lt5581 Linear Technology Corporation, lt5581 Datasheet - Page 7

• Manufacturer Part Number: lt5581
• Description: 6ghz Rms Power Detector With 40db Dynamic Range
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
1.0
2.0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
34
32
30
28
26
0
–40
0
Output Voltage and Linearity Error
at 5800MHz
Slope vs Frequency
T
A
–35
= 25°C
1
–30
RF INPUT POWER (dBm)
–25
FREQUENCY (GHz)
2
–20
–15
3
–30
–35
–40
–45
–50
–10
0
Logarithmic Intercept
vs Frequency
T
4
A
–5
= 25°C
1
0
25°C
85°C
– 40°C
5
5581 G19
5581 G22
5
FREQUENCY (GHz)
2
10
6
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
3
4
50
40
30
20
10
–1
–2
–3
0
2
1
0
3
–40
5
Linearity Error Temperature
Variation from 25°C at 5800MHz
Slope Distribution vs Temperature
28
5581 G25
–35
T
T
T
A
A
A
= –40°C
= 25°C
= 85°C
6
–30
29
RF INPUT POWER (dBm)
–25
30
SLOPE (mV/dB)
–20
–15
31
–10
32
–5
50
40
30
20
10
0
33
–40°C
0
85°C
–48
Logarithmic Intercept Distribution
vs Temperature
5581 G20
5581 G23
5
T
T
T
A
A
A
34
–47 –46 –45 –44 –43
= –40°C
= 25°C
= 85°C
LOGARITHMIC INTERCEPT (dBm)
10
0.8
2.0
1.8
1.6
1.4
1.2
1.0
–1
–2
–3
2
1
0
3
–35
2.6
Linearity Error vs RF Input Power,
5.8GHz Modulated Waveforms
Supply Current vs Supply Voltage
–30
3
CW
WiMax OFDM BURST
–25
RF INPUT POWER (dBm)
3.4
SUPPLY VOLTAGE (V)
–20
–42
3.8
–15
5581 G26
–40°C
85°C
25°C
–41
–10
4.2
LT5581
–5
4.6
T
0
A
= 25°C
5
5581 G21
5581 G24
5
7
5581f
10
5.4