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参数资料
| 型号： | ISL28236 |
| 厂商： | Intersil Corporation |
| 英文描述： | 5MHz, Single and Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amps(5MHz,单/双精密轨对轨输入-输出(RRIO)运放) |
| 中文描述： | 5MHz的，单和双精密轨至轨输入，输出（RRIO）运算放大器（5MHz的，单/双精密轨对轨输入-输出（RRIO）运放） |
| 文件页数： | 12/15页 |
| 文件大小： | 790K |
| 代理商： | ISL28236 |
12
FN6153.2
June 28, 2007
3) When the slew rate of the input pulse is considerably
faster than the op amp’s slew rate. If the V
OUT
can’t keep up
with the IN+ signal, a differential voltage results, and visible
distortion occurs on the input and output signals. To avoid
this issue, keep the input slew rate below 1.9V/
μ
s, or use
appropriate current limiting resistors.
Large (>2V) differential input voltages can also cause an
increase in disabled I
CC
.
Using Only One Channel
The ISL28236 is a dual op amp. If the application only
requires one channel, the user must configure the unused
channel to prevent it from oscillating. The unused channel
will oscillate if the input and output pins are floating. This will
result in higher than expected supply currents and possible
noise injection into the channel being used. The proper way
to prevent this oscillation is to short the output to the
negative input and ground the positive input (as shown in
Figure 39).
Current Limiting
These devices have no internal current-limiting circuitry. If
the output is shorted, it is possible to exceed the Absolute
Maximum Rating for output current or power dissipation,
potentially resulting in the destruction of the device.
Power Dissipation
It is possible to exceed the +125°C maximum junction
temperatures under certain load and power-supply
conditions. It is therefore important to calculate the
maximum junction temperature (T
JMAX
) for all applications
to determine if power supply voltages, load conditions, or
package type need to be modified to remain in the safe
operating area. These parameters are related as follows:
where:
P
DMAXTOTAL
is the sum of the maximum power
dissipation of each amplifier in the package (PD
MAX
)
PD
MAX
for each amplifier can be calculated as follows:
where:
T
MAX
= Maximum ambient temperature
θ
JA
= Thermal resistance of the package
PD
MAX
= Maximum power dissipation of 1 amplifier
V
S
= Supply voltage (Magnitude of V
+
and V
-
)
I
MAX
= Maximum supply current of 1 amplifier
V
OUTMAX
= Maximum output voltage swing of the
application
R
L
= Load resistance
FIGURE 39. PREVENTING OSCILLATIONS IN UNUSED
CHANNELS
-
+
T
JMAX
T
MAX
θ
JA
xPD
MAXTOTAL
(
)
+
=
(EQ. 1)
PD
MAX
2*V
S
I
SMAX
V
S
(
- V
OUTMAX
)
V
L
----------------------------
×
+
×
=
(EQ. 2)
ISL28136, ISL28236
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL28236 WAF | 制造商:Intersil Corporation 功能描述: |
| ISL28236FBZ | 功能描述:IC OPAMP RRIO DUAL 5MHZ 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:75 系列:MicroAmplifier™ 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:0.03 V/µs 增益带宽积:100kHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:60µV 电流 - 电源:20µA 电流 - 输出 / 通道:5mA 电压 - 电源，单路/双路(±):2.3 V ~ 5.5 V 工作温度:-40°C ~ 85°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-SOIC 包装:管件 |
| ISL28236FBZ-T7 | 功能描述:IC OPAMP RRIO DUAL 5MHZ 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:TS1854A View All Specifications 标准包装:50 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.25 V/µs 增益带宽积:630kHz -3db带宽:- 电流 - 输入偏压:16nA 电压 - 输入偏移:1000µV 电流 - 电源:162µA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 |
| ISL28236FUZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:5MHz, Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amp |
| ISL28236FUZ-T7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:5MHz, Dual Precision Rail-to-Rail Input-Output (RRIO) Op Amp |
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