参数资料
| 型号： | AD8618ARUZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/20页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP GP R-R CMOS LN 14TSSOP |
| 标准包装： | 96 |
| 系列： | DigiTrim® |
| 放大器类型： | 通用 |
| 电路数： | 4 |
| 输出类型： | 满摆幅 |
| 转换速率： | 12 V/µs |
| 增益带宽积： | 24MHz |
| 电流 - 输入偏压： | 0.2pA |
| 电压 - 输入偏移： | 23µV |
| 电流 - 电源： | 1.7mA |
| 电流 - 输出 / 通道： | 150mA |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 14-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 773 (CN2011-ZH PDF) |
AD8615/AD8616/AD8618
Data Sheet
The following formula can be used to calculate the internal
application:
TJ = PDISS × θJA + TA
where:
TJ = junction temperature
PDISS = power dissipation
θJA = package thermal resistance, junction-to-case
TA = ambient temperature of the circuit
AD8618, use the following:
PDISS = ILOAD × (VS – VOUT)
where:
ILOAD = output load current
VS = supply voltage
VOUT = output voltage
The quantity within the parentheses is the maximum voltage
developed across either output transistor.
POWER CALCULATIONS FOR VARYING OR
UNKNOWN LOADS
Often, calculating power dissipated by an integrated circuit to
determine if the device is being operated in a safe range is not as
simple as it may seem. In many cases, power cannot be directly
measured. This may be the result of irregular output waveforms or
varying loads. Indirect methods of measuring power are required.
There are two methods to calculate power dissipated by an
integrated circuit. The first is to measure the package temperature
and the board temperature. The second is to directly measure
the circuit’s supply current.
Calculating Power by Measuring Ambient Temperature
and Case Temperature
The two equations for calculating the junction temperature are
TJ = TA + P θJA
where:
TJ = junction temperature
TA = ambient temperature
θJA = the junction-to-ambient thermal resistance
TJ = TC + P θJC
where:
TC is case temperature.
θJA and θJC are given in the data sheet.
The two equations for calculating P (power) are
TA + P θJA = TC + P θJC
P = (TA TC)/(θJC θJA)
Once the power is determined, it is necessary to recalculate the
junction temperature to ensure that the temperature was not
exceeded.
The temperature should be measured directly on and near the
package but not touching it. Measuring the package can be
difficult. A very small bimetallic junction glued to the package
can be used, or an infrared sensing device can be used, if the
spot size is small enough.
Calculating Power by Measuring Supply Current
If the supply voltage and current are known, power can be
calculated directly. However, the supply current can have a dc
component with a pulse directed into a capacitive load, which
can make the rms current very difficult to calculate. This difficulty
can be overcome by lifting the supply pin and inserting an rms
current meter into the circuit. For this method to work, make
sure the current is delivered by the supply pin being measured.
This is usually a good method in a single-supply system; however,
if the system uses dual supplies, both supplies may need to be
monitored.
Rev. F | Page 14 of 20
相关PDF资料 |
PDF描述 |
|---|---|
| AD8669ARUZ | IC OPAMP GP R-R CMOS LN 14TSSOP |
| PEC17DAAN | CONN HEADER .100 DUAL STR 34POS |
| M80-8511242 | CONN HDR 2MM R/A W/LATCH 12POS |
| M80-8632642 | CONN HDR 2MM DUAL W/LATCH 26POS |
| AD8669ARZ | IC OPAMP GP R-R CMOS QUAD 14SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8618ARUZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8618ARUZ-REEL | 功能描述:IC OPAMP GP R-R CMOS LN 14TSSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:电流检测 电路数:1 输出类型:- 转换速率:- 增益带宽积:125kHz -3db带宽:- 电流 - 输入偏压:- 电压 - 输入偏移:100µV 电流 - 电源:1.1µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:4-WFBGA，CSPBGA 供应商设备封装:4-UCSP（2x2） 包装:剪切带 (CT) 其它名称:MAX9634WERS+TCT |
| AD8618ARUZ-REEL1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8618ARZ | 功能描述:IC OPAMP GP R-R CMOS QUAD 14SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:DigiTrim® 标准包装:150 系列:- 放大器类型:音频 电路数:2 输出类型:- 转换速率:5 V/µs 增益带宽积:12MHz -3db带宽:- 电流 - 输入偏压:100nA 电压 - 输入偏移:500µV 电流 - 电源:6mA 电流 - 输出 / 通道:50mA 电压 - 电源，单路/双路(±):4 V ~ 32 V，±2 V ~ 16 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| AD8618ARZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Precision, 20 MHz, CMOS, Rail-to-Rail Input/Output Operational Amplifiers |
发布紧急采购，3分钟左右您将得到回复。