AD8367-EVAL datasheet(2/16 Pages) AD

Teilenummer	AD8367-EVAL

Bauteilbeschribung	500 MHz, Linear-in-dB VGA with AGC Detector

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Hersteller	AD [Analog Devices]

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REV. 0

–2–

AD8367–SPECIFICATIONS

(VS = 5 V, TA = 25 C, System Impedance ZO = 200

, VMODE = 5 V, f = 10 MHz,

unless otherwise noted.)

Parameter

Conditions

Min

Typ

Max

Unit

OVERALL FUNCTION

Frequency Range

LF

500

MHz

GAIN Range

45

dB

INPUT STAGE

Pins INPT and ICOM

Maximum Input

To Avoid Input Overload

700

mV p-p

Input Resistance

From INPT to ICOM

175

200

225

Ω

GAIN CONTROL INTERFACE

Pin GAIN

Scaling Factor

VMODE = 5 V, 50 mV

≤ VGAIN ≤ 950 mV

+20

mV/dB

VMODE = 0 V, 50 mV

≤ V

GAIN

≤ 950 mV

–20

mV/dB

Gain Law Conformance

100 mV

≤ VGAIN ≤ 900 mV

±0.2

dB

Maximum Gain

VGAIN = 0.95 V

+42.5

dB

Minimum Gain

VGAIN = 0.05 V

–2.5

dB

VGAIN Step Response

From 0 dB to 30 dB

300

ns

From 30 dB to 0 dB

300

ns

Small Signal Bandwidth

VGAIN = 0.5 V

5

MHz

OUTPUT STAGE

Pin VOUT

Max Output Voltage Swing

RL = 1 k

Ω

4.3

V p-p

RL = 200

Ω

3.5

V p-p

Output Source Resistance

Series Resistance of Output Buffer

50

Ω

Output Centering Voltage1

VS/2

V

SQUARE LAW DETECTOR

Pin DETO

Output Set Point

354

mV rms

AGC Small Signal Response Time

CAGC

100 pF, 6 dB Gain Step

1

s

POWER INTERFACE

Pins VPSI, VPSO, ICOM, and OCOM

Supply Voltage

2.7

5.5

V

Total Supply Current

ENBL High, Maximum Gain, RL

200

Ω

26

30

mA

(Includes Load Current)

Disable Current vs. Temperature

ENBL Low

1.3

1.6

mA

–40

°C ≤ T

A

≤ +85°C

1.8

mA

MODE CONTROL INTERFACE

Pin MODE

Mode LO Threshold

Device in Negative Slope Mode of Operation

1.2

V

Mode HI Threshold

Device in Positive Slope Mode of Operation

1.4

V

ENABLE INTERFACE

Pin ENBL

Enable Threshold

2.5

V

Enable Response Time

Time Delay Following LO to HI Transition

1.5

s

until Device Meets Full Specifications.

Enable Input Bias Current

ENBL at 5 V

27

A

ENBL at 0 V

32

nA

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