Overview
The MAX1142BCAP+ is a high-precision 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for industrial and commercial applications, offering robust performance and versatility. It operates on a single +5V supply and is RoHS compliant, making it suitable for a wide range of environments. The MAX1142BCAP+ features a successive-approximation register (SAR) architecture and supports serial interfaces such as SPI, QSPI, and MICROWIRE, allowing for easy integration with microprocessors without the need for external logic.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate (Per Second) | 200k |
| Input Type | Single-Ended |
| Data Interface | SPI, QSPI, MICROWIRE |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Architecture | SAR |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| Resolution | 14 bit |
| Number of Channels | 1 Channel |
| Interface Type | Serial |
| SNR - Signal to Noise Ratio | 82 dB |
| DNL - Differential Nonlinearity | +/- 1 LSB |
| INL - Integral Nonlinearity | +/- 2 LSB |
| Power Dissipation | 640 mW |
Key Features
- High-precision 14-bit analog-to-digital conversion with no missing codes.
- Sampling rates of up to 200ksps for both unipolar and bipolar input signals.
- Single +5V supply operation with low power consumption (7.5mA in unipolar mode and 2.5µA in shutdown mode).
- Software-configurable unipolar and bipolar input ranges: 0 to +12V and ±12V for MAX1142.
- Internal or external reference and clock options.
- Three general-purpose digital output pins for controlling external multiplexers or programmable gain amplifiers (PGAs).
- Excellent dynamic performance with a signal-to-noise and distortion ratio (SINAD) of ≥ 81dB.
- Compact 20-pin SSOP package.
Applications
- Industrial process control and automation.
- Industrial I/O modules and data-acquisition systems.
- Medical instruments and diagnostic equipment.
- Portable and battery-powered equipment requiring high precision and low power consumption.
Q & A
- What is the resolution of the MAX1142BCAP+ ADC?
The MAX1142BCAP+ has a resolution of 14 bits.
- What are the sampling rates of the MAX1142BCAP+?
The MAX1142BCAP+ can sample at rates up to 200ksps for both unipolar and bipolar input signals.
- What are the input voltage ranges for the MAX1142BCAP+?
The MAX1142BCAP+ accepts input signals ranging from 0 to +12V (unipolar) or ±12V (bipolar).
- What interfaces does the MAX1142BCAP+ support?
The MAX1142BCAP+ supports SPI, QSPI, and MICROWIRE interfaces.
- What is the power consumption of the MAX1142BCAP+?
The device consumes 7.5mA in unipolar mode and 2.5µA in shutdown mode.
- What is the operating temperature range of the MAX1142BCAP+?
The operating temperature range is 0°C to 70°C.
- What package type is the MAX1142BCAP+ available in?
The MAX1142BCAP+ is available in a 20-pin SSOP package.
- Does the MAX1142BCAP+ have any general-purpose digital output pins?
Yes, it has three general-purpose digital output pins for controlling external multiplexers or PGAs.
- What is the signal-to-noise and distortion ratio (SINAD) of the MAX1142BCAP+?
The SINAD is ≥ 81dB.
- Is the MAX1142BCAP+ RoHS compliant?
Yes, the MAX1142BCAP+ is RoHS compliant.
