AD8361

Rev. C | Page 4 of 24

ABSOLUTE MAXIMUM RATINGS

Table 2.

Parameter Rating

Supply Voltage V

5.5 V

SREF, PWDN 0 V, V

IREF V

− 0.3 V, V

RFIN 1 V rms

Equivalent Power, re 50 Ω 13 dBm

Internal Power Dissipation

200 mW

6-Lead SOT-23 170 mW

8-Lead MSOP 200 mW

Maximum Junction Temperature 125°C

Operating Temperature Range −40°C to +85°C

Storage Temperature Range −65°C to +150°C

Lead Temperature Range

(Soldering 60 sec)

300°C

Stresses above those listed under Absolute Maximum Ratings

may cause permanent damage to the device. This is a stress

rating only; functional operation of the device at these or any

other conditions above those indicated in the operational

section of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect

device reliability.

Specification is for the device in free air.

6-Lead SOT-23: θ

= 230°C/W; θ

= 92°C/W.

8-Lead MSOP: θ

= 200°C/W; θ

= 44°C/W.

ESD CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on

the human body and test equipment and can discharge without detection. Although this product features

proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy

electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance

degradation or loss of functionality.

AD8361

Rev. C | Page 5 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VPOS

IREF

RFIN

PWDN

SREF

VRMS

FLTR

COMM

AD8361

TOP VIEW

(Not to Scale)

01088-C-004

Figure 4. 8-Lead MSOP

VRMS

COMM

FLTR

VPOS

RFIN

PWDN

AD8361

TOP VIEW

(Not to Scale)

01088-C-005

Figure 5. 6-Lead SOT-23

Table 3. Pin Function Descriptions

Pin No.

MSOP

Pin No.

SOT-23 Mnemonic Description

1 6 VPOS Supply Voltage Pin. Operational range 2.7 V to 5.5 V.

2 N/A IREF

Output Reference Control Pin. Internal reference mode enabled when pin is left open; otherwise, this

pin should be tied to VPOS. Do not ground this pin.

3 5 RFIN

Signal Input Pin. Must be driven from an ac-coupled source. The low frequency real input impedance

is 225 Ω.

4 4 PWDN

Power-Down Pin. For the device to operate as a detector, it needs a logical low input (less than

100 mV). When a logic high (greater than V

− 0.5 V) is applied, the device is turned off and the supply

current goes to nearly zero (ground and internal reference mode less than 1 µA, supply reference

mode V

divided by 100 kΩ).

5 2 COMM Device Ground Pin.

6 3 FLTR

By placing a capacitor between this pin and VPOS, the corner frequency of the modulation filter is

lowered. The on-chip filter is formed with 27 pF||2 kΩ for small input signals.

7 1 VRMS

Output Pin. Near rail-to-rail voltage output with limited current drive capabilities. Expected load

>10 kΩ to ground.

8 N/A SREF

Supply Reference Control Pin. To enable supply reference mode, this pin must be connected to VPOS;

otherwise, it should be connected to COMM (ground).

AD8361

Rev. C | Page 6 of 24

TYPICAL PERFORMANCE CHARACTERISTICS

INPUT (V rms)

2.8

2.6

0.8

0.50.1 0.2 0.3 0.4

2.0

1.4

1.2

1.0

2.4

2.2

1.6

1.8

OUTPUT (V)

0.6

0.4

0.2

0.0

900MHz

100MHz

1900MHz

2.5GHz

01088-C-006

Figure 6. Output vs. Input Level, Frequencies 100 MHz, 900 MHz,

1900 MHz, and 2500 MHz, Supply 2.7 V, Ground Reference Mode, MSOP

INPUT (V rms)

5.5

1.5

0.50.1 0.2 0.3 0.4

4.0

3.0

2.5

2.0

5.0

4.5

3.5

OUTPUT (V)

1.0

0.5

0.0

5.5V

5.0V

3.0V

2.7V

0.6 0.7 0.8

01088-C-007

Figure 7. Output vs. Input Level,

Supply 2.7 V, 3.0 V, 5.0 V, and 5.5 V, Frequency 900 MHz

INPUT (V rms)

5.0

1.5

0.50.1 0.2 0.3 0.4

4.0

3.0

2.5

2.0

4.5

3.5

OUTPUT (V)

1.0

0.5

0.0

0.6 0.7 0.8

IS95

REVERSE LINK

WCDMA

4- AND 15-CHANNEL

01088-C-008

Figure 8. Output vs. Input Level with

Different Waveforms Sine Wave (CW), IS95 Reverse Link,

W-CDMA 4-Channel and W-CDMA 15-Channel, Supply 5.0 V

INPUT (V rms)

3.0

2.5

–1.0

0.4

(+5dBm)

0.01

1.5

–0.5

2.0

0.5

1.0

ERROR (dB)

–1.5

–2.0

–2.5

–3.0

0.1

(–7dBm)

0.02

(–21dBm)

MEAN ±3 SIGMA

01088-C-009

Figure 9. Error from Linear Reference vs. Input Level, 3 Sigma to Either Side of

Mean, Sine Wave, Supply 3.0 V, Frequency 900 MHz

INPUT (V rms)

3.0

2.5

–1.0

0.6

(+8.6dBm)

0.01

1.5

–0.5

2.0

0.5

1.0

ERROR (dB)

–1.5

–2.0

–2.5

–3.0

0.10.02

MEAN ±3 SIGMA

(–7dBm)(–21dBm)

01088-C-010

Figure 10. Error from Linear Reference vs. Input Level, 3 Sigma to Either Side

of Mean, Sine Wave, Supply 5.0 V, Frequency 900 MHz

INPUT (V rms)

3.0

2.5

–1.0

1.00.01 0.1

1.5

0.0

–0.5

2.0

0.5

1.0

ERROR (dB)

–1.5

–2.0

–2.5

–3.0

0.02 0.6

0.2

IS95

REVERSE LINK

15-CHANNEL

4-CHANNEL

01088-C-011

Figure 11. Error from CW Linear Reference vs. Input with Different Waveforms

Sine Wave (CW), IS95 Reverse Link, W-CDMA 4-Channel and

W-CDMA 15-Channel, Supply 3.0 V, Frequency 900 MHz

Part #	AD8361ARMZ
Description	MINSO DC-2.5GHZ TRUE PWR DETECTOR/CNTRLR
Category	IC
Availability	In Stock
Qty	15

Qty	Price
1 - 3	$5.79943
4 - 6	$4.61319
7 - 9	$4.34957
10 - 12	$4.04203
13 +	$3.60268

AD8361ARMZ

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Technical Document