AD8310ARM - 95dB Log Amp DC-440MHz | Analog Devices
MPN: AD8310ARM β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.51 | $6.51 |
| 10 | $5.98 | $59.80 |
| 100 | $5.21 | $521.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.23 | $4,230.00 |
Drop-in alternatives for AD8310ARM β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
AD8310ARMZ
β Drop-Inπ Reference alternative (not in catalog)
AD8310A
β Drop-Inπ Reference alternative (not in catalog)
AD8314ARM
β Drop-Inπ Reference alternative (not in catalog)
MAX4000
β Drop-Inπ Reference alternative (not in catalog)
LT5534
β Drop-Inπ Reference alternative (not in catalog)
AD8310ARM Maximum Ratings & Electrical Characteristics
| Function | Logarithmic Amplifier |
| Frequency Range | DC to 440 MHz |
| Dynamic Range | 95 dB |
| Input Range | -91 dBV to +4 dBV |
| Output Type | Voltage |
| Output Rise Time | <15 ns |
| Output Drive Current | 25 mA into grounded load |
| Supply Voltage | 2.7 V to 5.5 V |
| Quiescent Current | 8 mA typical |
| Linearity Error | 0.4 dB |
| Output Slope | 24 mV/dB |
| Package | 8-MSOP |
| Operating Temperature | -40Β°C to +85Β°C |
| RoHS | Compliant |
| Mounting Type | Surface Mount |
AD8310ARM Pin Configuration
| Pin 1 | INP β Non-inverting input |
| Pin 2 | INM β Inverting input |
| Pin 3 | GND β Ground |
| Pin 4 | OUT β Logarithmic output |
| Pin 5 | VPS β Positive supply |
| Pin 6 | NC β No connect |
| Pin 7 | NC β No connect |
| Pin 8 | NC β No connect |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD8310ARM is suitable for 6 applications: Receiver Signal Strength Indication (RSSI), RF Power Monitoring, Signal Level Detection in Test Equipment, Logarithmic Conversion in Radar Systems, IF Amplifier AGC Control, Wireless Infrastructure.
Receiver Signal Strength Indication (RSSI)
The AD8310ARM provides accurate RSSI measurement over a 95 dB dynamic range from DC to 440 MHz. Its fast rise time (<15 ns) enables real-time signal strength monitoring in communication receivers. The logarithmic output voltage directly corresponds to input power in dBm, simplifying calibration. With a supply current of only 8 mA, it is ideal for portable and battery-operated receivers where power consumption is critical. The device's wide bandwidth covers HF, VHF, and UHF bands, making it versatile for multi-band radios.
Recommended
RF Power Monitoring
In RF transmitters, the AD8310ARM can be used to monitor output power levels by coupling a small portion of the RF signal to the input. Its 95 dB dynamic range allows detection of both low and high power levels without switching gain stages. The voltage output can be fed to an ADC for digital power control or to an analog comparator for over-power protection. The device's fast response ensures quick detection of power surges, protecting the amplifier stages. Its small MSOP package fits compact transmitter designs.
Recommended
Signal Level Detection in Test Equipment
The AD8310ARM is well-suited for spectrum analyzers, signal generators, and network analyzers where accurate signal level measurement is required. Its DC to 440 MHz bandwidth covers many IF and RF test points. The logarithmic output provides a wide measurement range without range switching, simplifying instrument design. The device's temperature stability ensures consistent measurements across operating conditions. Its fast rise time allows for quick sweep measurements in automated test systems.
Recommended
Logarithmic Conversion in Radar Systems
Radar receivers require logarithmic amplifiers to compress the wide dynamic range of returned echoes. The AD8310ARM's 95 dB dynamic range and fast response make it suitable for pulse radar applications. Its voltage output can be directly interfaced with ADC for digital signal processing. The device's wide bandwidth supports various radar frequency bands up to 440 MHz. Its low power consumption is beneficial for portable or airborne radar systems.
Recommended
IF Amplifier AGC Control
In superheterodyne receivers, the AD8310ARM can be used in automatic gain control (AGC) loops to maintain a constant IF output level. Its logarithmic output provides a control voltage proportional to the input level, which can be used to adjust the gain of variable gain amplifiers. The fast response time ensures the AGC loop can track rapid signal variations. The device's wide dynamic range prevents AGC saturation even with strong interferers. Its low power consumption is ideal for battery-operated receivers.
Recommended
Wireless Infrastructure
In cellular base stations and other wireless infrastructure, the AD8310ARM is used for transmit power monitoring and receiver RSSI. Its wide frequency range covers cellular bands up to 440 MHz, including GSM, CDMA, and LTE low bands. The device's accuracy and stability ensure reliable power control, improving system efficiency and reducing interference. Its small package allows high-density board designs. The device's low cost makes it attractive for high-volume infrastructure equipment.
Recommended
Recommended Products Summary
Engineering reference data for AD8310ARM β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD8310ARMZ | AD8314ARM | MAX4000 |
|---|---|---|---|---|
| Package | 8-MSOP | 8-MSOP | 8-MSOP | 8-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated |
| Frequency Range | DC to 440 MHz | DC to 440 MHz | 0.1 GHz to 2.7 GHz | DC to 2.5 GHz |
| Dynamic Range | 95 dB | 95 dB | 45 dB | 70 dB |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Quiescent Current | 8 mA | 8 mA | 8 mA | 5.9 mA |
| Output Rise Time | <15 ns | <15 ns | 10 ns | 10 ns |
| RoHS | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Wide dynamic range of 95 dB (vs AD8314ARM)
- DC to 440 MHz frequency range (vs MAX4000)
- Fast rise time of <15 ns (vs LT5534)
Design Notes
Decouple the VPS pin with a 0.1 Β΅F ceramic capacitor placed as close as possible to the pin, and a 10 Β΅F tantalum capacitor for low-frequency decoupling. The AD8310ARM draws 8 mA typical, so ensure the supply can handle transient currents during fast output swings.
For RF applications, use a ground plane and keep input traces short to minimize parasitic inductance. The input is high-impedance (1 kΞ©), so match the source impedance to avoid reflections. AC-couple the input with a series capacitor for frequencies above DC.
Do not exceed the absolute maximum supply voltage of 5.5 V. The output can drive up to 25 mA into a grounded load, but avoid shorting the output to ground for extended periods. For accurate measurements, calibrate the output slope and intercept using known input levels.
Compliance Information
AD8310ARM is RoHS compliant per Analog Devices. Not AEC-Q100 qualified. For lead-free version, use AD8310ARMZ.
