Overview
The AD831APZ, produced by Analog Devices Inc., is a low distortion, wide dynamic range, monolithic mixer. It is designed for applications such as RF to IF downconversion in HF and VHF receivers, direct-to-baseband conversion, image-reject mixers, and I/Q modulators and demodulators. The mixer features a doubly balanced design, ensuring high port-to-port isolation and no insertion loss. It operates with a low LO drive requirement of –10 dBm and supports single- or dual-supply operation, making it versatile for various system configurations.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| RF Input Bandwidth | –10 dBm Signal Level, IP3 ≥ +20 dBm | 400 MHz | |||
| 1 dB Compression Point | +10 dBm | ||||
| Third Order Intercept (IP3) | +24 dBm | ||||
| LO Drive Required | –10 dBm | ||||
| RF and LO Input Bandwidths | 500 MHz | ||||
| Differential Current IF Output Bandwidth | 250 MHz | ||||
| Single-Ended Voltage IF Output Bandwidth | DC to >200 MHz | ||||
| Supply Voltage | 4.5 V | 5.5 V | V | ||
| Supply Current | 125 mA | mA | |||
| Noise Figure | At 70 MHz, matched input | 10.3 dB | dB | ||
| Operating Temperature | –40°C | 85°C | °C | ||
| Package | 20-LCC (J-Lead) |
Key Features
- Doubly Balanced Mixer: Ensures high port-to-port isolation and no insertion loss.
- Low Distortion: Features a +24 dBm third-order intercept point (IP3) and a +10 dBm 1 dB compression point.
- Low LO Drive Required: Operates with a low LO drive of –10 dBm.
- Single- or Dual-Supply Operation: Flexible power supply options, including DC coupled using dual supplies.
- No Lower Frequency Limit: Operates from DC to high frequencies.
- User-Programmable Power Consumption: Allows tradeoff between dynamic range and power consumption.
- High Port-to-Port Isolation: Reduces interference and improves overall system performance.
- No Insertion Loss: Unlike passive mixers, it does not require an external diplexer or passive termination.
Applications
- High Performance RF/IF Mixer: Ideal for RF to IF downconversion in HF and VHF receivers.
- Direct to Baseband Conversion: Suitable for direct-coupled applications such as direct-to-baseband conversion and quadrature-amplitude demodulation.
- Image-Reject Mixers: Used in image-reject mixer configurations to enhance signal quality.
- I/Q Modulators and Demodulators: Employed in I/Q modulation and demodulation schemes for complex signal processing.
- Cellular and Two-Way Radio Base Stations: Can be used as a second mixer in these applications with reduced power consumption while maintaining high performance.
Q & A
- What is the AD831APZ mixer used for?
The AD831APZ is used for RF to IF downconversion in HF and VHF receivers, direct-to-baseband conversion, image-reject mixers, and I/Q modulators and demodulators.
- What is the third-order intercept point (IP3) of the AD831APZ?
The AD831APZ has a third-order intercept point (IP3) of +24 dBm.
- What is the required LO drive for the AD831APZ?
The AD831APZ requires a low LO drive of –10 dBm.
- Can the AD831APZ operate with a single or dual supply?
Yes, the AD831APZ supports both single- and dual-supply operation.
- What is the noise figure of the AD831APZ at 70 MHz?
The noise figure at 70 MHz is 10.3 dB.
- Is the AD831APZ RoHS compliant?
Yes, the AD831APZ is RoHS compliant.
- What is the operating temperature range of the AD831APZ?
The operating temperature range is from –40°C to 85°C.
- What is the package type of the AD831APZ?
The AD831APZ comes in a 20-LCC (J-Lead) package.
- Can the power consumption of the AD831APZ be programmed?
Yes, the AD831APZ allows user-programmable power consumption.
- Does the AD831APZ have any lower frequency limit for operation?
No, the AD831APZ can operate from DC to high frequencies.
