Overview
The MAX121EPE+ is a 14-bit, serial-output, sampling analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This BiCMOS device combines an on-chip track/hold and a low-drift, low-noise, buried-zener voltage reference, offering fast conversion speeds and low power consumption. The MAX121EPE+ is designed for high-performance applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14-bit | |
| Sampling Rate | 308 ksps | |
| Conversion Time | 2.9 µs | |
| Acquisition Time | 400 ns | |
| Analog Input Range | ±5 V | |
| Power Supplies | +5 V, -12 V or -15 V | |
| Power Consumption | 210 mW | |
| Operating Temperature Range | -40°C to +85°C (MAX121E) | |
| Package Types | 16-pin DIP, 16-pin SO, 20-pin SSOP | |
| Interface Type | SPI | |
| Clock Frequency Range | 1.1 MHz to 5.5 MHz | |
| SINAD | 78 dB | |
| THD | -85 dB |
Key Features
- High-speed successive-approximation architecture with a high-speed DAC for fast conversion and low power operation.
- Low noise and distortion with 78 dB SINAD and -85 dB THD.
- TTL- and CMOS-compatible clocks and logic inputs/outputs.
- Direct interface to the serial port of most popular digital-signal processors.
- Space-saving packages including 16-pin DIP, 16-pin SO, and 20-pin SSOP.
- Low power consumption of 210 mW.
Applications
- Digital Signal Processing
- Audio and Telecom Processing
- Speech Recognition and Synthesis
- DSP Servo Control
- Spectrum Analysis
Q & A
- What is the resolution of the MAX121EPE+ ADC?
The MAX121EPE+ has a 14-bit resolution.
- What is the maximum sampling rate of the MAX121EPE+?
The maximum sampling rate is 308 ksps.
- What is the conversion time of the MAX121EPE+?
The conversion time is 2.9 µs.
- What is the analog input range of the MAX121EPE+?
The analog input range is ±5 V.
- What power supplies are required for the MAX121EPE+?
The device operates with +5 V and -12 V or -15 V power supplies.
- What is the power consumption of the MAX121EPE+?
The power consumption is 210 mW.
- What are the package options for the MAX121EPE+?
The device is available in 16-pin DIP, 16-pin SO, and 20-pin SSOP packages.
- Is the MAX121EPE+ compatible with TTL and CMOS clocks?
Yes, it is compatible with TTL- and CMOS-compatible clocks in the frequency range from 1.1 MHz to 5.5 MHz.
- What is the SINAD of the MAX121EPE+?
The SINAD is 78 dB.
- What are some typical applications of the MAX121EPE+?
Typical applications include Digital Signal Processing, Audio and Telecom Processing, Speech Recognition and Synthesis, DSP Servo Control, and Spectrum Analysis.
