PRELIMINARY
DS4812
Low Voltage, High Slew Rate,
Rail-To-Rail Dual Op-Amp
www.dalsemi.com
FEATURES
High Slew Rate: 10V/µs
High Gain Bandwidth: 6.5 MHz
Supply Voltage Range 2.5 to 5.5V
Rail-to-Rail Output Swing
1.75 mA Supply Current per Channel
PACKAGES/PINOUTS
AOUT
1
8
VDD
AIN-
2
A
- +
B
-
7
BOUT
AIN+
3
+
6
BIN-
ORDERING INFORMATION
Part Number
DS4812
DS4812S
DS4812U
DS4812X
Description
8-pin DIP
8-pin SOIC
8-pin
µ-SOP
8-bump CSP
AOUT
GND
4
5
BIN+
300-mil DIP
150-mil SOIC
118-mil
µ-SOP
VDD
8
1
A
- +
B
-
7
BOUT
For mechanical dimensions see web site.
AIN-
AIN+
2
3
+
6
5
BIN-
BIN+
4
GND
8-bump CSP
DESCRIPTION
The DS4812 BiCMOS dual operational amplifier combines high slew rate and rail-to-rail output swing.
The device provides 10V/µs of slew rate and 6.5 MHz of bandwidth while only consuming 1.5 mA of
supply current per channel. Ideal low voltage BiFET substitute for low gain, high speed applications.
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101000
DS4812
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
DD
(see Note 1)............5.5V
Differential Input Voltage (see Note 2)....± V
DD
Input Voltage Range, V
I
(see Note 1) .......-0.3V to V
DD
Input Current, I
DD
.....................................± 4 mA
Output Current, I
O
....................................± 50 mA
Total current into V
DD
..............................± 50 mA
Total current out of GND.........................± 50 mA
Duration of short-circuit current (See Note 3)
unlimited
Operating Temperature ............................0
o
C to +70
o
C
Storage Temperature ................................-55
o
C to +125
o
C
Soldering Temperature.............................See J-STD-020A Specification
NOTES:
1. Relative to GND.
2. Non-inverting input relative to inverting input. Excessive current flows when input is brought below
GND - 0.3V.
3. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to
ensure that the maximum dissipation rating is not exceeded.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
Input Voltage Range
Common-Mode Input Voltage
Free-Air Operating Temperature
SYMBOL
V
DD
V
I
V
CM
T
A
MIN
2.5
0
0
0
TYP
MAX
5.5
V
DD
- 1.7
V
DD
- 1.7
70
UNITS
V
V
V
o
NOTES
1
1
C
NOTES:
1. Voltage referenced to GND.
2 of 19
DS4812
ELECTRICAL CHARACTERISTICS
Conditions: (T
A
: 0°C – 70°C. V
DD
= 3.0V)
PARAMETER
Input Offset Voltage
(V
IC
= 0.5V, R
S
= 50Ω, V
OUT
= 1.5V)
Temperature Coefficient of Input Offset
Voltage
(V
IC
= 0.5V, R
S
= 50Ω, V
OUT
= 1.5V)
Input Offset Current
(V
IC
= 0.5V, R
S
= 50Ω, V
OUT
= 1.5V)
Input Bias Current
(V
IC
= 0.5V, R
S
= 50Ω, V
OUT
= 1.5V)
Common-mode Input Voltage Range
|V
IO
|
≤
10mV
High Level Output Voltage
(I
OH
= -0.5 mA)
Low Level Output Voltage
(I
OL
= 0.5 mA)
Large Signal Differential Voltage
Amplification
(V
IC
= 0.5V, R
L
= 10 kΩ, 1V
≤
V
O
≤
2V)
Common Mode Input Capacitance
Common Mode Rejection Ratio
(0V
≤
V
IC
≤
1.0V, V
O
= 1.5V)
Supply Voltage Rejection Ratio
(3V
≤
V
DD
≤
5V, V
IC
= V
DD
/2 – 1V, no
load)
Amplifier Supply Current (per channel)
(V
O
= 1.5V, no load)
Slew Rate at Unity Gain
(C
L
= 50 pF)
Unity Gain Bandwidth
(C
L
= 50 pF)
Phase Margin at Unity Gain
(C
L
= 50 pF)
Gain Margin
(C
L
= 50 pF)
SYMBOL
V
IO
αV
IO
I
IO
I
IB
V
ICR
V
OH
V
OL
A
VD
c
i(c)
CMRR
k
SVR
I
DD
SR
UGBW
φ
M
5
40
70
60
0
2.5
2.8
0.15
68
4
50
80
1.5
7.5
5.0
54
6
2.5
0.5
MIN
TYP
1
10
1
2
500
500
1.3
MAX
5
UNITS
mV
µV/°C
pA
pA
V
V
V
dB
pF
dB
dB
mA
V/µs
MHz
Degree
dB
NOTES
3 of 19
DS4812
ELECTRICAL CHARACTERISTICS cont.
Conditions: (T
A
: 0°C – 70°C. V
DD
= 5.0V)
PARAMETER
Input Offset Voltage
(V
IC
= 1.5V, R
S
= 50Ω, V
OUT
= 2.5V)
Temperature Coefficient of Input Offset
Voltage
(V
IC
= 1.5V, R
S
= 50Ω, V
OUT
= 2.5V)
Input Offset Current
(V
IC
= 1.5V, R
S
= 50Ω, V
OUT
= 2.5V)
Input Bias Current
(V
IC
= 1.5V, R
S
= 50Ω, V
OUT
= 2.5V)
Common-mode Input Voltage Range
|V
IO
|
≤
10 mV
High Level Output Voltage
(I
OH
= -1.0 mA)
Low Level Output Voltage
(I
OL
= 1.0 mA)
Large Signal Differential Voltage
Amplification
(V
IC
= 1.5V, R
L
= 10 kΩ, 1.5V
≤
V
O
≤
3.5V)
Common Mode Input Capacitance
Common Mode Rejection Ratio
(0V
≤
V
IC
≤
2.7V, V
O
= 2.5V)
Supply Voltage Rejection Ratio
(3V
≤
V
DD
≤
5V, V
IC
= V
DD
/2 – 1V, no load)
Amplifier Supply Current (per channel)
(V
O
= 2.5V, no load)
Slew Rate at Unity Gain
(C
L
= 50 pF)
Unity Gain Bandwidth
(C
L
= 50 pF)
Phase Margin at Unity Gain
(C
L
= 50 pF)
Gain Margin
(C
L
= 50 pF)
SYMBOL
V
IO
αV
IO
I
IO
I
IB
V
ICR
V
OH
V
OL
A
VD
c
i(c)
CMRR
k
SVR
I
DD
SR
UGBW
φ
M
7
45
70
60
0
4.5
4.8
0.15
72
4
55
80
1.75
10
6.5
46
4
2.5
0.5
MIN
TYP MAX
1
10
1
2
500
500
3.3
5
UNITS
mV
µV/°C
pA
pA
V
V
V
dB
pF
dB
dB
mA
V/µs
MHz
Degree
dB
NOTES
4 of 19
DS4812
DISTRIBUTION OF DS4812
INPUT OFFSET VOLTAGE
30%
V
DD
= 3.0 V
Percentage of Amplifiers - %
25%
20%
15%
10%
5%
0%
-2.0
R
L
= 10K
T
A
= 25
o
C
-1.6
-1.2
-0.8
-0.4
0.0
0.4
0.8
V
IO
- Input Offset Voltage - mV
1.2
1.6
2.0
Figure 1.0
DISTRIBUTION OF DS4812
INPUT OFFSET VOLTAGE
35%
Percentage of Amplifiers - %
30%
25%
20%
15%
10%
5%
0%
-2
-1.6
-1.2
-0.8
-0.4
0
0.4
0.8
1.2
1.6
2
V
IO
- Input Offset Voltage - mV
V
DD
= 5.0 V
R
L
= 10K
T
A
= 25
o
C
Figure 2.0
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