AD8315 datasheet(2/20 Pages) AD

2 / 20 page

REV. B

–2–

AD8315–SPECIFICATIONS (V

S = 2.7 V, T = 25 C, 52.3

termination on RFIN, unless otherwise noted.)

Parameter

Conditions

Min

Typ

Max

Unit

OVERALL FUNCTION

Frequency Range

To Meet All Specifications

0.1

2.5

GHz

Input Voltage Range

±1 dB Log Conformance, 0.1 GHz

–57

–11

dBV

Equivalent dBm Range

–44

dBm

Logarithmic Slope

0.1 GHz

21.5

25.5

mV/dB

Logarithmic Intercept

0.1 GHz

–79

–70

–64

dBV

Equivalent dBm Level

–66

–57

–51

dBm

RF INPUT INTERFACE

Pin RFIN

Input Resistance

0.1 GHz

2.8

Input Capacitance

0.1 GHz

0.9

OUTPUT

Pin VAPC

Minimum Output Voltage

VSET

£ 200 mV, ENBL High

0.25

0.27

0.3

ENBL Low

0.02

Maximum Output Voltage

≥ 800 W

2.45

2.6

vs. Temperature

∞C, VPOS =3 V, IOUT =6 mA

2.54

General Limit

2.7 V

£ VPOS £ 5.5 V, RL = •

VPOS – 0.1

Output Current Drive

Source/Sink

5/200

mA/

Output Buffer Noise

÷Hz

Output Noise

RF Input = 2 GHz, 0 dBm, fNOISE = 100 kHz,

130

nV/

÷Hz

CFLT = 220 pF

Small Signal Bandwidth

0.2 V to 2.6 V Swing

MHz

Slew Rate

10%–90%, 1.2 V Step (VSET), Open Loop

Response Time

FLTR = Open, Refer to TPC 24

150

SETPOINT INTERFACE

Pin VSET

Nominal Input Range

Corresponding to Central 50 dB

0.25

1.4

Logarithmic Scale Factor

43.5

dB/V

Input Resistance

100

Slew Rate

ENABLE INTERFACE

Pin ENBL

Logic Level to Enable Power

1.8

VPOS

Input Current when Enable High

Logic Level to Disable Power

0.8

Enable Time

Time from ENBL High to VAPC within 1% of

Final Value, VSET

£ 200 mV, Refer to TPC 21

Disable Time

Time from ENBL Low to VAPC within 1% of

Final Value, VSET

£ 200 mV, Refer to TPC 21

Power-On/Enable Time

Time from VPOS/ENBL High to VAPC within

1% of Final Value, VSET

£ 200 mV, Refer to

TPC 26

Time from VPOS/ENBL Low to VAPC within

100

200

1% of Final Value, VSET

£ 200 mV, Refer to

TPC 26

POWER INTERFACE

Pin VPOS

Supply Voltage

2.7

5.5

Quiescent Current

ENBL High

8.5

10.7

Over Temperature

–30

∞C £ TA £ +85∞C12.9

Disable Current

ENBL Low

Over Temperature

–30

∞C £ TA £ +85∞C13

NOTES

1Operation down to 0.02 GHz is possible.

2Mean and Standard Deviation specifications are available in Table I.

3See TPC 9 for plot of Input Impedance vs. Frequency.

4This parameter is guaranteed but not tested in production. Limit is –3 sigma from the mean.

5Response time in a closed-loop system will depend upon the filter capacitor (C

FLT) used and the response of the variable gain element.

6This parameter is guaranteed but not tested in production. Maximum specified limit on this parameter is the +6 sigma value.

Specifications subject to change without notice.

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