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081000
FEATURES
Very low operating power:
12
µ
A typical per amplifier
High output sink/source capability
Supply Voltage Range 1.8 to 5.5V
Rail-to-Rail Output Swing
Input offset voltage: 0.95 mV max.
ORDERING INFORMATION
Part Number
Description
DS4802
8-pin DIP
DS4802S
8-pin SOIC
DS4802U
8-pin
µ
-SOP
DS4802X
8-bump Flip-Chip
PACKAGES/PINOUTS
A
- +
B
-
+
AOUT
AIN-
AIN+
GND
VDD
BOUT
BIN-
BIN+
1
2
3
4
5
6
7
8
300-mil DIP
150-mil SOIC
118-mil
µ
-
SOP
8-bump Flip-Chip
DESCRIPTION
The DS4802 BiCMOS dual operational amplifier combines low input offset voltage, very low power
consumption, rail-to-rail output swing, and excellent DC precision. With a maximum input offset voltage
of 0.95 mV, a maximum I
DD
of 25
µ
A/amplifier, and 10 pA typical input bias current, the DS4802 is ideal
for measurement, medical, and industrial applications. The DS4802 is also ideal for portable applications
with 1.8 volt to 5.5 volt single supply voltage operation and low power consumption.
www.dalsemi.com
DS4802
Low Voltage, Micro Power, High
Performance, Rail-To-Rail Dual Op-Amp
PRELIMINARY
B
A
-
+
-
+
VDD
AOUT
AIN-
AIN+
GND
BIN+
BIN-
BOUT
4
7
8
3
5
2
1
6
For mechanical dimensions see website.
DS4802
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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
260
o
C for 10 seconds
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
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Supply Voltage
V
DD
1.8
5.5
V
1
Input Voltage Range
V
I
GND
V
DD
- 1.0
V
1
Common-Mode Input Voltage
V
IC
GND
V
DD
- 1.0
V
Free-Air Operating Temperature
T
A
0
70
o
C
Notes:
1.
Voltage referenced to GND.
DS4802
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ELECTRICAL CHARACTERISTICS
(TA: 0
°
C 70
°
C. VDD = 1.8V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
Input Offset Voltage
(V
IC
= 0.5V, R
S
= 50
, V
OUT
= V
DD
/2)
V
IO
0.1
0.95
mV
Temperature Coefficient of Input
Offset Voltage
(V
IC
= 0.5V, R
S
= 50
, V
OUT
= V
DD
/2)
V
IO
2
µ
V/
°
C
Input Offset Current
(R
S
= 50
)
I
IO
5
500
pA
Input Bias Current
(R
S
= 50
)
I
IB
10
500
pA
Common-mode Input Voltage Range
(|VIO|
5 mV, R
S
= 50
)
V
ICR
0 to 1
-0.3 to
1.2
V
High Level Output Voltage
(I
OH
= -50 µA)
(I
OH
= -500 µA)
V
OH
1.5
1.785
1.65
V
Low Level Output Voltage
(I
OL
= 50 µA)
(I
OL
= 500 µA)
V
OL
10
100
200
mV
Large Signal Differential Voltage
Amplification
(V
IC
= 0.5V, 0.4V
V
O
1.4V) R
L
=
100 k
(V
IC
= 0.5V, 0.4V
V
O
1.4V) R
L
=
10 k
A
VD
65
55
75
65
dB
Input Resistance
R
IN
>10
12
Common Mode Input Capacitance
c
i(c)
24.0
pF
Common Mode Rejection Ratio
(0V
V
IC
0.8V, R
S
= 50
, V
O
=
V
DD
/2)
CMRR
60
75
dB
Supply Voltage Rejection Ratio
(1.8V
V
DD
3.6V, V
IC
= V
DD
/2, no
load)
k
SVR
70
85
dB
Amplifier Supply Current (per
channel)
(V
O
= V
DD
/2, no load)
I
DD
12
25
µ
A
Slew Rate at Unity Gain
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
SR
10
15
V/ms
DS4802
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PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
Equivalent Input Noise Voltage
(f = 10 Hz)
(f = 1 kHz)
V
N
120
60
nV/
Hz
Unity Gain Bandwidth Product
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
UGBW
31
kHz
Phase Margin at Unity Gain
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
M
60
Degree
Gain Margin
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
17
dB
ELECTRICAL CHARACTERISTICS cont.
(T
A
: 0
°
C 70
°
C. V
DD
= 3.0V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
Input Offset Voltage
(V
IC
= 1.5V, R
S
= 50
, V
OUT
= V
DD
/2)
V
IO
0.1
0.95
mV
Temperature Coefficient of Input
Offset Voltage
(V
IC
= 1.5V, R
S
= 50
, V
OUT
= V
DD
/2)
V
IO
2
µV/
°
C
Input Offset Current
(R
S
= 50
)
I
IO
5
500
pA
Input Bias Current
(R
S
= 50
)
I
IB
10
500
pA
Common-mode Input Voltage Range
(|VIO|
5 mV, R
S
= 50
)
V
ICR
0 to 2
-0.3 to
2.2
V
High Level Output Voltage
(I
OH
= -200 µA)
(I
OH
= -2 mA)
V
OH
2.4
2.97
2.7
V
Low Level Output Voltage
(V
IC
= 1.5V, I
OL
= 200 µA)
(V
IC
= 1.5V, I
OL
= 2 mA)
V
OL
24
240
500
mV
Large Signal Differential Voltage
Amplification
(V
IC
= 1.5V, 0.5V
V
O
2.5V) R
L
=
100 k
(V
IC
= 1.5V, 0.5V
V
O
2.5V) R
L
=
10k
A
VD
70
60
80
70
dB
Input Resistance
R
IN
>10
12
Common Mode Input Capacitance
c
I(c)
24.0
pF
Common Mode Rejection Ratio
CMRR
65
80
dB
DS4802
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PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS NOTES
(0V
V
IC
2V, R
S
= 50
, V
O
=
V
DD
/2)
Supply Voltage Rejection Ratio
(1.8V
V
DD
3.6V, V
IC
= V
DD
/2, no
load)
k
SVR
70
85
dB
Amplifier Supply Current (per
channel)
(V
O
= V
DD
/2, no load)
I
DD
12
25
µA
Slew Rate at Unity Gain
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
SR
10
15
V/ms
Equivalent Input Noise Voltage
(f = 10 Hz)
(f = 1 kHz)
V
N
120
60
nV/
Hz
Unity Gain Bandwidth Product
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
UGBW
35
kHz
Phase Margin at Unity Gain
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
M
60
Degree
Gain Margin
(R
L
= 100 k
, C
L
= 100 pF tied to
V
DD
/2)
17
dB
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