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參數(shù)資料
| 型號： | AD8310ARM |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LOGARITHMIC AMP 95DB 8-MSOP |
| 標準包裝： | 50 |
| 類型： | 對數(shù)放大器 |
| 應用： | 接收器信號強度指示（RSSI） |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-MSOP |
| 包裝： | 管件 |
AD8310
Rev. F | Page 3 of 24
SPECIFICATIONS
TA = 25°C, VS = 5 V, unless otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
INPUT STAGE
Inputs INHI, INLO
Maximum Input1
Single-ended, p-p
±2.0
±2.2
V
4
dBV
Equivalent Power in 50 Ω
Termination resistor of 52.3 Ω
17
dBm
Differential drive, p-p
20
dBm
Noise Floor
Terminated 50 Ω source
1.28
nV/√Hz
Equivalent Power in 50 Ω
440 MHz bandwidth
78
dBm
Input Resistance
From INHI to INLO
800
1000
1200
Ω
Input Capacitance
From INHI to INLO
1.4
pF
DC Bias Voltage
Either input
3.2
V
LOGARITHMIC AMPLIFIER
Output VOUT
±3 dB Error Dynamic Range
From noise floor to maximum input
95
dB
Transfer Slope
10 MHz ≤ f ≤ 200 MHz
22
24
26
mV/dB
Overtemperature, 40°C < TA < +85°C
20
26
mV/dB
Intercept (Log Offset)2
10 MHz ≤ f ≤ 200 MHz
115
108
99
dBV
Equivalent dBm (re 50 Ω)
102
95
86
dBm
Overtemperature, 40°C ≤ TA ≤ +85°C
120
96
dBV
Equivalent dBm (re 50 Ω)
107
83
dBm
Temperature sensitivity
0.04
dB/°C
Linearity Error (Ripple)
Input from 88 dBV (75 dBm) to +2 dBV (+15 dBm)
±0.4
dB
Output Voltage
Input = 91 dBV (78 dBm)
0.4
V
Input = 9 dBV (22 dBm)
2.6
V
Minimum Load Resistance, RL
100
Ω
Maximum Sink Current
0.5
mA
Output Resistance
0.05
Ω
Video Bandwidth
25
MHz
Rise Time (10% to 90%)
Input level = 43 dBV (30 dBm), RL ≥ 402 Ω, CL ≤ 68 pF
15
ns
Input level = 3 dBV (+10 dBm), RL ≥ 402 Ω, CL ≤ 68 pF
20
ns
Fall Time (90% to 10%)
Input level = 43 dBV (30 dBm), RL ≥ 402 Ω, CL ≤ 68 pF
30
ns
Input level = 3 dBV (+10 dBm), RL ≥ 402 Ω, CL ≤ 68 pF
40
ns
Output Settling Time to 1%
Input level = 13 dBV (0 dBm), RL ≥ 402 Ω, CL ≤ 68 pF
40
ns
POWER INTERFACES
Supply Voltage, VPOS
2.7
5.5
V
Quiescent Current
Zero signal
6.5
8.0
9.5
mA
Overtemperature
40°C < TA < +85°C
5.5
8.5
10
mA
Disable Current
0.05
μA
Logic Level to Enable Power
High condition, 40°C < TA < +85°C
2.3
V
Input Current When High
3 V at ENBL
35
μA
Logic Level to Disable Power
Low condition, 40°C < TA < +85°C
0.8
V
1 The input level is specified in dBV, because logarithmic amplifiers respond strictly to voltage, not power. 0 dBV corresponds to a sinusoidal single-frequency input of
1 V rms. A power level of 0 dBm (1 mW) in a 50 Ω termination corresponds to an input of 0.2236 V rms. Therefore, the relationship between dBV and dBm is a fixed
offset of 13 dBm in the special case of a 50 Ω termination.
2 Guaranteed but not tested; limits are specified at six sigma levels.
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