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| 型号： | MAX474EPA |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP DUAL 10MHZ R-R OUT 8DIP |
| 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： | 17 V/µs |
| 增益带宽积： | 12MHz |
| 电流 - 输入偏压： | 80nA |
| 电压 - 输入偏移： | 700µV |
| 电流 - 电源： | 2mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.25 V，±1.35 V ~ 2.625 V |
| 工作温度： | -40°C ~ 85°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 |
MAX473/MAX474/MAX475
Single/Dual/Quad, 10MHz
Single-Supply Op Amps
_______________________________________________________________________________________
9
______________________________________________________________Pin Description
Amplifier D Output
OUTD
14
—
Amplifier D Inverting Input
IND-
13
—
Amplifier D Noninverting Input
IND+
12
—
Amplifier C Noninverting Input
INC+
10
—
Amplifier C Inverting Input
INC-
9
—
Amplifier C Output
OUTC
8
—
MAX474
MAX475
PIN
INB+
OUT
INB-
OUTB
VCC
IN+
INA+
VEE
N.C.
INA-
IN-
OUTA
NULL
NAME
5
—
6
7
4
—
3
11
—
2
—
1
—
MAX473
Amplifier B Noninverting Input
5
—
Amplifier Output
—
6
Amplifier B Inverting Input
6
—
Amplifier B Output
7
—
Positive Power-Supply Pin. Connect to (+) terminal of power supply.
8
7
Noninverting Input
—
3
Amplifier A Noninverting Input
3
—
Negative Power-Supply Pin. Connect to ground or a negative voltage.
4
No Connect—not internally connected
—
5
Amplifier A Inverting Input
2
—
Inverting Input
—
2
Amplifier A Output
1
—
Offset Null Input. Connect to one end of 2k
potentiometer for offset voltage
trimming. Connect wiper to VEE. See Figure 1.
—
1, 8
FUNCTION
__________Applications Information
Power Supplies
The MAX473/MAX474/MAX475 operate from a single
2.7V to 5.25V power supply, or from dual supplies of
±1.35V to ±2.625V. For single-supply operation,
bypass the power supply with 0.1F. If operating from
dual supplies, bypass each supply to ground. With
0.1F bypass capacitance, channel separation
(MAX474/MAX475) is typically better than 120dB with
signal frequencies up to 300kHz. Increasing the
bypass capacitance (e.g. 10F
|| 0.1F) maintains
channel separation at higher frequencies.
Minimizing Offsets
The MAX473’s maximum offset voltage is ±2mV
(TA = +25°C). If additional offset adjustment is required,
connect a 2k
trim potentiometer between pins 1, 8, and
4 (Figure 1). Input offset voltage for the dual MAX474
and quad MAX475 cannot be externally trimmed.
The MAX473/MAX474/MAX475 are bipolar op amps
with low input bias currents. The bias currents at both
inputs flow out of the device. Matching the resistance
at the op amp’s inputs significantly reduces the offset
error caused by the bias currents. Place a resistor (R3)
from the noninverting input to ground when using the
inverting configuration (Figure 2a); place R3 in series
with the noninverting input when using the noninverting
configuration (Figure 2b). Select R3 such that the paral-
lel combination of R2 and R1 equals R3. Adding R3 will
slightly increase the op amp’s voltage noise.
Output Loading and Stability
The MAX473/MAX474/MAX475 op amps are unity-gain
stable. Any op amp’s stability depends on the configu-
ration, closed-loop gain, and load capacitance. The
unity-gain, noninverting buffer is the most sensitive gain
configuration, and driving capacitive loads decreases
stability.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX474EPA+ | 功能描述:运算放大器 - 运放 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 |
| MAX474ESA | 功能描述:运算放大器 - 运放 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 |
| MAX474ESA+ | 功能描述:运算放大器 - 运放 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 |
| MAX474ESA+T | 功能描述:运算放大器 - 运放 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 |
| MAX474ESA-T | 功能描述:运算放大器 - 运放 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 |
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