Overview
The MAX12558 is a dual 3.3V, 14-bit analog-to-digital converter (ADC) designed by Analog Devices Inc./Maxim Integrated. This component is optimized for low power consumption, small size, and high dynamic performance, particularly in intermediate frequency (IF) and baseband sampling applications. It operates from a single 3.3V supply and features fully differential wideband track-and-hold (T/H) inputs, driving internal quantizers. The MAX12558 is ideal for applications requiring high signal-to-noise ratio (SNR) and low power operation, making it suitable for various communication and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Supply Voltage | 3.3V |
| Power Consumption | 756mW (Single-Ended Clock Mode), 789mW (Differential Clock Mode) |
| Power-Down Mode | 330µW |
| Analog Input Type | Fully Differential or Single-Ended |
| Analog Input Bandwidth | Up to 400MHz |
| Reference Structure | Internal 2.048V bandgap reference or external reference |
| Clock Input | Differential or Single-Ended, accepts 25% to 75% duty cycle |
| Clock Modes | User-selectable DIV2 and DIV4 modes |
| Digital Output Format | Two's Complement or Gray Code |
| Package Type | 68-Pin Thin QFN (10mm x 10mm x 0.8mm) |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Fully differential wideband track-and-hold (T/H) inputs
- Adjustable differential analog input voltage range (±0.35V to ±1.15V)
- Internal or external, shared reference structure
- Differential or single-ended clock input with user-selectable DIV2 and DIV4 modes
- CMOS outputs in two's complement or Gray code format
- Out-of-range and data-valid indicators
- Low power consumption with a power-down mode
- Small, 68-pin thin QFN package
Applications
- Digital Set-Top Boxes
- I/Q Receivers
- IF and Baseband Communication Receivers: Cellular, LMDS, Point-to-Point Microwave, MMDS, HFC, WLAN
- Low-Power Data Acquisition
- Portable Instrumentation
- Ultrasound and Medical Imaging
Q & A
- What is the resolution of the MAX12558 ADC?
The MAX12558 is a 14-bit analog-to-digital converter.
- What is the supply voltage for the MAX12558?
The MAX12558 operates from a single 3.3V supply.
- What is the power consumption of the MAX12558 in normal operating mode?
The power consumption is 756mW in single-ended clock mode and 789mW in differential clock mode.
- Does the MAX12558 have a power-down mode?
- What types of analog inputs does the MAX12558 support?
The MAX12558 supports fully differential or single-ended analog inputs.
- What is the maximum analog input bandwidth of the MAX12558?
The T/H input stages accept inputs up to 400MHz.
- Can the MAX12558 use an external reference?
- What clock input options are available for the MAX12558?
The MAX12558 accepts differential or single-ended clock inputs and supports user-selectable DIV2 and DIV4 modes.
- What digital output formats are supported by the MAX12558?
The digital output format is pin-selectable to be either two's complement or Gray code.
- What is the package type and size of the MAX12558?
The MAX12558 is available in a 68-pin thin QFN package (10mm x 10mm x 0.8mm).
