Datasheet > CA3160A

CA3160A

更新时间： 2024-02-26 08:51:42

品牌	Logo	应用领域
英特矽尔 - INTERSIL		运算放大器
页数	文件大小	规格书
17页	928K
描述
4MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output

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CA3160A 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	, CAN8,.2	Reach Compliance Code：	unknown
风险等级：	5.75	放大器类型：	OPERATIONAL AMPLIFIER
架构：	VOLTAGE-FEEDBACK	25C 时的最大偏置电流 (IIB)：	0.00005 µA
频率补偿：	YES	最大输入失调电压：	15000 µV
JESD-30 代码：	O-MBCY-W8	JESD-609代码：	e0
低-偏置：	YES	低-失调：	NO
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-55 °C
封装主体材料：	METAL	封装等效代码：	CAN8,.2
封装形状：	ROUND	封装形式：	CYLINDRICAL
电源：	5/15 V	子类别：	Operational Amplifiers
最大压摆率：	15 mA	供电电压上限：	8 V
温度等级：	MILITARY	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	WIRE	端子位置：	BOTTOM
最小电压增益：	50000	Base Number Matches：	1

CA3160A 数据手册

CA3160, CA3160A

Schematic Diagram

V+

BIAS CURRENT

CURRENT SOURCE

“CURRENT SOURCE

FOR Q AND Q

LOAD” FOR Q

8.3V

40kΩ

5kΩ

INPUT STAGE

SECOND

STAGE

NON-INV.

INPUT

OUTPUT

STAGE

OUTPUT

2kΩ

INV. INPUT

1kΩ

SUPPLEMENTARY

COMP IF DESIRED

OFFSET NULL

STROBING

NOTE: Diodes D Through D Provide Gate Oxide Protection For MOSFET Input Stage.

Application Information

resistance presented to the amplifier is very high (e.g., when

the amplifier output is used to drive MOS digital circuits in

comparator applications).

Circuit Description

Refer to the Block Diagram of the CA3160 series CMOS

Operational Amplifiers. The input terminals may be operated

down to 0.5V below the negative supply rail, and the output

can be swung very close to either supply rail in many

applications. Consequently, the CA3160 series circuits are

ideal for single supply operation. Three class A amplifier

stages, having the individual gain capability and current

consumption shown in the Block Diagram provide the total

gain of the CA3160. A biasing circuit provides two potentials

for common use in the first and second stages. Terminals 8

and 1 can be used to supplement the internal phase

Input Stage - The circuit of the CA3160 is shown in the

Schematic Diagram. It consists of a differential-input stage

using PMOS field-effect transistors (Q , Q ) working into a

mirror-pair of bipolar transistors (Q , Q ) functioning as load

resistors together with resistors R through R . The mirror-

pair transistors also function as a differential-to-single-ended

converter to provide base drive to the second-stage bipolar

transistor (Q ). Offset nulling, when desired, can be effected

by connecting a 100,000Ω potentiometer across Terminals 1

compensation network if additional phase compensation or

frequency roll-off is desired. Terminals 8 and 4 can also be

used to strobe the output stage into a low quiescent current

state. When Terminal 8 is tied to the negative supply rail

(Terminal 4) by mechanical or electrical means, the output

potential at Terminal 6 essentially rises to the positive supply-

rail potential at Terminal 7. This condition of essentially zero

current drain in the output stage under the strobed “OFF”

condition can only be achieved when the ohmic load

and 5 and the potentiometer slider arm to Terminal 4.

Cascode-connected PMOS transistors Q , Q , are the

constant-current source for the input stage. The biasing circuit

for the constant-current source is subsequently described.

The small diodes D through D provide gate-oxide protection

against high-voltage transients, including static electricity

during handling for Q and Q .

Second-Stage - Most of the voltage gain in the CA3160 is

provided by the second amplifier stage, consisting of bipolar

1 2 345 6 7...17

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与CA3160A相关器件

型号	品牌	描述	获取价格	数据表
CA3160AE	INTERSIL	4MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output	获取价格
CA3160AM	ETC	Analog IC	获取价格
CA3160AS	RENESAS	CA3160AS3	获取价格
CA3160AS3	RENESAS	CA3160AS3	获取价格
CA3160AT	ETC	Analog IC	获取价格
CA3160AT1	RENESAS	CA3160AT1	获取价格

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