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| 型号： | MAX4333ESD+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/16页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP R-R I/O LP 14-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 1.5 V/µs |
| 增益带宽积： | 3MHz |
| 电流 - 输入偏压： | 25nA |
| 电压 - 输入偏移： | 250µV |
| 电流 - 电源： | 275µA |
| 电流 - 输出 / 通道： | 20mA |
| 电压 - 电源，单路/双路(±)： | 2.3 V ~ 6.5 V，±1.15 V ~ 3.25 V |
| 工作温度： | -40°C ~ 85°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-SOIC |
| 包装： | 管件 |
MAX4330–MAX4334
Single/Dual/Quad, Low-Power, Single-Supply,
Rail-to-Rail I/O Op Amps with Shutdown
______________________________________________________________________________________
11
Rail-to-Rail Output Stage
The MAX4330–MAX4334 output stage can drive up to a
2k
load and still typically swing within 125mV of the
rails. Figure 3 shows the output voltage swing of a
MAX4331 configured as a unity-gain buffer. The operat-
ing voltage is a single +3V supply, and the input volt-
age is 3Vp-p. The output swings to within 70mV of VEE
and 100mV of VCC, even with the maximum load
applied (2k
to mid-supply).
Driving a capacitive load can cause instability in many
op amps, especially those with low quiescent current.
The MAX4330–MAX4334 are stable for capacitive loads
up to 150pF. The Capacitive Load Stability graph in the
Typical Operating Characteristics gives the stable
operating region for capacitive vs. resistive loads.
Figures 4 and 5 show the response of the MAX4331
with an excessive capacitive load, compared with the
response when a series resistor is added between the
output and the capacitive load. The resistor improves
the circuit’s response by isolating the load capacitance
from the op amp’s output (Figure 6).
1k
Figure 2. Input Protection Circuit
Figure 3. Rail-to-Rail Input/Output Voltage Range
IN
1V/div
OUT
20
s/div
VCC = 3V, RL = 2k TO VCC / 2
Figure 4. Small-Signal Transient Response with Excessive
Capacitive Load
IN
50mV/div
OUT
2
s/div
RISO = 0, AV = +1
CL = 510pF
VCC = 3V, RL = 100k
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