AD8306 datasheet(4/16 Pages) AD

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REV. A

AD8306

–4–

ENABLE VOLTAGE – V

100

0.5

0.1

0.01

0.001

0.0001

0.00001

0.7

0.9

1.1

1.3

1.5

1.7

1.9

2.1

2.3

2.5

TA = +25 C

TA = +85 C

TA = –40 C

Figure 1. Supply Current vs. Enable Voltage @

TA = –40°C, +25°C and +85°C

RLIM –

100

150

200

250

300

350

400

450

ADDITIONAL SUPPLY CURRENT

LIMITER OUTPUT

CURRENT

Figure 2. Additional Supply Current and Limiter Output

Current vs. RLIM

500mV PER

VERTICAL

DIVISION

2V PER

VERTICAL

DIVISION

VLOG

GROUND REFERENCE

INPUT

100ns PER HORIZONTAL DIVISION

Figure 3. Large Signal RSSI Pulse Response with

CL = 100 pF and RL = 50 Ω and 75 Ω (Curves Overlap)

–Typical Performance Characteristics

500mV PER

VERTICAL

DIVISION

GROUND REFERENCE

INPUT

1V PER

VERTICAL

DIVISION

100ns PER HORIZONTAL DIVISION

INPUT LEVEL

SHOWN IS –3dBV

VLOG

Figure 4. RSSI Pulse Response for Inputs Stepped from

Zero to –83 dBV, –63 dBV, –43 dBV, –23 dBV, –3 dBV

500mV PER

VERTICAL

DIVISION

100ns PER HORIZONTAL DIVISION

INPUT

2V PER

VERTICAL

DIVISION

GROUND REFERENCE

VLOG

Figure 5. Large Signal RSSI Pulse Response with RL = 100 Ω

and CL = 33 pF, 100 pF and 330 pF (Overlapping Curves)

200mV PER

VERTICAL

DIVISION

GROUND REFERENCE

100 s PER HORIZONTAL DIVISION

270pF

27pF

3300pF

VLOG

Figure 6. Small Signal AC Response of RSSI Output with

External Filter Capacitance of 27 pF, 270 pF and 3300 pF

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