参数资料
| 型号： | TC913ACPA |
| 厂商： | Microchip Technology |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP DUAL AUTO ZERO 8DIP |
| 标准包装： | 60 |
| 放大器类型： | 断路器（零漂移） |
| 电路数： | 2 |
| 转换速率： | 2.5 V/µs |
| 增益带宽积： | 1.5MHz |
| 电流 - 输入偏压： | 90pA |
| 电压 - 输入偏移： | 5µV |
| 电流 - 电源： | 650µA |
| 电压 - 电源，单路/双路(±)： | 7 V ~ 16 V，±3.5 V ~ 8.3 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 产品目录页面： | 680 (CN2011-ZH PDF) |
2006 Microchip Technology Inc.
DS21482C-page 5
TC913A/TC913B
3.0
DETAILED DESCRIPTION
3.1
Theory of Operation
Each of the TC913’s two Op Amps actually consists of
two amplifiers. A main amplifier is always connected
from the input to the output. A separate nulling amplifier
alternately nulls its own offset and then the offset of the
amplifier. Since each amplifier is continuously being
nulled, offset voltage drift with time, temperature and
power supply variations is greatly reduced.
All nulling circuitry is internal and the nulling operation
is transparent to the user. Offset nulling voltages are
stored on two internal capacitors. An internal oscillator
and control logic, shared by the TC913’s two amplifiers,
control the nulling process.
3.2
Pin Compatibility
The TC913 pinout is compatible with OP-14, LM358,
MC1458, LT1013, TLC322, and similar dual Op Amps.
In many circuits operating from single or ±5V supplies,
the TC913 is a drop-in replacement offering DC
performance rivaling that of the best single Op Amps.
The TC913’s amplifiers include a low-impedance class
AB output buffer. Some previous CMOS chopper
amplifiers used a high-impedance output stage which
made open-loop gain dependent on load resistance.
The TC913’s open-loop gain is not dependent on load
resistance.
3.3
Overload Recovery
The TC913 recovers quickly from output saturation.
Typical recovery time from positive output saturation is
20 msec. Negative output saturation recovery time is
typically 5 msec.
3.4
Avoiding Latch-up
Junction-isolated CMOS circuits inherently contain a
parasitic p-n-p-n transistor circuit. Voltages exceeding
the supplies by 0.3V should not be applied to the
device pins. Larger voltages can turn the p-n-p-n
device on, causing excessive device power supply
current and power dissipation. The TC913’s power
supplies should be established at the same time or
before input signals are applied. If this is not possible,
input current should be limited to 0.1 mA to avoid
triggering the p-n-p-n structure.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TC913B | 制造商:TELCOM 制造商全称:TelCom Semiconductor, Inc 功能描述:DUAL AUTO-ZEROED OPERATIONAL AMPLIFIERS |
| TC913BCOA | 功能描述:运算放大器 - 运放 Dual Low VOS w/Caps RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| TC913BCOA713 | 功能描述:运算放大器 - 运放 Dual Low VOS w/Caps RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| TC913BCPA | 功能描述:运算放大器 - 运放 Dual Low VOS w/Caps RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| TC913BCPA | 制造商:Microchip Technology Inc 功能描述:OP AMP DUAL AUTO ZEROED DIP8 913 |
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