ADL6010SCPZN-R2

ADL6010_V01 AD | Alldatasheet

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Fast Responding, 45 dB Range, 0.5 GHz to 43.5 GHz Envelope Detector Data Sheet ADL6010 Rev. E Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Tel: 781.329.4700 ©2014–2020 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com

FEATURES

Schottky diode detector with linearization Broadband 50 Ω input impedance Accurate response from 0.5 GHz to 43.5 GHz with minimal slope variation Input range of −30 dBm to +15 dBm, referred to 50 Ω Excellent temperature stability

2.1 V/VPEAK (output voltage per input peak voltage) slope at

10 GHz

Fast envelope bandwidth: 40 MHz Fast output rise time: 4 ns Low power consumption: 1.6 mA at 5.0 V 2 mm × 2 mm, 6-lead LFCSP package

APPLICATIONS

Microwave point to point links Microwave instrumentation Radar-based measurement systems FUNCTIONAL BLOCK DIAGRAM 11617-001 LINEARIZER RFCM ADL6010 RFIN RFCM VPOS VOUT COMM Figure 1. GENERAL DESCRIPTION The ADL6010 is a versatile, broadband envelope detector covering the microwave spectrum. It provides state-of-the- art accuracy with very low power consumption (8 mW) in a simple, easy to use 6-lead format. The output is a baseband voltage proportional to the instantaneous amplitude of the radio frequency (RF) input signal. It exhibits minimal slope variation of the RF input to envelope output transfer function from 0.5 GHz to 43.5 GHz. The detector cell uses a proprietary eight Schottky diode array followed by a novel linearizer circuit that creates a linear voltmeter with an overall scaling factor (or transfer gain) of nominally ×2.2 relative to the voltage amplitude of the input. Although the ADL6010 is not inherently a power responding device, it remains convenient to specify the input in this way. Thus, the permissible input power, relative to a 50 Ω source input impedance, ranges from −30 dBm to +15 dBm. The corresponding input voltage amplitudes of 11.2 mV to 1.8 V generate quasi-dc outputs from about 25 mV to 4 V above common (COMM). A subtle aspect of the balanced detector topology is that no even-order distortion, caused by nonlinear source loading, occurs at the input. This is an important benefit in applications where a low ratio coupler is used to extract a signal sample and is a significant improvement over traditional diode detectors. The power equivalent of a fluctuating RF input amplitude can be extracted by the addition of an rms-to-dc converter IC. Alternatively, the baseband output can be applied to a suitably fast analog-to-digital converter (ADC) and the rms value (and other signal metrics, such as peak to average ratio) calculated in the digital domain. The output response accuracy is insensitive to variation in the supply voltage, which can range from 4.75 V to 5.25 V. The ultralow power dissipation contributes to its long-term stability. The ADL6010ACPZN is specified for operation from −40°C to +85°C, and the ADL6010SCPZN is specified for operation from −55°C to +125°C. Both are available in a 6-lead, 2 mm × 2 mm LFCSP package.

Rev. E | Page 2 of 23 TABLE OF CONTENTS

REVISION HISTORY

4/2020—Rev. D to Rev. E 9/2019—Rev. C to Rev. D 2/2019—Rev. B to Rev. C 6/2017—Rev. A to Rev. B 9/2014—Rev. 0 to Rev. A Deleted Figure 39 and Changes to Theory of Operation Section .. 16 7/2014—Revision 0: Initial Version

Rev. E | Page 3 of 23 SPECIFICATIONS VPOS = 5.0 V, TA = 25°C, 50 Ω source input impedance, single-ended input drive, unless otherwise stated. Table 1. Parameter Test Conditions/Comments Min Typ1 Max Unit RF INPUT INTERFACE RFIN pin Operating Frequency 0.5 43.5 GHz Nominal Input Impedance Single-ended input drive, see the Theory of Operation section 50 Ω FREQUENCY = 500 MHz Input RFIN to output VOUT Detection Range ±1 dB Error Continuous wave (CW) input 44 dB Maximum Input Level, ±1 dB Three point calibration at −26 dBm, −14 dBm, and +5 dBm 16 dBm Minimum Input Level, ±1 dB Three point calibration at −26 dBm, −14 dBm, and +5 dBm −28 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, input power (PIN) = +10 dBm +0.2/−0.1 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.2 dB −40°C < TA < +85°C, PIN = −10 dBm +0.7/−0.6 dB −55°C < TA < +125°C, PIN = −10 dBm +0.9/−1.2 dB Slope Calibration at −14 dBm and +5 dBm 2.2 V/ VPEAK Intercept Calibration at −14 dBm and +5 dBm 0.3 V Output Voltage PIN = +10 dBm 2.2 V PIN = −10 dBm 0.19 V FREQUENCY = 1 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 45 dB Maximum Input Level, ±1 dB Three point calibration at −25 dBm, −10 dBm, and +8 dBm 15 dBm Minimum Input Level, ±1 dB Three point calibration at −25 dBm, −10 dBm, and +8 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.1/−0.1 dB −55°C < TA < +125°C, PIN = +10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = −10 dBm +0.3/−0.3 dB −40°C < TA < +85°C, PIN = −10 dBm +0.4/−0.6 dB Slope Calibration at −10 dBm and +8 dBm 2.2 V/VPEAK Intercept Calibration at −10 dBm and +8 dBm 0.5 V Output Voltage PIN = +10 dBm 2.25 V PIN = −10 dBm 0.22 V FREQUENCY = 5 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 46 dB Maximum Input Level, ±1 dB Three point calibration at −25 dBm, −10 dBm, and +8 dBm 16 dBm Minimum Input Level, ±1 dB Three point calibration at −25 dBm, −10 dBm, and +8 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.2/−0.1 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.2 dB −40°C < TA < +85°C, PIN = −10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = −10 dBm +0.3/−0.4 dB Slope Calibration at −10 dBm and +8 dBm 2.1 V/VPEAK Intercept Calibration at −10 dBm and +8 dBm 0.5 V Output Voltage PIN = +10 dBm 2.2 V PIN = −10 dBm 0.22 V

Rev. E | Page 4 of 23 Parameter Test Conditions/Comments Min Typ1 Max Unit FREQUENCY = 10 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 46 dB Maximum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +10 dBm 16 dBm Minimum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +10 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = 10 dBm +0.2/−0.1 dB −55°C < TA < +125°C, PIN = 10 dBm +0.4/−0.2 dB −40°C < TA < +85°C, PIN = −10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = −10 dBm +0.4/−0.4 dB Slope Calibration at −10 dBm and +10 dBm 2.1 V/VPEAK Intercept Calibration at −10 dBm and +10 dBm 0.6 V Output Voltage PIN = +10 dBm 2.1 V PIN = −10 dBm 0.22 V FREQUENCY = 15 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 47 dB Maximum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +10 dBm 16 dBm Minimum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +10 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.3 dB −40°C < TA < +85°C, PIN = −10 dBm +0.2/−0.3 dB −55°C < TA < +125°C, PIN = −10 dBm +0.3/−0.6 dB Slope Calibration at −10 dBm and +10 dBm 2.1 V/VPEAK Intercept Calibration at −10 dBm and +10 dBm 0.6 V Output Voltage PIN = +10 dBm 2.1 V PIN = −10 dBm 0.22 V FREQUENCY = 20 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 46 dB Maximum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +8 dBm 15 dBm Minimum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +8 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.4 dB −40°C < TA < +85°C, PIN = −10 dBm +0.2/−0.3 dB −55°C < TA < +125°C, PIN = −10 dBm +0.3/−0.6 dB Slope Calibration at −10 dBm and +8 dBm 2.2 V/VPEAK Intercept Calibration at −10 dBm and +8 dBm 0.55 V Output Voltage PIN = +10 dBm 2.3 V PIN = −10 dBm 0.246 V

Rev. E | Page 5 of 23 Parameter Test Conditions/Comments Min Typ1 Max Unit FREQUENCY = 25 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 46 dB Maximum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +8 dBm 15 dBm Minimum Input Level, ±1 dB Three point calibration at −28 dBm, −10 dBm, and +8 dBm −30 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.4 dB −40°C < TA < +85°C, PIN = −10 dBm +0.2/−0.4 dB −55°C < TA < +125°C, PIN = −10 dBm +0.3/−0.7 dB Slope Calibration at −14 dBm and +10 dBm 2.3 V/VPEAK Intercept Calibration at −14 dBm and +10 dBm 0.55 V Output Voltage PIN = +10 dBm 2.36 V PIN = −10 dBm 0.242 V FREQUENCY = 30 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 45 dB Maximum Input Level, ±1 dB Three point calibration at −26 dBm, 0 dBm, and +10 dBm 16 dBm Minimum Input Level, ±1 dB Three point calibration at −26 dBm, 0 dBm, and +10 dBm −29 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.3/−0.2 dB −55°C < TA < +125°C, PIN = +10 dBm +0.4/−0.4 dB −40°C < TA < +85°C, PIN = −10 dBm +0.5/−0.5 dB −55°C < TA < +125°C, PIN = −10 dBm +0.6/−0.8 dB Slope Calibration at 0 dBm and +10 dBm 2.3 V/VPEAK Intercept Calibration at 0 dBm and +10 dBm 0.6 V Output Voltage PIN = +10 dBm 2.2 V PIN = −10 dBm 0.21 V FREQUENCY = 35 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 44 dB Maximum Input Level, ±1 dB Three point calibration at −25 dBm, 0 dBm, and +10 dBm 15 dBm Minimum Input Level, ±1 dB Three point calibration at −25 dBm, 0 dBm, and +10 dBm −29 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.4/−0.4 dB −55°C < TA < +125°C, PIN = +10 dBm +0.5/−0.6 dB −40°C < TA < +85°C, PIN = −10 dBm +0.5/−0.5 dB −55°C < TA < +125°C, PIN = −10 dBm +0.6/−1.6 dB Slope Calibration at 0 dBm and 10 dBm 2.4 V/VPEAK Intercept Calibration at 0 dBm and 10 dBm 0.6 V Output Voltage PIN = +10 dBm 2.3 V PIN = −10 dBm 0.198 V

Rev. E | Page 6 of 23 Parameter Test Conditions/Comments Min Typ1 Max Unit FREQUENCY = 40 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 42 dB Maximum Input Level, ±1 dB Three point calibration at −20 dBm, 0 dBm, and +10 dBm 17 dBm Minimum Input Level, ±1 dB Three point calibration at −20 dBm, 0 dBm, and +10 dBm −25 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.2/−0.2 dB −55°C < TA < +125°C, PIN = +10 dBm +0.3/−0.3 dB −40°C < TA < +85°C, PIN = −10 dBm +0.5/−0.5 dB −55°C < TA < +125°C, PIN = −10 dBm +0.6/−0.9 dB Slope Calibration at 0 dBm and 10 dBm 1.7 V/VPEAK Intercept Calibration at 0 dBm and 10 dBm 0.4 V Output Voltage PIN = +10 dBm 1.64 V PIN = −10 dBm 0.135 V FREQUENCY = 43.5 GHz Input RFIN to output VOUT Detection Range ±1 dB Error CW input 41 dB Maximum Input Level, ±1 dB Three point calibration at −20 dBm, 0 dBm, and +10 dBm 17 dBm Minimum Input Level, ±1 dB Three point calibration at −20 dBm, 0 dBm, and +10 dBm −24 dBm Deviation vs. Temperature Deviation from output at 25°C −40°C < TA < +85°C, PIN = +10 dBm +0.6/−0.4 dB −55°C < TA < +125°C, PIN = +10 dBm +0.7/−0.7 dB −40°C < TA < +85°C, PIN = −10 dBm +0.7/−0.5 dB −55°C < TA < +125°C, PIN = −10 dBm +0.8/−1.1 dB Slope Calibration at 0 dBm and 10 dBm 1.6 V/VPEAK Intercept Calibration at 0 dBm and 10 dBm 0.35 V Output Voltage PIN = +10 dBm 1.46 V PIN = −10 dBm 0.118 V OUTPUT INTERFACE Pin VOUT DC Output Resistance <5 Ω Output Offset PIN = off 4 mV Maximum Output Voltage TA = 25°C, VPOS = 5.0 V, PIN = 19 dBm 4.3 V Available Output Current Sourcing/sinking 5/0.3 mA Rise Time PIN = off to 0 dBm, 10% to 90%, CLOAD = 10 pF ,RSERIES = 100 Ω 4 ns Fall Time PIN = off to 0 dBm, 10% to 90%, CLOAD = 10 pF, RSERIES = 100 Ω 50 ns Envelope Bandwidth 3 dB bandwidth 40 MHz POWER SUPPLIES Pin VPOS Supply Voltage 4.75 5.0 5.25 V Quiescent Current TA = 25°C, no signal at RFIN, VPOS = 5.0 V 1.6 mA

Rev. E | Page 7 of 23 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Rating Supply Voltage, VPOS 5.5 V Input RF Power1 20 dBm Equivalent Voltage, Sine Wave Input 3.16 V Internal Power Dissipation 20 mW θJC2 16.4°C/W θJA2 82.9°C/W ΨJT2 0.6°C/W ΨJB2 49.3°C/W Maximum Junction Temperature 150°C Operating Temperature Range ADL6010ACPZN-R7 −40°C < TA < +85°C ADL6010SCPZN-R7 −55°C < TA < +125°C Storage Temperature Range −65°C to +150°C Lead Temperature (Soldering 60 sec) 300°C Stresses at or above those listed under Absolute Maximum Ratings may cause permanent damage to the product. This is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. Operation beyond the maximum operating conditions for extended periods may affect product reliability. ESD CAUTION 1 Driven from a 50 Ω source. 2 No airflow when the exposed pad soldered to a 4-layer JEDEC board.

1. EXPOSED PAD. THE EXPOSED PAD (EPAD) ON THE UNDERSIDE OF THE DEVICE

6 COMM

4 VPOS

5 VOUT

Figure 2. 6-Lead LFCSP Pin Configuration Figure 3. 6-Pad Bare Die Pin Configuration Table 3. Pin Function Descriptions 2 VOUT Output Voltage. The output from the VOUT pin is proportional to the envelope value at the RFIN pin. capacitor values of 100 pF and 0.1 µF and locate these capacitors as close as possible to the VPOS pin. with the exposed pad (EPAD). 5 RFIN Signal Input. The RFIN pin is ac-coupled and has an RF input impedance of approximately 50 Ω. ground pins to a low impedance ground plane together with the EPAD. 1 Not applicable for the 6-pad bare die.

VPOS = 5.0 V, CLOAD = open, TA = 25°C, unless otherwise specified. Error referred to slope and intercept at indicated calibration points. Single-ended input drive, input RF signal is a continuous sine wave, unless otherwise noted. Figure 4. Typical Output Voltage (VOUT) vs. RF Input Power (PIN) at Various Figure 5. Output Voltage (VOUT) Flatness vs. Frequency for Five RF Input Power Figure 6. Output Voltage (VOUT) vs. RF Input Power (PIN) for Figure 7. Input Return Loss (S11) vs. Input Frequency with Figure 8. Conformance Error and Output Voltage (VOUT) vs.

1.2 SUPPLY CURRENT (mA)

Figure 9. Supply Current vs. RF Input Power (PIN) for Various Temperatures

Rev. E | Page 16 of 23 THEORY OF OPERATION The ADL6010 uses eight Schottky diodes in a novel two path detector topology. One path responds during the positive half cycles of the input, and the second responds during the negative half cycles of the input, thus achieving full wave rectification. This arrangement presents a constant input impedance throughout the full RF cycle, thereby preventing the reflection of even- order distortion components back toward the source, which is a well-known limitation of the widely used traditional single Schottky diode detectors. Eight diodes are arranged on the chip in such a way as to minimize the effect of chip stresses and temperature variations. They are biased by small keep alive currents chosen in a trade-off between the inherently low sensitivity of a diode detector and the need to preserve envelope bandwidth. Thus, the corner frequency of the front-end low-pass filtering is a weak function of the input level. At low input levels, the −3 dB corner frequency is at approximately 0.5 GHz. The overall envelope bandwidth is limited mainly by the subsequent linearizing and output circuitry. At small input levels, all Schottky diode detectors exhibit an extremely weak response which approximates a square law characteristic (having zero slope at the origin). For large inputs, the response approaches a linear transfer function. In the ADL6010, this nonlinearity and variations in the response are corrected using proprietary circuitry having an equally shaped but inverse amplitude function, resulting in an overall envelope response that is linear across the whole span of input levels. The composite signal is buffered and presented at the output pin (VOUT). The transfer function relating the instantaneous RF voltage amplitude to the quasi-dc output is a scalar constant of a little over ×2. This scalar constant is mainly determined by ratios of resistors, which are independent of temperature and process variations. Errors associated with the minuscule voltages generated by the Schottky front-end under low level conditions, and other errors in the nonlinear signal processing circuitry, are minimized by laser trimming, permitting accurate measurement of RF input voltages down to the millivolts level. An aspect of the linear in volts response is that the minimum V OUT is limited by the ability of the output stage to reach down to absolute zero (the potential on the COMM pin) when using a single positive supply. DC voltages at the input are blocked by an on-chip capacitor. The two ground pins (RFCM) on either side of RFIN (Pin 5) form part of an RF coplanar waveguide (CPW) launch into the detector. The RFCM pins must be connected to the signal ground. Give careful attention to the design of the PCB in this area. The envelope voltage gain of the ADL6010 is nominally ×2.2 V/VPEAK from 1 GHz to 35 GHz. This factor becomes

3.2 V/V when the input signal is specified as the rms voltage of

a CW carrier. For example, a steady −30 dBm input generates a dc output voltage of 22.5 mV, at which level the output buffer is able to track the envelope. In fact, the sensitivity at ambient temperatures typically extends below −30 dBm. However, over the specified temperature range, the measurement error tends to increase at the bottom of the specified range. For large inputs, the voltage headroom in the signal processing stages limits the measurement range. Using a 5 V supply, the maximum signal is approximately 3.6 V p-p, corresponding to a power of 15 dBm, referenced to 50 Ω. Therefore, the ADL6010 achieves a 45 dB dynamic range of high accuracy measurement. Note that, above 43.5 GHz, accuracy is limited by the package, PCB, and instrumentation. The RF input interface provides a broadband (flat) 50 Ω termination without the need for external components. Although the input return loss inevitably degrades at very high frequencies, the slope of the transfer function holds near 2.2 V/V PEAK up to 35 GHz, owing to the voltage responding behavior of the ADL6010.

options for the evaluation board are listed in Table 4. Figure 47. ADL6010 Evaluation Board Schematic Table 4. Evaluation Board Configuration Options replaced with a 0 Ω resistor. RF burst response time. The pads of the capacitors are left open by default. ac signal and reducing the noise reaching the input circuitry. The typical value is 0.1 µF. potential damage of the connectors, 2.92 mm (K type) cables are recommended.

0.20 REF

0.05 MAX

0.15 MIN

Figure 50. 6-Lead Lead Frame Chip Scale Package [LFCSP] Figure 51. 6-Pad Bare Die [CHIP]

Rev. E | Page 23 of 23 ORDERING GUIDE Model1 Temperature Range Package Description Package Option Ordering Quantity Marking Code ADL6010ACPZN −40°C to +85°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 1 C1 ADL6010ACPZN-R2 −40°C to +85°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 250 C1 ADL6010ACPZN-R7 −40°C to +85°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 3000 C1 ADL6010SCPZN −55°C to +125°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 1 Q23 ADL6010SCPZN-R2 −55°C to +125°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 250 Q23 ADL6010SCPZN-R7 −55°C to +125°C 6-Lead Lead Frame Chip Scale Package [LFCSP] CP-6-7 3000 Q23 ADL6010-CHIPS −40°C to +85°C 6-Pad Bare Die [CHIP] CP-6-14 50 ADL6010-EVALZ Evaluation Board 1 1 Z = RoHS Compliant Part. ©2014–2020 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D11617-4/20(E)