lt5581 Linear Technology Corporation, lt5581 Datasheet - Page 5

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

TYPICAL PERFORMANCE CHARACTERISTICS
EN = 3.3V and T
1.0
2.0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
1.0
1.0
2.0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2.0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
0
0
0
–40
–40
–40
Output Voltage vs Frequency
Output Voltage and Linearity Error
at 450MHz
Output Voltage and Linearity Error
at 880MHz
T
A
–35
–35
–35
= 25°C
–30
–30
10MHz
450MHz
880MHz
2.14GHz
2.6GHz
3.5GHz
5.8GHz
–30
25°C
85°C
– 40°C
25°C
85°C
– 40°C
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
–25
–25
–25
A
= 25°C, unless otherwise noted. (Test circuit shown in Figure 1)
–20
–20
–20
–15
–15
–15
–10
–10
–10
–5
–5
–5
0
0
0
5581 G01
5581 G04
5581 G07
5
5
5
10
10
10
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
1.0
2.0
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
–3
–1
–2
–3
–1
–2
0
3
1
2
1
0
2
0
3
–40
–40
–40
Output Voltage vs Frequency
Linearity Error Temperature
Variation from 25°C at 450MHz
Linearity Error Temperature
Variation from 25°C at 880MHz
T
A
–35
–35
–35
= 25°C
–30
–30
–30
880MHz
2.14GHz
2.6GHz
3.5GHz
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
–25
–25
–25
–20
–20
–20
–15
–15
–15
–10
–10
–10
–5
–5
–5
–40°C
–40°C
85°C
85°C
0
0
0
Performance characteristics taken at V
5581 G08
5581 G02
5581 G05
5
5
5
10
10
10
–1
–2
–3
–1
–2
–1
–2
–3
–3
3
2
1
0
2
1
0
2
1
0
3
–40
3
–35
–35
Linearity Error vs Frequency
Linearity Error vs RF Input Power,
450MHz Modulated Waveforms
Linearity Error vs RF Input Power,
880MHz Modulated Waveforms
T
T
A
–35
A
–30
–30
= 25°C
= 25°C
–30
10MHz
450MHz
880MHz
2.14GHz
2.6GHz
3.5GHz
5.8GHz
CW
EDGE
CW
TETRA
CDMA 4C
–25
–25
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
RF INPUT POWER (dBm)
–25
–20
–20
–20
–15
–15
–15
–10
–10
–10
LT5581
–5
–5
CC
–5
= 3.3V,
T
0
0
0
A
= 25°C
5581 G03
5581 G09
5581 G06
5
5
5
5
5581f
10
10
10