MAX1241ACPA 12-Bit Serial ADC DIP-8 (MAX1241ACPA IC)
The MAX1241ACPA is a high-precision, low-power 12-bit Analog-to-Digital Converter (ADC) from Maxim Integrated (Analog Devices). Housed in an 8-pin DIP package, it is designed for applications where high resolution and minimal power consumption are critical. The IC features a single-channel input and utilizes a 3-wire serial interface compatible with SPI, QSPI, and Microwire protocols. With a conversion time of less than 9 microseconds and a supply current of only 250uA, it is an ideal choice for battery-powered instruments and remote sensing systems.
This IC is widely used in high-accuracy data acquisition, digital signal processing, and industrial process control. It is a favored component for professional electronics projects in India that require a precise through-hole ADC for interfacing analog sensors with microcontrollers while maintaining a small PCB footprint.
Key Features
- 12-Bit Resolution: High-accuracy conversion with no missing codes.
- Single-Supply Operation: Works efficiently on a +2.7V to +5.25V supply range.
- Low Power Consumption: Typical supply current of 250uA; drops to 2uA in shutdown mode.
- High-Speed Conversion: Maximum conversion time of 9us (7.5us typical).
- Serial Interface: Simple 3-wire SPI/QSPI/Microwire compatible communication.
- Small Footprint: Provides 12-bit performance in a compact 8-pin DIP or SOIC package.
- Internal Track/Hold: High-performance circuitry for capturing fast-changing analog signals.
Specifications
- IC Type: Successive-Approximation Analog-to-Digital Converter (ADC)
- Resolution: 12-Bit
- Number of Channels: 1 (Single Ended)
- Supply Voltage (VDD): 2.7V to 5.25V
- Sampling Rate: 73ksps (Max)
- Linearity (INL): +/- 0.5 LSB (ACPA variant)
- Interface Type: Serial (3-Wire)
- Package Type: PDIP-8
- Mounting Type: Through-Hole
- Operating Temperature: 0 to 70 degrees Celsius
Interfaces
- Pin 1 (VREF): Reference Voltage Input
- Pin 2 (AIN): Sampling Analog Input
- Pin 3 (SHDN): Shutdown Input (Active Low)
- Pin 4 (GND): Ground
- Pin 5 (CS): Chip Select (Active Low)
- Pin 6 (DOUT): Serial Data Output
- Pin 7 (SCLK): Serial Clock Input
- Pin 8 (VDD): Positive Supply Voltage Input
