Overview
The MAX1293AEEG is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device features a successive-approximation ADC architecture, making it ideal for battery-powered and data-acquisition applications due to its excellent dynamic performance, low power consumption, and small package size. The MAX1293 operates with a single +3V analog supply and includes a VLOGIC pin that allows it to interface directly with a +1.8V to +5.5V digital supply. It is available in a 24-pin QSOP package, enhancing its suitability for space-constrained designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 4 (single-ended), 2 (pseudo-differential) | |
| Sampling Rate | 250ksps | |
| Analog Supply Voltage | +2.7V to +3.6V | V |
| Digital Supply Voltage (VLOGIC) | +1.8V to +5.5V | V |
| Internal Reference Voltage | +2.5V | V |
| Power Consumption (at 250ksps) | 5.7mW (VDD = VLOGIC) | mW |
| Power-Down Current | < 10µA | µA |
| Wake-Up Time | 2µs | µs |
| Interface | Byte-wide parallel (8 + 4) | |
| Package Type | 24-pin QSOP |
Key Features
- Successive-approximation ADC architecture
- Automatic power-down and fast wake-up (2µs)
- On-chip clock and +2.5V internal reference
- High-speed, byte-wide parallel interface
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Low power consumption with two software-selectable power-down modes
- Internal 3MHz full-power bandwidth track/hold
- User-adjustable logic level (+1.8V to +3.6V)
- Small footprint in 24-pin QSOP package
Applications
The MAX1293AEEG is well-suited for a variety of applications, including:
- Battery-powered devices due to its low power consumption
- Data-acquisition systems requiring high dynamic performance and low power
- Space-constrained designs where small package size is critical
- Circuits with demanding power consumption and space requirements
Q & A
- What is the resolution of the MAX1293AEEG ADC?
The MAX1293AEEG has a 12-bit resolution.
- How many channels does the MAX1293AEEG support?
The MAX1293AEEG supports 4 single-ended channels or 2 pseudo-differential channels.
- What is the maximum sampling rate of the MAX1293AEEG?
The maximum sampling rate is 250ksps.
- What is the power consumption of the MAX1293AEEG at 250ksps?
The power consumption is 5.7mW when VDD = VLOGIC.
- How long does it take for the MAX1293AEEG to wake up from power-down mode?
The wake-up time is 2µs.
- What type of interface does the MAX1293AEEG use?
The MAX1293AEEG uses a byte-wide parallel interface.
- What is the package type of the MAX1293AEEG?
The MAX1293AEEG is available in a 24-pin QSOP package.
- Can the MAX1293AEEG operate with different logic levels?
Yes, the MAX1293AEEG has a user-adjustable logic level from +1.8V to +3.6V.
- What are the power-down modes available in the MAX1293AEEG?
The MAX1293AEEG has two software-selectable power-down modes.
- What is the internal reference voltage of the MAX1293AEEG?
The internal reference voltage is +2.5V.
