Overview
The ADC121S625CIMM/NOPB is a 12-bit, high-performance analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for applications requiring high accuracy, low power consumption, and compact packaging. The ADC121S625 features a successive approximation register (SAR) architecture with an inherent sample/hold function, enabling it to convert analog signals at sample rates up to 200 ksps while maintaining low power consumption.
Key Specifications
| Parameter | Description | Typical | Limits |
|---|---|---|---|
| Resolution | Number of bits | 12 bits | - |
| Conversion Rate | Sample rate range | 50 ksps to 200 ksps | - |
| Input Type | Analog input configuration | True Differential Inputs | - |
| Reference Voltage Range | External reference voltage range | 100 mV to 2.5 V | - |
| Integral Non-Linearity (INL) | Deviation from ideal line | ±1 LSB (max) | - |
| Differential Non-Linearity (DNL) | Deviation between consecutive codes | ±0.75 LSB (max) | - |
| Offset Error | Difference from ideal offset | 0.4 LSB (typ) | ±4 LSB (max) |
| Gain Error | Difference in full-scale errors | 0.05 LSB (typ) | - |
| Common Mode Rejection Ratio (CMRR) | Rejection of common-mode signals | 82 dB (typ) | - |
| Power Consumption | Active and power-down modes | 2.25 mW (typ) at 200 ksps, 60 nW (typ) in power-down | - |
| Operating Temperature Range | Industrial temperature range | -40°C to +85°C | - |
| Package | Physical package type | VSSOP-8 | - |
Key Features
- True Differential Inputs: High impedance analog inputs with true differential configuration.
- External Reference: Supports an external reference voltage between 100 mV and 2.5 V.
- Low Power Consumption: Active power consumption of 2.25 mW at 200 ksps and as low as 60 nW in power-down mode.
- High AC Common-Mode Rejection: CMRR of 82 dB for effective rejection of common-mode signals.
- SPI/QSPI/MICROWIRE/DSP Compatible: Serial interface compatible with various standards.
- Small Package: Available in the compact VSSOP-8 package.
- Automatic Power Down: Reduces power consumption significantly when not in use.
Applications
- Automotive Navigation: Suitable for navigation systems in vehicles due to its high accuracy and low power consumption.
- Portable Systems: Ideal for battery-operated devices requiring efficient power management.
- Medical Instruments: Used in medical devices where precision and low power are critical.
- Instrumentation and Control Systems: Applicable in various industrial control and measurement systems.
- Motor Control: Can be used in motor control systems for precise analog-to-digital conversion.
- Direct Sensor Interface: Directly connects to transducers in remote data acquisition applications.
Q & A
- What is the resolution of the ADC121S625CIMM/NOPB?
The ADC121S625CIMM/NOPB has a resolution of 12 bits.
- What is the sample rate range of the ADC121S625CIMM/NOPB?
The sample rate range is from 50 ksps to 200 ksps.
- What type of analog inputs does the ADC121S625CIMM/NOPB support?
The device supports true differential inputs.
- What is the typical power consumption of the ADC121S625CIMM/NOPB at 200 ksps?
The typical power consumption is 2.25 mW at 200 ksps.
- What is the power consumption in power-down mode?
The power consumption in power-down mode is as low as 60 nW.
- What is the operating temperature range of the ADC121S625CIMM/NOPB?
The operating temperature range is from -40°C to +85°C.
- What type of package is the ADC121S625CIMM/NOPB available in?
The device is available in the VSSOP-8 package.
- Is the ADC121S625CIMM/NOPB compatible with SPI, QSPI, MICROWIRE, and DSP interfaces?
Yes, it is compatible with these serial interfaces.
- What is the common mode rejection ratio (CMRR) of the ADC121S625CIMM/NOPB?
The CMRR is 82 dB.
- Can the ADC121S625CIMM/NOPB be used in automotive navigation systems?
Yes, it is suitable for automotive navigation systems due to its high accuracy and low power consumption.
