1
Standard ICs
Quad ground sense operational
amplifier
BA10324A / BA10324AF / BA10324AFV
The BA10324A, BA10324AF, and BA10324AFV are monolithic ICs with four built-in operational amplifiers featuring
internal phase compensation.
Either a dual or single power supply can be driven, and these products can be driven by a digital system 5V single
power supply. These products can be used in a wide range of administrative and industrial applications, including
transducer amplifiers and DC amplifiers.
•Applications
Ground sensing type pre-amplifiers
Active filters
DC amplifiers
Pulse generators.
•Features
1) Wide range of operating power supply voltages and
single power supply drive enabled.
(single power supply: 3 to 32V, dual power supply: ±
1.5 to ± 16V)
2) Common-mode input voltage can be operated from
the ground level.
3) Differential input voltage can be operated up to the
power supply voltage level.
4) Low current dissipation. (IQ= 0.6mA)
5) Low offset voltage and offset current. (VIO = 2mV, IIO
= 5nA typ.)
6) Four operational amplifiers with phase compensa-
tion are built into the DIP / SOP Pin 14.
7) Compatible with model 324 operational amplifiers of
other manufacturers.
•Block diagram
1
2
1OUT1
– IN1
+ IN1
VCC
+ IN2
–IN2
OUT2
OUT4
–IN4
+ IN4
VEE
+ IN3
–IN3
OUT3
14
213
312
411
510
69
78
+–+–
3
+––+4
BA10324A / BA10324AF / BA10324AFV
2
Standard ICs BA10324A / BA10324AF / BA10324AFV
•Internal circuit configuration
VCC
VEE
OUT
–IN
+ IN
•Absolute maximum ratings (Ta = 25°C)
Parameter Symbol Limits Unit
BA10324A BA10324AF BA10324AFV
Power supply voltage
Power dissipation
Differential input voltage
Common-mode input voltage
Operating temperature
Storage temperature
VCC 32 ( ± 16) 32 ( ± 16) 32 ( ± 16) V
950∗450∗400∗mW
VID ± VCC V
VI– 0.3 ~ VCC V
Topr – 40 ~ + 85 – 40 ~ + 85 – 40 ~ + 85 °C
Tstg
– 55
~
+ 125 – 55
~
+ 125 – 55
~
+ 125
°C
Pd
± VCC
– 0.3 ~ VCC
± VCC
– 0.3 ~ VCC
∗ Refer to the Pd characteristics diagram.
The values for the are those when BA10324AF / BA10324AFV it is mounted on a glass epoxy board (50mm × 50mm × 1.6mm).
3
Standard ICs BA10324A / BA10324AF / BA10324AFV
•Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 5V)
Parameter Symbol Min. Typ. Max. Unit Conditions
V
IO
—2 7mVR
S
= 50Ω
I
IO
— 5 50 nA
Ib — 20 250 nA
V
ICM
0—V
CC
– 1.5
V
CC
– 1.5
V
CMRR 65 75 — dB
A
VOI
87 100 — dB
PSRR 65 100 — dB R
S
= 50Ω
I
Q
— 0.6 2.0 mA
V
OH
——VR
L
= 2kΩ
V
OL
— — 0.25 V R
L
= ∞
Source
Sink
I
OH
20 35 — mA V
O
= 0
I
OL
10 20 — mA V
O
= V
CC
CS — 120 — dB f = 1kHz
input conversion
R
L
⭌ 2kΩ, V
CC
= 15V
R
L
= ∞, on All Op - Amps
∗
1
∗
1 Because the first stage is configured with a PNP transistor, input bias current is from the IC.
Input offset voltage
Input offset current
Input bias current
Common-mode input voltage
Common-mode rejection ratio
High-amplitude voltage gain
Power supply voltage rejection ratio
Quiescent current
Maximum output voltage
Maximum
output current
Channel separation
•Electrical characteristic curves
1200
1000
800
600
400
200
00 25 50 75 85 100 125 150
AMBIENT TEMPERATURE: Ta (°C)
POWER DISSIPATION: Pd (mW)
Fig.1 Power dissipation vs. ambient
temperature
BA10324A
BA10324AF
BA10324AFV
2.0
1.5
1.0
0.5
010203040
POWER SUPPLY VOLTAGE: V+ (V)
SUPPLY CURRENT: IQ (mA)
VCC AIQ
+
–
Fig.2 Quiescent current vs. power
supply voltage
140
120
20
100
80
60
40
00 10 100 1k 10k 100k 1M 10M
FREQUENCY: f (Hz)
OPEN LOOP VOLTAGE GAIN: AV (dB)
10M
VO
2
VCC
VIN
0.1µFVCC
+
–
~
Fig.3 Open loop voltage gain vs.
frequency
4
Standard ICs BA10324A / BA10324AF / BA10324AFV
20
15
10
5
0
100 1k 10k 100k 1M
FREQUENCY: f (Hz)
MAXIMUM OUTPUT VOLTAGE: VOM (V)
100k
VO
VIN
2k
1k
7V
15V
~+
–
Fig.4 Maximum output voltage vs.
frequency
50
40
0
– 20 0 20 40 60 80
10
20
30
AMBIENT TEMPERATURE: Ta (°C)
INPUT BIAS CURRET
:
I
B
(
nA)
Fig.5 Input bias current vs. ambient
temperature
40
010 20 30 40
10
20
30
POWER SUPPLY VOLTAGE: V
+
(V)
INPUT BIAS CURRENT: I
B
(nA)
Fig.6 Input bias current vs. power supply
voltage
5
3
2
4
0
0.001 0.01 0.1 1.0 10 100
1
OUTPUT SOURCE CURRENT (mA)
OUTPUT VOLTAGE
REFERENCED TO V
+
: ∆V (V)
Fig.7 Potential difference during
power supply output vs. output
source current
0.01
0.1
1.0
10
0.001 0.01 0.1 1.0 10 100 1000
OUTPUT SINK CURRENT: I
O
(mA)
OUTPUT VOLTAGE: V
O
(V)
Fig.8 Output voltage vs. output sink
current
R
L
⭌ 2kΩ
V
CC
= 15V
4
3
2
1
0
0020406080
1
2
3
TIME (µs)
INPUT VOLTAGE OUTPUT VOLTAGE
V
IN
(V) V
OUT
(V)
Fig.9 Output response characteristics
•Operation notes
(1) Unused circuit connections
If there are any circuits which are not being used, we
recommend making connections as shown in Figure
10, with the non-inverted input pin connected to the
potential within the in-phase input voltage range (VICM).
VCC
VEE
+
–
Fig.10 Unused circuit connections
To potential
in VICM
5
Standard ICs BA10324A / BA10324AF / BA10324AFV
BA10324A BA10324AF
BA10324AFV
DIP14 SOP14
SSOP-B14
6.5 ± 0.3
19.4 ± 0.3
0.5 ± 0.1
3.2 ± 0.2 4.25 ± 0.3
14 8
71
0.3 ± 0.1
0.51Min.
7.62
0° ~ 15°
2.54
0.4 ± 0.11.27
1
14
8.7 ± 0.2
7
8
4.4 ± 0.2
6.2 ± 0.3
0.11
1.5 ± 0.1
0.15
0.15 ± 0.1
0.3Min.
0.1
0.22 ± 0.1
0.65
8
7
14
1
6.4 ± 0.3
4.4 ± 0.2
5.0 ± 0.2
1.15 ± 0.1
0.15 ± 0.1
0.3Min.
0.1
•External dimensions (Units: mm)
