non-Linearity (INL) | +0.45/-0.40 LSB (typ) | |
| Differential Non-Linearity (DNL) | +0.5/-0.25 LSB (typ) | |
| Signal-to-Noise Ratio (SNR) | 72.0 dB (typ) | |
| Total Harmonic Distortion (THD) | -83 dB | |
| Input Range | 0 to VA V | |
| Operating Temperature Range | -40°C to +85°C | |
| Package Types | 6-lead WSON and SOT-23 |
Key Features
- Specified over a range of sample rates (200 ksps to 500 ksps)
- 6-lead WSON and SOT-23 packages
- Variable power management
- Single power supply with a range of +2.7V to +5.25V
- SPI™/QSPI™/MICROWIRE/DSP compatible serial interface
- Low power consumption with power-down feature
- Internal track-and-hold circuit
- Successive-approximation register architecture
Applications
- Portable systems
- Remote data acquisition
- Instrumentation and control systems
Q & A
- What is the resolution of the ADC121S051? The ADC121S051 has a resolution of 12 bits.
- What is the sample rate range of the ADC121S051? The sample rate range is from 200 ksps to 500 ksps.
- What are the package options for the ADC121S051? The ADC121S051 is available in 6-lead WSON and SOT-23 packages.
- What is the operating voltage range of the ADC121S051? The operating voltage range is from +2.7V to +5.25V.
- Is the ADC121S051 compatible with SPI, QSPI, and MICROWIRE interfaces? Yes, the ADC121S051 is compatible with SPI™, QSPI™, MICROWIRE, and many common DSP serial interfaces.
- What is the power consumption of the ADC121S051 in normal mode? The power consumption is 1.7 mW at +3.6V and 8.7 mW at +5.25V.
- How low can the power consumption go in power-down mode? The power consumption can be as low as 2.6 µW in power-down mode using a +5.25V supply.
- What is the operating temperature range of the ADC121S051? The operating temperature range is from -40°C to +85°C.
- What type of architecture does the ADC121S051 use? The ADC121S051 uses a successive-approximation register architecture with an internal track-and-hold circuit.
- What are some typical applications of the ADC121S051? Typical applications include portable systems, remote data acquisition, and instrumentation and control systems.
