AD8367ARUZ Analog Devices Inc, AD8367ARUZ Datasheet

AD8367ARUZ

Manufacturer Part Number

AD8367ARUZ

Description

IC AMP VGA 14TSSOP

Manufacturer

Analog Devices Inc

Series

X-AMP®r

Datasheets

1.AD8367-EVAL.pdf (24 pages)

2.AD8367ARUZ.pdf (6 pages)

Specifications of AD8367ARUZ

Amplifier Type

Variable Gain

Number Of Circuits

-3db Bandwidth

500MHz

Current - Input Bias

27µA

Current - Supply

26mA

Voltage - Supply, Single/dual (±)

2.7 V ~ 5.5 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

14-TSSOP

No. Of Amplifiers

Bandwidth

500MHz

No. Of Channels

Supply Voltage Range

2.7V To 5.5V

Amplifier Case Style

TSSOP

No. Of Pins

Operating Temperature Range

-40Â°C To +85Â°C

Current, Input Bias

27 μA

Current, Supply

26 mA

Package Type

TSSOP-14

Power Dissipation

250 mW

Resistance, Input

200 Ohms

Temperature, Operating, Range

-40 to +85 °C

Voltage, Input

±600 mV

Voltage, Output Swing

3.5 Vp-p

Voltage, Supply

2.7 to 5.5 V

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Output Type

Current - Output / Channel

Slew Rate

Gain Bandwidth Product

Voltage - Input Offset

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

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Price

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Part Number:

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Manufacturer:

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8367ARUZ-REEL7

Manufacturer:

ADI/亚德诺

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Company:

Meier Automation Equipment Co., Limited

Part Number:

AD8367ARUZ-RL7

Manufacturer:

ADI/亚德诺

Quantity:

20 000

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Download datasheet (601Kb)

FEATURES

Broad-range analog variable gain: −2.5 dB to +42.5 dB

3 dB cutoff frequency of 500 MHz

Gain up and gain down modes

Linear-in-dB, scaled 20 mV/dB

Resistive ground referenced input

Nominal Z

On-chip, square-law detector

Single-supply operation: 2.7 V to 5.5 V

APPLICATIONS

Cellular base stations

Broadband access

Power amplifier control loops

Complete, linear IF AGC amplifiers

High speed data I/O

GENERAL DESCRIPTION

The AD8367 is a high performance 45 dB variable gain

amplifier with linear-in-dB gain control for use from low

frequencies up to several hundred megahertz. The range,

flatness, and accuracy of the gain response are achieved using

Analog Devices’ X-AMP® architecture, the most recent in a

series of powerful proprietary concepts for variable gain

applications, which far surpasses what can be achieved using

competing techniques.

The input is applied to a 9-stage, 200 Ω resistive ladder network.

Each stage has 5 dB of loss, giving a total attenuation of 45 dB.

At maximum gain, the first tap is selected; at progressively

lower gains, the tap moves smoothly and continuously toward

higher attenuation values. The attenuator is followed by a

42.5 dB fixed gain feedback amplifier—essentially an

operational amplifier with a gain bandwidth product of

100 GHz—and is very linear, even at high frequencies. The

output third order intercept is +20 dBV at 100 MHz (+27 dBm,

re 200 Ω), measured at an output level of 1 V p-p with V

Rev. A

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.

= 200 Ω

= 5 V.

The analog gain-control input is scaled at 20 mV/dB and runs

from 50 mV to 950 mV. This corresponds to a gain of −2.5 dB

to +42.5 dB, respectively, when the gain up mode is selected and

+42.5 dB to −2.5 dB, respectively, when gain down mode is

selected. The gain down, or inverse, mode must be selected

when operating in AGC in which an integrated square-law

detector with an internal setpoint is used to level the output to

354 mV rms, regardless of the crest factor of the output signal.

A single external capacitor sets up the loop averaging time.

The AD8367 can be powered on or off by a voltage applied to

the ENBL pin. When this voltage is at a logic LO, the total

power dissipation drops to the milliwatt range. For a logic HI,

the chip powers up rapidly to its normal quiescent current of

26 mA at 25°C. The AD8367 is available in a 14-lead TSSOP

package for the industrial temperature range of −40°C to +85°C.

ICOM

INPT

500 MHz, Linear-in-dB VGA

CELLS

AD8367

FUNCTIONAL BLOCK DIAGRAM

9-STAGE ATTENUATOR BY 5dB

GAUSSIAN INTERPOLATOR

MODE

VPSI

with AGC Detector

Figure 1.

VPSO

GAIN

BIAS

DETECTOR

AD8367

SQUARE

ENBL

LAW

DETO

ICOM

DECL

HPFL

VOUT

OCOM

Related parts for AD8367ARUZ

AD8367ARUZ Summary of contents

Page 1

FEATURES Broad-range analog variable gain: −2 +42 cutoff frequency of 500 MHz Gain up and gain down modes Linear-in-dB, scaled 20 mV/dB Resistive ground referenced input Nominal Z = 200 Ω IN On-chip, square-law detector ...

Page 2

SPECIFICATIONS 25°C, system impedance Table 1. Parameter OVERALL FUNCTION Frequency Range GAIN Range INPUT STAGE Maximum Input Input Resistance GAIN CONTROL INTERFACE Scaling Factor Gain Law Conformance Maximum Gain Minimum Gain ...

Page 3

AD8367 Parameter f = 140 MHz Gain Gain Scaling Factor Gain Intercept Noise Figure Output IP3 Output 1 dB Compression Point f = 190 MHz Gain Gain Scaling Factor Gain Intercept Noise Figure Output IP3 Output 1 dB Compression Point ...

Page 4

ABSOLUTE MAXIMUM RATINGS Table 2. Parameter Supply Voltage VPSO, VPSI ENBL Voltage MODE Select Voltage V Control Voltage GAIN Input Voltage Internal Power Dissipation θ JA Maximum Junction Temperature Operating Temperature Range Storage Temperature Range Lead Temperature Range (Soldering 60 ...

Page 5

AD8367 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 3. Pin Function Descriptions Pin No. Mnemonic Description ICOM Signal Common. Connect to low impedance ground. 2 ENBL A HI Activates the Device. 3 INPT Signal Input. 200 Ω to ...

Page 6

... PIN 1 1.05 1.00 0.80 ORDERING GUIDE Model Temperature Range AD8367ARU −40°C to +85°C AD8367ARU-REEL-7 −40°C to +85°C 1 AD8367ARUZ −40°C to +85°C AD8367ARUZ-RL7 1 −40°C to +85°C AD8367-EVAL Pb-free part. 5.10 5.00 4. 6.40 BSC 1 7 0.65 BSC ...

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