Overview
The MAX149BCAP+ is a 10-bit data-acquisition system produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel multiplexer, a high-bandwidth track/hold circuit, and a serial interface, making it suitable for various data-acquisition applications. It operates from a single supply voltage ranging from +2.7V to +5.25V and supports high conversion speeds up to 133ksps. The MAX149BCAP+ is designed for low power consumption and features software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 10 bits |
| Number of Channels | 8 |
| Supply Voltage | +2.7V to +5.25V |
| Conversion Rate | Up to 133ksps |
| Reference Type | External, Internal |
| Reference Voltage | 2.5V |
| Operating Temperature Range | 0°C to +70°C (MAX149_C_P), -40°C to +85°C (MAX149_E_P), -55°C to +125°C (MAX149BMAP) |
| Storage Temperature Range | -60°C to +150°C |
| Power Dissipation | 640mW (SSOP package) |
| Signal-to-Noise + Distortion (SINAD) | 66 dB |
| Total Harmonic Distortion (THD) | -70 dB (up to the 5th harmonic) |
| Spurious-Free Dynamic Range (SFDR) | 70 dB |
| Channel-to-Channel Crosstalk | -75 dB |
| Small-Signal Bandwidth | -3dB rolloff at 2.25 MHz |
| Full-Power Bandwidth | 1.0 MHz |
Key Features
- 8-channel multiplexer with high-bandwidth track/hold circuit
- Software-configurable analog inputs for unipolar/bipolar and single-ended/differential operation
- 4-wire serial interface compatible with SPI/QSPI/MICROWIRE devices
- Serial-strobe output for direct connection to TMS320-family digital signal processors
- Internal or external serial-interface clock for successive-approximation analog-to-digital conversions
- Low power consumption with various operating modes
Applications
- Data-acquisition systems
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems requiring high-speed data conversion
Q & A
- What is the resolution of the MAX149BCAP+ ADC?
The MAX149BCAP+ has a resolution of 10 bits. - How many channels does the MAX149BCAP+ support?
The MAX149BCAP+ supports 8 channels. - What is the operating supply voltage range for the MAX149BCAP+?
The operating supply voltage range is from +2.7V to +5.25V. - What is the maximum conversion rate of the MAX149BCAP+?
The maximum conversion rate is up to 133ksps. - Is the MAX149BCAP+ compatible with SPI/QSPI/MICROWIRE interfaces?
Yes, it is compatible with SPI/QSPI/MICROWIRE devices. - What is the typical power dissipation of the MAX149BCAP+ in SSOP package?
The typical power dissipation is 640mW. - What are the operating temperature ranges for the MAX149BCAP+?
The operating temperature ranges are 0°C to +70°C (MAX149_C_P), -40°C to +85°C (MAX149_E_P), and -55°C to +125°C (MAX149BMAP). - What is the storage temperature range for the MAX149BCAP+?
The storage temperature range is -60°C to +150°C. - What is the signal-to-noise plus distortion (SINAD) of the MAX149BCAP+?
The SINAD is 66 dB. - What are some common applications of the MAX149BCAP+?
Common applications include data-acquisition systems, industrial control systems, medical devices, aerospace and defense systems, and automotive systems.
