Overview
The MAX121EAP+ is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This BiCMOS, serial-output, sampling ADC combines an on-chip track/hold amplifier and a low-drift, low-noise, buried-zener voltage reference. It is designed for fast conversion speeds and low power consumption, making it suitable for a wide range of applications requiring precise and efficient analog-to-digital conversion.
The MAX121EAP+ operates with a throughput rate of up to 308k samples per second (ksps) and supports a full-scale analog input range of ±5V. It utilizes the successive-approximation architecture with a high-speed DAC to achieve both fast conversion speeds and low-power operation. The device is powered by +5V and -12V or -15V power supplies, with a power consumption of only 210mW.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Resolution | 14 | bits | |||
| Throughput Rate | 308 | ksps | |||
| Analog Input Range | -5 | +5 | V | ||
| Power Supplies | +5V, -12V or -15V | V | |||
| Power Consumption | 210 | mW | |||
| Operating Temperature Range | MAX121C_ | 0 | +70 | °C | |
| Operating Temperature Range | MAX121E_ | -40 | +85 | °C | |
| Storage Temperature Range | -65 | +160 | °C | ||
| Lead Temperature (soldering, 10s) | +300 | °C | |||
| Soldering Temperature (reflow) | +260 | °C |
Key Features
- High-Speed Conversion: The MAX121EAP+ achieves fast conversion speeds of up to 308ksps.
- Low Power Consumption: Operates with a power consumption of only 210mW.
- On-Chip Track/Hold and Reference: Includes an on-chip track/hold amplifier and a low-drift, low-noise, buried-zener voltage reference.
- Successive-Approximation Architecture: Utilizes a high-speed DAC to achieve fast conversion speeds and low-power operation.
- TTL- and CMOS-Compatible: All logic inputs and outputs are TTL- and CMOS-compatible.
- Direct Interface to DSPs: Can be directly interfaced to the serial port of most popular digital-signal processors.
- Compact Packaging: Available in 16-pin DIP, SO, and 20-pin SSOP packages for space-saving designs.
Applications
The MAX121EAP+ is suitable for a variety of applications that require high-speed, low-power analog-to-digital conversion. These include:
- Digital Signal Processing: Directly interfaces with popular digital-signal processors such as TMS320, µPD77230, and ADSP2101.
- Industrial Control and Automation: Used in systems that require precise and fast analog-to-digital conversion.
- Telecommunications: Ideal for applications in telecommunications due to its high reliability and compact packaging.
- Automotive and Consumer Electronics: Suitable for use in automotive and consumer electronics where space and power efficiency are critical.
Q & A
- What is the resolution of the MAX121EAP+ ADC?
The MAX121EAP+ has a resolution of 14 bits.
- What is the maximum throughput rate of the MAX121EAP+?
The maximum throughput rate is 308ksps.
- What is the analog input range of the MAX121EAP+?
The full-scale analog input range is ±5V.
- What are the power supply requirements for the MAX121EAP+?
The device operates with +5V and -12V or -15V power supplies.
- How much power does the MAX121EAP+ consume?
The power consumption is 210mW.
- What are the operating temperature ranges for the MAX121EAP+?
The operating temperature ranges are 0°C to +70°C for MAX121C_ and -40°C to +85°C for MAX121E_.
- Can the MAX121EAP+ be directly interfaced to digital-signal processors?
Yes, it can be directly interfaced to the serial port of most popular digital-signal processors.
- What types of packages are available for the MAX121EAP+?
The device is available in 16-pin DIP, SO, and 20-pin SSOP packages.
- Is the MAX121EAP+ compatible with TTL and CMOS logic?
Yes, all logic inputs and outputs are TTL- and CMOS-compatible.
- What is the storage temperature range for the MAX121EAP+?
The storage temperature range is -65°C to +160°C.
