参数资料
| 型号： | AD8132ARZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 20/33页 |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF LDIST LP 70MA 8SOIC |
| 标准包装： | 1,000 |
| 放大器类型： | 差分 |
| 电路数： | 1 |
| 输出类型： | 差分 |
| 转换速率： | 1200 V/µs |
| -3db带宽： | 360MHz |
| 电流 - 输入偏压： | 3µA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 12mA |
| 电流 - 输出 / 通道： | 70mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 11 V，±1.35 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SO |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页当前第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
AD8132
Rev. I | Page 26 of 32
APPLICATIONS INFORMATION
ANALOG-TO-DIGITAL DRIVER
Many of the newer high speed ADCs are single supply and have
differential inputs. Thus, the driver for these devices is able to
convert from a single-ended signal to a differential signal and
provide output common-mode level shifting in addition to
having low distortion and noise. The AD8132 conveniently
performs these functions when driving the AD9203, a 10-bit,
40 MSPS ADC.
In Figure 73, a 1 V p-p signal drives the input of an AD8132
configured for unity gain. Both the AD8132 and the AD9203 are
powered from a single 3 V supply. A voltage divider biases VOCM
at midsupply and in turn drives VOUT, cm to half of the supply
voltage. This is within the common-mode range of the AD9203.
Between the ADC and the driver is a 1-pole, differential filter that
helps to filter some of the noise and assists the switched-capacitor
inputs of the ADC. Each of the ADC inputs is driven by a 0.5 V p-p
signal that ranges from 1.25 V dc to 1.75 V dc. Figure 72 is an
FFT plot of the performance of the circuit when running at a
clock rate of 40 MSPS and an input frequency of 2.5 MHz.
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
2ND
3RD
4TH
5TH
7TH
8TH
9TH
6TH
fS = 40MHz
fIN = 2.5MHz
INPUT FREQUENCY (MHz)
OU
T
P
U
T
(
d
B
c)
FUND
01
03
5-
0
71
Figure 72. FTT Response for AD8132 Driving AD9203
BALANCED CABLE DRIVER
When driving a twisted pair cable, it is desirable to drive only
a pure differential signal onto the line. If the signal is purely
differential (that is, fully balanced), and the transmission line is
twisted and balanced, there is minimum radiation of any signal.
The complementary electrical fields are confined mostly to
the space between the two twisted conductors and does not
significantly radiate out from the cable. The current in the cable
creates magnetic fields that radiate to some degree. However, the
amount of radiation is mitigated by the twists, because for
each twist, the two adjacent twists have an opposite polarity
magnetic field. If the twist pitch is tight enough, these small
magnetic field loops contain most of the magnetic flux, and
the magnetic farfield strength is negligible.
3V
0.1F
10F
+
3V
348
0.1F
348
49.9
348
24.9
10k
1V p-p
348
60.4
20pF
AINN
AINP
AVDD
DRVDD
AVSS
DRVSS
AD9203
DIGITAL
OUTPUTS
3V
0.1F
AD8132
8
2
1
3
5
6
4
25
26
28
27
1
2
01
03
5-
07
0
Figure 73. AD8132 Driving AD9203, a 10-Bit, 40 MSPS ADC
相关PDF资料 |
PDF描述 |
|---|---|
| AD8133ACPZ-REEL | IC OPAMP DIFF TRPL LDIST 24LFCSP |
| AD8134ACPZ-REEL | IC OPAMP DIFF TRPL LDIST 24LFCSP |
| AD8137YR | IC AMP DIFF R-R LP 20MA 8SOIC |
| AD8139ARD-REEL | IC AMP DIFF R-R LN LDIST 8SOIC |
| AD8202WYRMZ | IC AMP DIFF 50KHZ 8MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8132ARZ-R71 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, High Speed Differential Amplifier |
| AD8132ARZ-REEL7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, High Speed Differential Amplifier |
| AD8132ARZ-RL | 功能描述:IC AMP DIFF LDIST LP 70MA 8SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| AD8132ARZ-RL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Cost, High Speed Differential Amplifier |
| AD8132-EVAL | 制造商:AD 制造商全称:Analog Devices 功能描述:Low-Cost, High-Speed Differential Amplifier |
发布紧急采购，3分钟左右您将得到回复。