ATF35143 datasheet(3/19 Pages) HP

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Figure 5. Block diagram of 2 GHz production test board used for Noise Figure, Associated Gain, P1dB, and OIP3 measure-

ments. This circuit represents a trade-off between an optimal noise match and a realizable match based on production test

requirements. Circuit losses have been de-embedded from actual measurements.

Input

50 Ohm

Transmission

Line Including

Gate Bias T

(0.5 dB loss)

Input

Matching Circuit

Γ_mag = 0.66

Γ_ang = 5°

(0.4 dB loss)

DUT

50 Ohm

Transmission

Line Including

Drain Bias T

(0.5 dB loss)

Output

ATF-35143 Electrical Specifications

TA = 25°C, RF parameters measured in a test circuit for a typical device

Symbol

Parameters and Test Conditions

Units

Min.

Typ.[2]

Max.

Idss[1]

Saturated Drain Current

VDS = 1.5 V, VGS = 0 V

VP[1]

Pinchoff Voltage

VDS = 1.5 V, IDS = 10% of Idss

-0.65

-0.5

- 0.35

Quiescent Bias Current

VGS = 0.45 V, VDS = 2 V

—

gm[1]

Transconductance

VDS = 1.5 V, gm = Idss /VP

mmho

120

—

IGDO

Gate to Drain Leakage Current

VGD = 5 V

µA

250

Igss

Gate Leakage Current

VGD = VGS = -4 V

µA

—

150

f = 2 GHz

VDS = 2 V, IDS = 15 mA

0.4

0.7

Noise Figure[3]

VDS = 2 V, IDS = 5 mA

0.5

0.9

f = 900 MHz

VDS = 2 V, IDS = 15 mA

0.3

VDS = 2 V, IDS = 5 mA

0.4

f = 2 GHz

VDS = 2 V, IDS = 15 mA

16.5

19.5

Associated Gain[3]

VDS = 2 V, IDS = 5 mA

f = 900 MHz

VDS = 2 V, IDS = 15 mA

VDS = 2 V, IDS = 5 mA

Output 3rd Order

f = 2 GHz

VDS = 2 V, IDS = 15 mA

dBm

OIP3

Intercept Point[4, 5]

VDS = 2 V, IDS = 5 mA

f = 900 MHz

VDS = 2 V, IDS = 15 mA

dBm

VDS = 2 V, IDS = 5 mA

1 dB Compressed

f = 2 GHz VDS = 2 V, IDSQ = 15 mA

dBm

P1dB

Intercept Point[4]

VDS = 2 V, IDSQ = 5 mA

f = 900 MHz VDS = 2 V, IDSQ = 15 mA

dBm

VDS = 2 V, IDSQ = 5 mA

Notes:

1. Guaranteed at wafer probe level

2. Typical value determined from a sample size of 450 parts from 9 wafers.

3. 2 V 5 mA min/max data guaranteed via the 2 V 15 mA production test.

4. Measurements obtained using production test board described in Figure 5.

5. Pout = -10 dBm per tone

88759/05-4.PM6.5J

2001.04.26, 9:16 AM

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