High Speed with High Voltage
Operational Amplifiers
Datasheet
BA3472, BA3472R, BA3474, BA3474R
●General Description
General-purpose BA3472,BA3472R,BA3474,BA3474R
integrate two/four Independent Op-amps and phase
compensation capacitors on a single chip and have some
features of high-gain, and wide operating voltage range of
+3[V] to +36[V](single power supply). Especially,
characteristics are high slew rate (10[V/μs]) and high
Maximum frequency (4[MHz]).
●Features
Operable with a single power supply
Wide operating supply voltage
Standard Op-Amp. Pin-assignments
Internal phase compensation
High open loop voltage gain
Internal ESD protection
Operable low input voltage around GND level
Wide output voltage range
●Packages (Typ.) (Typ.) (Max.)
MSOP8 2.90mm x 4.00mm x 0.90mm
SSOP-B8 3.00mm x 6.40mm x 1.35mm
SSOP-B14 5.00mm x 6.40mm x 1.35mm
SOP8 5.00mm x 6.20mm x 1.71mm
SOP14 8.70mm x 6.20mm x 1.71mm
●Selection Guide
●Key Specifications
Wide Operating Supply Voltage:
Single supply +3.0[V] to +36.0[V]
Dual supply ±1.5[V] to ±18.0[V]
Wide Temperature Range:
BA3474F -40[°C] to +75[°C]
BA3472F BA3472FV
BA3472FVM BA3474FV -40[°C] to +85[°C]
Note: Absolute maximum rating item indicates the condition which must not be exceeded.
Application if voltage in excess of absolute maximum rating or use out of absolute maximum rated temperature environment may cause
deterioration of characteristics.
(*1) The voltage difference between inverting input and non-inverting input is the differential input voltage.
Then input terminal voltage is set to more than VEE.
Input Offset Current (*2) Iio 25℃- 6 75 nAVicm=0[V],VOUT=0[V]
Input Bias Current (*2) Ib 25℃- 100 500 nAVicm=0[V],VOUT=0[V]
Supply Current ICC 25℃- 4 5.5 mARL=∞
High Level Output Voltage VOH 25℃
3.7 4 -
13.7 14 - RL=10[kΩ]
VCC=5[V],RL=2[kΩ]
V
13.5 - - RL=2[kΩ]
- 0.1 0.3 V VCC=5[V],RL=2[kΩ]
Low Level Output Voltage VOL 25℃
- -14.7-14.3RL=10[kΩ]
- - -13.5RL=2[kΩ]
Large Signal Voltage Gain AV 25℃80 100 - dBRL≧2[kΩ],VOUT=±10 [V]
Input Common-mode
Voltage Range
Vicm 25℃0 - VCC-2.0V
VCC=5[V],VEE=0[V],
VOUT=VCC/2
Common-mode Rejection Ratio CMRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
Power Supply Rejection Ratio PSRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
VCC=5[V],VIN+=1[V],
Output Source Current (*3) IOH 25℃10 30 - mA
VIN-=0[V],VOUT=0[V]
Only 1ch is short circuit
VCC=5[V],VIN+=0[V],
Output Sink Current (*3) IOL 25℃20 30 - mA
VIN-=1[V],VOUT=5[V],
Only 1ch is short circuit
Maximum Frequency ft 25℃- 4 - MHz-
Slew Rate SR 25℃- 10 - V/μs
Av=1,Vin=-10 to +10[V],
RL=2[kΩ]
Channel Separation CS 25℃- 120 - dB-
(*2) Absolute value
(*3) Under high temperatures, please consider the power dissipation when selecting the output current.
When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
Large Signal Voltage Gain AV 25℃80 100 - dBRL≧2[kΩ],VOUT=±10 [V]
Input Common-mode
Voltage Range
Vicm 25℃0 - VCC-2.0V
VCC=5[V],VEE=0[V],
VOUT=VCC/2
Common-mode Rejection Ratio CMRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
Power Supply Rejection Ratio PSRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
Output Source Current
(*5)
IOH 25℃10 30 - mA
VCC=5[V],VIN+=1[V],
VIN-=0[V], VOUT=0[V]
Only 1ch is short circuit
VCC=5[V],VIN+=0[V],
VIN-=1[V], VOUT=5[V]
Output Sink Current
(*5)
IOL 25℃20 30 - mA
Only 1ch is short circuit
Maximum Frequency ft 25℃- 4 - MHz-
Slew Rate SR 25℃- 10 - V/μs
Av=1,Vin=-10 to +10[V],
RL=2[kΩ]
Channel Separation CS 25℃- 120 - dB-
(*4) Absolute value
(*5) Under high temperatures, please consider the power dissipation when selecting the output current.
When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
Large Signal Voltage Gain AV 25℃80 100 - dBRL≧2[kΩ], VOUT=±10 [V]
Input Common-mode Voltage
Range
Vicm 25℃0 - VCC-2.0V
VCC=5[V],VEE=0[V],
VOUT=VCC/2
Common-mode Rejection Ratio CMRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
Power Supply Rejection Ratio PSRR 25℃60 97 - dBVicm=0[V],VOUT=0[V]
Output Source Current
(*7)
IOH 25℃10 30 - mA
VCC=5[V],VIN+=1[V],
VIN-=0[V], VOUT=0[V]
Only 1ch is short circuit
VCC=5[V],VIN+=0[V],
VIN-=1[V], VOUT=5[V]
Output Sink Current
(*7)
IOL 25℃20 30 - mA
Only 1ch is short circuit
Maximum Frequency ft 25℃- 4 - MHz-
Slew Rate SR 25℃- 10 - V/μs
Av=1,Vin=-10 to +10[V],
RL=2[kΩ]
Channel Separation CS 25℃- 120 - dB-
(*6) Absolute value
(*7) Under high temperatures, please consider the power dissipation when selecting the output current.
When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
VIN-=0[V],VOUT=0[V],
Only 1ch is short circuit
VCC=5[V],VIN+=0[V],
IOL
25℃
20 30 - mA
VIN-=1[V],VOUT=5[V],
Only 1ch is short circuit
ft 25℃- 4 - MHz
-
Slew Rate
Channel Separation
(*8) Absolute value
(*9) Under high temperatures, please consider the power dissipation when selecting the output current.
When the output terminal is continuously shorted the output current reduces the internal temperature by flushing.
Described below are descriptions of the relevant electrical terms
Please note that item names, symbols and their meanings may differ from those on another manufacturer’s documents.
1. Absolute maximum ratings
The absolute maximum ratings are values that should never be exceeded, since doing so may result in deterioration of
electrical characteristics or damage to the part itself as well as peripheral components.
1.1 Power supply voltage (VCC-VEE)
Expresses the maximum voltage that can be supplied between the positive and negative supply terminals without
causing deterioration of the electrical characteristics or destruction of the internal circuitry.
1.2 Differential input voltage (Vid)
Indicates the maximum voltage that can be supplied between the non-inverting and inverting terminals without
damaging the IC.
1.3 Input common-mode voltage range (Vicm)
Signifies the maximum voltage that can be supplied to non-inverting and inverting terminals without causing
deterioration of the characteristics or damage to the IC itself. Normal operation is not guaranteed within the
common-mode voltage range of the maximum ratings – use within the input common-mode voltage range of the
electric characteristics instead.
1.4 Power dissipation (Pd)
Indicates the power that can be consumed by a particular mounted board at ambient temperature (25℃). For
packaged products, Pd is determined by the maximum junction temperature and the thermal resistance.
2. Electrical characteristics
2.1 Input offset voltage (Vio)
Signifies the voltage difference between the non-inverting and inverting terminals. It can be thought of as the input
voltage difference required for setting the output voltage to 0 V.
2.2 Input offset current (Iio)
Indicates the difference of input bias current between the non-inverting and inverting terminals.
2.3 Input bias current (Ib)
Denotes the current that flows into or out of the input terminal, it is defined by the average of the input bias current at
the non-inverting terminal and the input bias current at the inverting terminal.
2.4 Circuit current (ICC)
Indicates the current of the IC itself that flows under specified conditions and during no-load steady state.
2.5
maximum output voltage (VOM)
Indicates the voltage range that can be output by the IC under specified load condition. It is typically divided into
high-level output voltage and low-level output voltage.
2.6 Large signal voltage gain (AV)
The amplifying rate (gain) of the output voltage against the voltage difference between non-inverting and inverting
terminals, it is (normally) the amplifying rate (gain) with respect to DC voltage.
AV = (output voltage fluctuation) / (input offset fluctuation)
2.7 Input common-mode voltage range (Vicm)
Indicates the input voltage range under which the IC operates normally.
2.8 Common-mode rejection ratio (CMRR)
Signifies the ratio of fluctuation of the input offset voltage when the in-phase input voltage is changed (DC fluctuation).
CMRR = (change in input common-mode voltage) / (input offset fluctuation)
2.9 Power supply rejection ratio (PSRR)
Denotes the ratio of fluctuation of the input offset voltage when supply voltage is changed (DC fluctuation).
SVR = (change in power supply voltage) / (input offset fluctuation)
2.10 Channel separation (CS)
Expresses the amount of fluctuation of the input offset voltage or output voltage with respect to the change in the
output voltage of a driven channel.
2.11 Slew rate (SR)
Indicates the time fluctuation ratio of the output voltage when an input step signal is supplied.
2.12 Maximum frequency (ft)
Indicates a frequency where the voltage gain of Op-Amp is 1.
2.13 Total harmonic distortion + Noise (THD+N)
Indicates the fluctuation of input offset voltage or that of output voltage with reference to the change of output voltage
of driven channel.
2.14 Input referred noise voltage (Vn)
Indicates a noise voltage generated inside the operational amplifier equivalent by ideal voltage source connected in