参数资料
| 型号： | AD8366ACPZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC DUAL AMP VGA 32LFCSP |
| 标准包装： | 1 |
| 放大器类型： | 可变增益 |
| 电路数： | 2 |
| 输出类型： | 差分 |
| 转换速率： | 1100 V/µs |
| -3db带宽： | 600MHz |
| 电流 - 电源： | 180mA |
| 电压 - 电源，单路/双路(±)： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 32-LFCSP-VQ |
| 包装： | 标准包装 |
| 其它名称： | AD8366ACPZ-R7DKR |
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DC to 600 MHz,
Dual-Digital Variable Gain Amplifiers
AD8366
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2010-2011 Analog Devices, Inc. All rights reserved.
FEATURES
Matched pair of differential, digitally controlled VGAs
Gain range: 4.5 dB to 20.25 dB
0.25 dB gain step size
Operating frequency
DC to 150 MHz (2 V p-p)
3 dB bandwidth: 600 MHz
Noise figure (NF)
11.4 dB at 10 MHz at maximum gain
18 dB at 10 MHz at minimum gain
OIP3: 45 dBm at 10 MHz
HD2/HD3
Better than 90 dBc for 2 V p-p output at 10 MHz at
maximum gain
Differential input and output
Adjustable output common-mode
Optional dc output offset correction
Serial/parallel mode gain control
Power-down feature
Single 5 V supply operation
APPLICATIONS
Baseband I/Q receivers
Diversity receivers
Wideband ADC drivers
FUNCTIONAL BLOCK DIAGRAM
VPSIA
IPPA
IPMA
ENBL
ICOM
IPMB
IPPB
VPSIB
BIT0/CS
BIT1/SDAT
BIT2/SCLK
BIT3
OCOM
BIT4
BIT 5
DENA
DE
C
A
OFS
A
CC
M
A
VC
MA
VP
SO
A
OP
P
A
OP
M
A
SE
N
B
DE
C
B
OF
S
B
CCM
B
VC
M
B
VPS
O
B
O
PPB
OP
M
B
DE
N
B
DIGITAL GAIN
CONTROL LOGIC
07
58
4-
0
01
Figure 1.
GENERAL DESCRIPTION
The AD8366 is a matched pair of fully differential, low noise and
low distortion, digitally programmable variable gain amplifiers
(VGAs). The gain of each amplifier can be programmed separately
or simultaneously over a range of 4.5 dB to 20.25 dB in steps of
0.25 dB. The amplifier offers flat frequency performance from dc
to 70 MHz, independent of gain code.
The AD8366 offers excellent spurious-free dynamic range, suitable
for driving high resolution analog-to-digital converters (ADCs).
The NF at maximum gain is 11.4 dB at 10 MHz and increases
~2 dB for every 4 dB decrease in gain. Over the entire gain range,
the HD3/HD2 are better than 90 dBc for 2 V p-p at the output at
10 MHz into 200 Ω. The two-tone intermodulation distortion of
90 dBc into 200 Ω translates to an OIP3 of 45 dBm (38 dBVrms).
The differential input impedance of 200 Ω provides a well-defined
termination. The differential output has a low impedance of ~25 Ω.
The output common-mode voltage defaults to VPOS/2 but can
be programmed via the VCMA and VCMB pins over a range
of voltages. The input common-mode voltage also defaults
to VPOS/2 but can be driven down to 1.5 V. A built-in, dc offset
compensation loop can be used to eliminate dc offsets from prior
stages in the signal chain. This loop can also be disabled if dc-
coupled operation is desired.
The digital interface allows for parallel or serial mode gain
programming. The AD8366 operates from a 4.75 V to 5.25 V
supply and consumes typically 180 mA. When disabled, the
part consumes roughly 3 mA. The AD8366 is fabricated using
Analog Devices, Inc., advanced silicon-germanium bipolar
process, and it is available in a 32-lead exposed paddle LFCSP
package. Performance is specified over the 40°C to +85°C
temperature range.
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