Overview
The MAX121 is a 14-bit analog-to-digital converter (ADC) produced by Maxim Integrated, now a part of Analog Devices Inc. This device is designed to provide high-resolution and fast conversion speeds, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
The MAX121 combines an on-chip track/hold amplifier and a low-drift, low-noise, buried-zener voltage reference. It operates with a throughput rate of up to 308 kilosamples per second (ksps) and features a full-scale analog input range of ±5V. The device is compatible with TTL and CMOS logic and can be directly interfaced to the serial port of most popular digital signal processors.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 bits | |
| Conversion Time | 2.9 µs | |
| Throughput Rate | Up to 308 ksps | |
| Acquisition Time | 400 ns | |
| Analog Input Range | ±5V | |
| Supply Voltage | +5V, -12V or -15V | |
| Power Consumption | 210 mW | |
| Serial Interface Compatibility | SPI, QSPI, MICROWIRE, TMS320 | |
| Package Options | 16-pin DIP, SO, 20-pin SSOP |
Key Features
- High-resolution 14-bit ADC with fast conversion speeds.
- On-chip track/hold amplifier and low-drift, low-noise, buried-zener voltage reference.
- Throughput rate of up to 308 ksps.
- Full-scale analog input range of ±5V.
- TTL- and CMOS-compatible logic inputs and outputs.
- Direct interface to the serial port of most popular digital signal processors.
- Three operating modes: controlled by CONVST input, CS input, and continuous-conversion mode.
- Low power consumption of 210 mW.
Applications
- Digital Signal Processing (DSP).
- Audio and Telecom Processing.
- Speech Recognition and Synthesis.
- DSP Servo Control.
- Spectrum Analysis.
Q & A
- What is the resolution of the MAX121 ADC?
The MAX121 has a resolution of 14 bits.
- What is the maximum throughput rate of the MAX121?
The MAX121 has a maximum throughput rate of up to 308 ksps.
- What is the acquisition time of the MAX121?
The acquisition time of the MAX121 is 400 ns.
- What are the supply voltage requirements for the MAX121?
The MAX121 operates with +5V and -12V or -15V power supplies.
- Is the MAX121 compatible with TTL and CMOS logic?
Yes, the MAX121 is TTL- and CMOS-compatible.
- Can the MAX121 be directly interfaced to digital signal processors?
Yes, the MAX121 can be directly interfaced to the serial port of most popular digital signal processors.
- What are the package options available for the MAX121?
The MAX121 is available in 16-pin DIP, SO, and 20-pin SSOP packages.
- What are the typical applications of the MAX121?
The MAX121 is typically used in digital signal processing, audio and telecom processing, speech recognition and synthesis, DSP servo control, and spectrum analysis.
- How much power does the MAX121 consume?
The MAX121 consumes 210 mW of power.
- Does the MAX121 have multiple operating modes?
Yes, the MAX121 has three operating modes: controlled by CONVST input, CS input, and continuous-conversion mode.
