Overview
The ADL5561ACPZ-R7 is a high-performance differential amplifier produced by Analog Devices Inc., optimized for RF and IF applications. This amplifier is renowned for its low noise of 2.1 nV/√Hz and excellent distortion performance over a wide frequency range, making it an ideal driver for high-speed 8-bit to 16-bit analog-to-digital converters (ADCs).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| -3 dB Bandwidth | AV = 6 dB, VOUT ≤ 1.0 V p-p | - | 2900 | - | MHz |
| -3 dB Bandwidth | AV = 12 dB, VOUT ≤ 1.0 V p-p | - | 2300 | - | MHz |
| -3 dB Bandwidth | AV = 15.5 dB, VOUT ≤ 1.0 V p-p | - | 1800 | - | MHz |
| Bandwidth for 0.1 dB Flatness | AV = 6 dB, VOUT ≤ 1.0 V p-p | - | 200 | - | MHz |
| Gain Accuracy | AV = 6 dB, RL = open | - | 0.15 | - | dB |
| Gain Supply Sensitivity | VCC ± 10% | - | -0.023 | - | dB/V |
| Slew Rate Rise | AV = 15.5 dB, RL = 200 Ω, VOUT = 2 V step | - | 9.8 | - | V/ns |
| Slew Rate Fall | AV = 15.5 dB, RL = 200 Ω, VOUT = 2 V step | - | 10.1 | - | V/ns |
| Settling Time | 2 V step to 1% | - | 2 | - | ns |
| Overdrive Recovery Time | VIN = 4 V to 0 V step, VOUT ≤ ±10 mV | - | 3 | - | ns |
| Reverse Isolation (S12) | - | - | 60 | - | dB |
| Output Common Mode Voltage | - | - | VCC/2 | - | V |
| Maximum Output Voltage Swing | 1 dB compressed | - | 4.3 | - | V p-p |
| Output Common-Mode Offset | Referenced to VCC/2 | - | 25 | - | mV |
| Output Common-Mode Drift | −40°C to +85°C | - | 170 | - | µV/°C |
| Input Bias Current | - | - | 3 | - | µA |
| Input Resistance (Differential) | AV = 6 dB | - | 400 | - | Ω |
| Supply Voltage | - | 3 | 3.3 | 3.6 | V |
| Quiescent Current | ENBL high | 37 | 40 | 44.5 | mA |
| Quiescent Current | ENBL low | - | 3 | - | mA |
Key Features
- Low Noise and Distortion: The ADL5561 offers low noise of 2.1 nV/√Hz and excellent distortion performance over a wide frequency range, making it ideal for high-speed applications.
- Adjustable Gain: The amplifier provides three gain levels of 6 dB, 12 dB, and 15.5 dB through a pin-strappable configuration. For single-ended input configurations, the gains are reduced to 5.6 dB, 11.1 dB, and 14.1 dB. External series input resistors can be used to achieve any gain from 0 dB to 15.5 dB.
- High Bandwidth: The amplifier has a -3 dB bandwidth of up to 2900 MHz, depending on the gain setting.
- Low Power Consumption: The quiescent current is typically 40 mA when enabled and less than 3 mA when disabled, offering excellent input-to-output isolation.
- Wide Supply Voltage Range: The device operates with a supply voltage range of 3 to 3.6 V.
- High Slew Rate: The slew rate is 9.8 V/ns for rising edges and 10.1 V/ns for falling edges.
- Fast Settling Time: The settling time to 1% is 2 ns, and the overdrive recovery time is 3 ns.
Applications
- RF and IF Applications: The ADL5561 is optimized for RF and IF applications, making it suitable for use in various wireless communication systems.
- High-Speed ADC Drivers: It is an ideal driver for high-speed 8-bit to 16-bit analog-to-digital converters (ADCs) due to its low noise and high bandwidth.
- General-Purpose IF and Broadband Applications: The amplifier’s adjustable gain and low distortion make it suitable for general-purpose IF and broadband applications.
Q & A
- What is the typical noise level of the ADL5561?
The ADL5561 has a typical noise level of 2.1 nV/√Hz.
- What are the available gain levels for the ADL5561?
The ADL5561 provides gain levels of 6 dB, 12 dB, and 15.5 dB through a pin-strappable configuration. For single-ended input configurations, the gains are 5.6 dB, 11.1 dB, and 14.1 dB.
- What is the maximum bandwidth of the ADL5561?
The maximum -3 dB bandwidth of the ADL5561 is up to 2900 MHz, depending on the gain setting.
- How much power does the ADL5561 consume when enabled and disabled?
The quiescent current is typically 40 mA when enabled and less than 3 mA when disabled.
- What is the slew rate of the ADL5561?
The slew rate is 9.8 V/ns for rising edges and 10.1 V/ns for falling edges.
- What is the settling time of the ADL5561?
The settling time to 1% is 2 ns.
- What is the overdrive recovery time of the ADL5561?
The overdrive recovery time is 3 ns.
- What is the typical input bias current of the ADL5561?
The typical input bias current is 3 µA.
- What is the supply voltage range for the ADL5561?
The supply voltage range is from 3 to 3.6 V.
- What are some common applications of the ADL5561?
The ADL5561 is commonly used in RF and IF applications, as a driver for high-speed ADCs, and in general-purpose IF and broadband applications.
