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| 型號(hào)： | AD8370ARE-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | LF to 750 MHz Digitally Controlled VGA |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | MO-153ABT, TSSOP-16 |
| 文件頁(yè)數(shù)： | 24/28頁(yè) |
| 文件大小： | 1043K |
| 代理商： | AD8370ARE-REEL7 |
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AD8370
APPENDIX
CHARACTERIZATION EQUIPMENT
An Agilent N4441A Balanced Measurement System was used to
obtain the gain, phase, group delay, reverse isolation, CMRR,
and s-parameter information contained in this data sheet. With
the exception for the s-parameter information, T-attenuator
pads were used to match the 50 impedance of this instrument’s
ports to the AD8370. An Agilent 4795A Spectrum Analyzer was
used to obtain nonlinear measurements IMD, IP3, and P1dB
through matching baluns and/or attenuator networks. Various
other measurements were taken with setups shown in this
section.
Rev. 0 | Page 24 of 28
COMPOSITE WAVEFORM ASSUMPTION
The nonlinear two-tone measurements made for this data sheet,
i.e., IMD and IP3, are based on the assumption of a fixed value
composite waveform at the output, generally 1 V p-p. The fre-
quencies of interest dictate the use of RF test equipment, and
because this equipment is generally not designed to work in
units of volts, but rather watts and dBm, an assumption was
made to facilitate equipment setup and operation. Two sinusoidal
tones can be represented as
V
1
= V sin
(2
∏
f
1
t
)
V
2
= V sin
(2
∏
f
2
t
)
The RMS average voltage of one tone is
2
1
)
(
1
T
2
0
=
∫
dt
V
T
1
where
T
is the period of the waveform. The RMS average
voltage of the two-tone composite signal is
1
)
(
1
T
2
0
=
+
∫
dt
V
V
2
T
1
It can be shown that the average power of this composite
waveform is twice (3 dB) that of the single tone. This also means
that the composite peak-to-peak voltage is twice (6 dB) that of a
single tone. This principle can be used to set correct input
amplitudes from generators scaled in dBm and is correct if the
two tones are of equal amplitude and are reasonably close in
frequency.
DEFINITIONS OF SELECTED PARAMETERS
Common-mode rejection ratio (Figure 26) has been defined for
this characterization effort as
Gain
Mode
Common
Gain
Mode
al
Differenti
where the numerator is the gain into a differential load at the
output due to a differential source at the input, and the
denominator is the gain into a differential-mode load at the
output due to a common-mode source at the input. In terms of
mixed-mode s-parameters, this equates to
SDC21
SDD21
More information on mixed-mode s-parameters can be
obtained in a reference by Bockelman, D.E. and Eisenstadt,
W.R.,
Combined Differential and Common-Mode Scattering
Parameters: Theory and Simulation
. IEEE Transactions on
Microwave Theory and Techniques, v 43, n 7, 1530 (July 1995).
Reverse isolation (Figure 24) is defined as SDD12.
Power supply rejection ratio (PSRR) has been defined as
s
dm
A
A
where
A
dm
is the differential mode forward gain (SDD21), and
A
s
is the gain from the power supply pins (VCCI and VCCO,
taken together) to the output (OPLO and OPHI, taken differen-
tially), corrected for impedance mismatch. The following
reference provides more information: Gray, P.R., Hurst, P.J.,
Lewis, S.H. and Meyer, R.G.,
Analysis and Design of Analog
Integrated Circuits
,
4
th
Edition
, John Wiley & Sons, Inc., page 422.
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| AD8370AREZ | 功能描述:IC AMP VGA DIFF LN 16TSSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD8370AREZ | 制造商:Analog Devices 功能描述:IC VARIABLE GAIN AMP 750MHZ TSSOP-16 制造商:Analog Devices 功能描述:IC, VARIABLE GAIN AMP, 750MHZ, TSSOP-16 |
| AD8370AREZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:LF to 750 MHz, Digitally Controlled VGA |
| AD8370AREZ-RL7 | 功能描述:IC AMP VGA DIFF LN 16TSSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:150 系列:- 放大器類型:音頻 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:5 V/µs 增益帶寬積:12MHz -3db帶寬:- 電流 - 輸入偏壓:100nA 電壓 - 輸入偏移:500µV 電流 - 電源:6mA 電流 - 輸出 / 通道:50mA 電壓 - 電源，單路/雙路(±):4 V ~ 32 V，±2 V ~ 16 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:8-TSSOP 包裝:管件 |
| AD8370-EVAL | 制造商:Analog Devices 功能描述:AD8370 EVAL BOARD - Bulk |
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