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n n n n n
Open loop gain Large signal voltage gain Gain bandwidth product Slew rate Total harmonic distortion
AOL AVD GBP SR THD
Typical Values
n n n n n
LM324, ST
∆t
Total Harmonic Distortion
THD (%) =
n
∑ E( f )
i =2 Hi
∞
2
20dB 0dB -20dB -40dB -60dB -80dB -100dB -120dB -140dB -160dB -180dB 0.5KHz 1.0KHz
V(v1)
n n
Absolute Maximum Ratings
Absolute Maximum Ratings
n
Supply voltage
VCC
Absolute Maximum Ratings
n n
Supply voltage Input voltage range
VCC Vir
Absolute Maximum Ratings
DC Electrical Characteristics
n
Input common mode voltage range
Vicm
DC Electrical Characteristics
n n
Input common mode voltage range Output voltage swing
GBW (dB) = 20 × log( f XGX )
GX
n
fX
fC
fX is thought to be equal to fc if not mentioned.
TL082, NSC
Slew Rate
∆V SR = ∆t
n
∆V
Tested under
n
n
n
Unity gain (i.e. voltage follower) Certain load conditions (RL, CL, …) Fixed power supply voltage
n n n
Supply voltage Input voltage range Differential input voltage range
VCC Vir Vidr
Absolute Maximum Ratings
n n n n
Supply voltage Input voltage range Differential input voltage range Total power dissipation
Vicm Vo
DC Electrical Characteristics
n n n
Input common mode voltage range Output voltage swing Input resistance
Vicm Vo Rin
DC Electrical Characteristics
CMRR
n
Definition
Avd CMRR (dB) = 20 × log A vc
n
Actually measured by*
∆Vos CMRR (dB) = 20 × log ∆V ic
PSRR
n
Definition
∆VCC PSRR (dB) = 20 × log ∆V os
VCC Vir Vidr Ptot Toper
Absolute Maximum Ratings
n n n n n n
Supply voltage Input voltage range Differential input voltage range Total power dissipation Operating free-air temperature range Storage temperature
CMRR & PSRR versus Frequency
n
Both CMRR and PSRR decreases while frequency goes high.
TL082, NSC
AC Electrical Characteristics
AC Electrical Characteristics
DC Electrical Characteristics
n n n n n n n
Input common mode voltage range Output voltage swing Input resistance Input offset voltage Input bias current Input offset current Common mode rejection ratio
n n n n n n
Input common mode voltage range Output voltage swing Input resistance Input offset voltage Input bias current Input offset current
Vicm Vo Rin Vos Iib Ios
n
Open loop gain
AOL
AC Electrical Characteristics
n n
Open loop gain Large signal voltage gain
AOL AVD
AC Electrical Characteristics
n n n
Open loop gain Large signal voltage gain Gain bandwidth product
VCC Vir Vidr Ptot
Absolute Maximum Ratings
n n n n n
Supply voltage Input voltage range Differential input voltage range Total power dissipation Operating free-air temperature range
OpAmps (1)
Ferrite Rod Aerial
17 November 2015
Read the Datasheet First
n
n
Read the datasheet of the IC before putting it into use. Seek inspirations from application notes. http://www.alldatasheet.com http://easydatasheet.cn
Input common mode voltage range Output voltage swing Input resistance Input offset voltage Input bias current
Vicm Vo Rin Vos Iib
DC Electrical Characteristics
VCC Vir Vidr Ptot Toper Tstg
Typical Values
n n n n n n
VCC Vi Vid Ptot Toper Tstg
±15V ±VCC ±2VCC 10 to 500 (mW) 0 to +70 (°C) -65 to +150 (°C)
DC Electrical Characteristics
E ( f0 )
To achieve a lower output THD, make sure the amplifier is working under its recommended operating conditions.
2.0KHz
4.0KHz
7.5KHz
f0
f H2
f H3
f H4
L
Vicm Vo Rin Vos Iib Ios CMRR PSRR
Typical Values
n n n n n n n n
ቤተ መጻሕፍቲ ባይዱ
Vicm Vo Rin Vos Iib Ios CMRR PSRR
|VCC| - 2V ± (|VCC| - 1.5V) 2MΩ to 1012 Ω 2 to 30 (mV) 5nA to 1μA 20pA to 800nA 70 to 100 (dB) 100dB
Input Stage
n
n
n
Current biasing circuit (shown as a 6μA current source in this diagram) BJT differential pair (Q1 thru Q4) Dynamic load (Q8 and Q9)
LM324, ST
n n n n
Input common mode voltage range Output voltage swing Input resistance Input offset voltage
Vicm Vo Rin Vos
DC Electrical Characteristics
n n n n n
Vicm Vo Rin Vos Iib Ios CMRR
DC Electrical Characteristics
n n n n n n n n
Input common mode voltage range Output voltage swing Input resistance Input offset voltage Input bias current Input offset current Common mode rejection ratio Power supply rejection ratio
AOL AVD GBP SR THD
80 to 120 (dB) 25 to 100 (V/mV) 1 to 10 (MHz) 0.4 to 20 (V/μs) 0.015%
Open Loop Frequency Response
fC
TL082, NSC
Gain Bandwidth Product
AOL AVD GBP
AC Electrical Characteristics
n n n n
Open loop gain Large signal voltage gain Gain bandwidth product Slew rate
AOL AVD GBP SR
AC Electrical Characteristics
