Overview
The MAX145ACUA+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX144/MAX145 series, known for their high performance and low power consumption. The MAX145 operates with a single supply voltage ranging from +2.7V to +5.25V and features a successive-approximation ADC with an on-chip track-and-hold (T/H) structure. It is available in 8-pin µMAX and DIP packages, making it suitable for applications where space and power efficiency are critical.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Supply Voltage | +2.7V to +5.25V |
| Sampling Rate | Up to 108ksps |
| Power Consumption | 3.2mW (VDD = +3.6V) at maximum sampling rate |
| Wake-Up Time | 2.5µs |
| Conversion Time | 7.4µs |
| Input Type | Pseudo-differential (MAX145) |
| Serial Interface | 3-wire, SPI, QSPI, and MICROWIRE-compatible |
| Package Type | 8-pin µMAX and DIP |
Key Features
- Low power consumption with automatic power-down and fast wake-up
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- On-chip clock and track-and-hold (T/H) structure
- Pseudo-differential input (MAX145) or single-ended input (MAX144)
- Excellent dynamic performance and low aperture jitter
- Small package size (8-pin µMAX and DIP)
Applications
- Battery-powered devices
- Data-acquisition systems
- Space-constrained circuits with demanding power requirements
- Medical devices, such as portable health monitors
- Industrial control systems
- Aerospace and defense applications where low power and high reliability are essential
Q & A
- What is the resolution of the MAX145 ADC?
The MAX145 has a resolution of 12 bits. - What is the supply voltage range for the MAX145?
The supply voltage range is from +2.7V to +5.25V. - What is the maximum sampling rate of the MAX145?
The maximum sampling rate is up to 108ksps. - How much power does the MAX145 consume at maximum sampling rate?
The power consumption is 3.2mW at VDD = +3.6V. - What type of input does the MAX145 accept?
The MAX145 accepts pseudo-differential inputs. - What is the wake-up time for the MAX145?
The wake-up time is 2.5µs. - Is the MAX145 compatible with SPI, QSPI, and MICROWIRE interfaces?
Yes, the MAX145 has a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE. - In what package types is the MAX145 available?
The MAX145 is available in 8-pin µMAX and DIP packages. - What are some typical applications for the MAX145?
Typical applications include battery-powered devices, data-acquisition systems, and space-constrained circuits with demanding power requirements. - Does the MAX145 have an on-chip clock?
Yes, the MAX145 features an on-chip clock.
