Rev.1.2
_02
MINI ANALOG SERIES
0.7
µ
A RAIL-TO-RAIL CMOS COMPARATOR
S-8953xA/B Series
The mini analog series is a group of ICs that incorporate a general-
purpose analog circuit in an ultra-small packages.
The S-8953xA/B Series are CMOS type comparators that feature
*1
Rail-to-Rail I/O and can be driven at a lower voltage and with lower
current consumpsion than existing comparators, making the S-
8953xA/B ideal for use in battery-powered compact portable devices.
*1.
Rail-to-Rail is a registered trademark of Motorola Inc.
Features
Can be driven lower voltage than existing
general-purpose comparators:
Low current consumption:
Rail-to-Rail
*1
Applications
Cellular phones
PDAs
Notebook PCs
Digital cameras
Digital video cameras
V
DD
=
0.9 V to 5.5 V
I
DD
=
0.7
µA
(Typ.)
V
CMR
=
V
SS
to V
DD
wide input and output voltage range:
5.0 mV max.
2.0 mm
×
2.1 mm
2.9 mm
×
3.0 mm
Low input offset voltage:
Small package: 5-Pin SC-88A
8-Pin SON (A)
Packages
5-Pin SC-88A (package drawing code: NP005-B)
8-Pin SON(A) (package drawing code: PN008-A)
Selection Guide
Input Offset Voltage
V
IO
=
10 mV max.
V
IO
=
5 mV max.
Table 1
Product Name (Single)
S-89530ACNC-HCB-TF
S-89531ACNC-HCC-TF
Product Name (Dual)
S-89530BCPN-HFB-TF
S-89531BCPN-HFC-TF
Seiko Instruments Inc.
1
Rev.1.2
_02
MINI ANALOG SERIES 0.7
µA
RAIL-TO-RAIL CMOS COMPARATOR
S-8953xA/B Series
Absolute Maximum Ratings
Table 2
Parameter
Power supply voltage
Input voltage
Output voltage
Differential input voltage
SC-88A
Power dissipation
8-Pin SON(A)
Operating temperature
Storage temperature
(Ta
=
25°C unless otherwise specified)
Symbol
Ratings
Unit
V
DD
−
V
SS
7.0
V
V
IN
V
SS
to V
DD
V
V
OUT
V
SS
to V
DD
V
V
IND
±5.5
V
200
P
D
mW
300
T
opr
−40
to
+85
°C
T
stg
−55
to
+125
°C
Caution The absolute maximum ratings are rated values exceeding which the
product could suffer physical damage. These values must therefore not be
exceeded under any conditions.
Recommended Operating Power Supply Voltage Range
Table 3
Parameter
Operating power supply voltage range
Symbol
V
DD
Range
0.9 V to 5.5 V
2
Seiko Instruments Inc.
MINI ANALOG SERIES 0.7
µA
RAIL-TO-RAIL CMOS COMPARATOR
S-8953xA/B Series
Pin Configuration
5-Pin SC-88A
Top View
VDD
OUT
5
+
−
4
Rev.1.2
_02
8-Pin SON(A)
Top View
OUT1 VDD OUT2 VSS
8
7
6
5
−
1
IN(+)
2
VSS
3
IN(−)
+
2
3
−
+
4
1
IN1(−) IN1(+) IN2(−) IN2(+)
(S-8953xACNC)
Figure 1
Table 4 Pin Description (S-8953xACNC)
Pin
Symbol
No.
1
2
3
4
5
IN(+)
VSS
IN(−)
OUT
VDD
Description
Non-inverting input pin
GND pin
Inverted input pin
Output pin
Positive power supply pin
Internal
Equivalent
Circuit
Figure 4
Figure 4
Figure 3
Figure 5
Pin
No.
1
2
3
4
5
6
7
8
(S-8953xBCPN)
Figure 2
Table 5 Pin Description (S-8953xBCPN)
Symbol
IN1(−)
IN1(+)
IN2(−)
IN2(+)
VSS
OUT2
VDD
OUT1
Description
Inverted input pin 1
Non-inverted input pin 1
Inverted input pin 2
Non-inverted input pin 2
GND pin
Output pin 2
Positive power pin
Output pin 1
Internal
Equivalent
Circuit
Figure 4
Figure 4
Figure 4
Figure 4
Figure 3
Figure 5
Figure 3
[Internal equivalent circuits]
(1) Output pin
VDD
(2) Input pin
VDD
(3) VDD pin
VDD
VSS
VSS
VSS
Figure 3
Figure 4
Figure 5
Seiko Instruments Inc.
3
Rev.1.2
_02
MINI ANALOG SERIES 0.7
µA
RAIL-TO-RAIL CMOS COMPARATOR
S-8953xA/B Series
Electrical Characteristics
The S-89530ACNC and S-89531ACNC, and the S-89530BCPN and S-89531BCPN only differ in the input
offset voltage. All other specifications are the same.
1. V
DD
=
3.0 V
DC Characteristics (V
DD
=
3.0 V)
Table 6
Parameter
Supply current
(per circuit)
Input offset voltage
Input offset current
Input bias current
Common-mode input
voltage range
Voltage gain (open loop)
Maximum output swing
voltage
Common-mode input
signal rejection ratio
Power supply voltage
rejection ratio
Source current
Sink current
*1
Symbol
I
DDH
I
DDL
V
IO
I
IO
I
BIAS
V
CMR
A
VOL
V
OH
V
OL
Conditions
V
IN1
=
V
SS
, V
IN2
=
V
DD
, R
L
= ∞
V
IN1
=
V
DD
, V
IN2
=
V
SS
, R
L
= ∞
S-89530A/B: V
CMR
=
1.5 V
S-89531A/B: V
CMR
=
1.5 V
V
CMR
=
1.5 V, R
L
=
1 MΩ
R
L
=
1 MΩ
R
L
=
1 MΩ
(Ta
=
25°C unless otherwise specified)
Measurement
Min. Typ. Max. Unit
circuit
−10
−5
0
2.98
45
66
380
400
0.7
0.25
±5
±3
1
1
86
65
75
500
550
1.4
0.5
+10
+5
3.0
0.02
µA
mV
pA
V
dB
V
dB
dB
µA
µA
Figure 11
Figure 7
Figure 8
Figure 9
Figure 10
Figure 8
Figure 6
Figure 12
Figure 13
CMRR V
SS
≤
V
CMR
≤
V
DD
PSRR V
DD
=
0.9 V to 5.5 V
I
SOURCE
I
SINK
V
OUT
=
V
DD
−
0.1 V
V
OUT
=
0 V
V
OUT
=
0.1 V
V
OUT
=
V
DD
4000 5500
4800 6000
*1.
Be sure to use the product with a source current of no more than 7 mA.
AC Characteristics (V
DD
=
3.0 V)
Table 7
(Ta
=
25°C, unless otherwise specified)
Parameter
Rise propagation
delay time
Fall propagation
delay time
Output rise time
Output fall time
Symbol
t
PLH
t
PHL
t
TLH
t
THL
Overdrive
=
100 mV
C
L
=
15 pF
(Refer to
Figure 14.)
Conditions
Min.
Typ.
110
280
10
30
Max.
µs
Unit
4
Seiko Instruments Inc.
MINI ANALOG SERIES 0.7
µA
RAIL-TO-RAIL CMOS COMPARATOR
S-8953xA/B Series
2. V
DD
=
1.8 V
DC Characteristics (V
DD
=
1.8 V)
Table 8
Parameter
Supply current
(per circuit)
Input offset voltage
Input offset current
Input bias current
Common-mode input
voltage range
Voltage gain (open loop)
Maximum output swing
voltage
Common-mode input
signal rejection ratio
Power supply voltage
rejection ratio
Source current
Sink current
Symbol
I
DDH
I
DDL
V
IO
I
IO
I
BIAS
V
CMR
A
VOL
V
OH
V
OL
CMRR
Conditions
V
IN1
=
V
SS
, V
IN2
=
V
DD
, R
L
= ∞
V
IN1
=
V
DD
, V
IN2
=
V
SS
, R
L
= ∞
S-89530A/B: V
CMR
=
0.9 V
S-89531A/B: V
CMR
=
0.9 V
V
CMR
=
0.9 V, R
L
=
1 MΩ
R
L
=
1 MΩ
R
L
=
1 MΩ
V
SS
≤
V
CMR
≤
V
DD
V
SS
≤
V
CMR
≤
V
DD
−
0.2 V
Rev.1.2
_02
(Ta
=
25°C unless otherwise specified)
Measurement
Min. Typ. Max. Unit
circuit
−10
−5
0
1.78
35
45
66
200
220
0.7
0.25
±5
±3
1
1
80
55
60
75
250
300
1.4
0.5
+10
+5
1.8
0.02
µA
mV
pA
V
dB
V
dB
dB
µA
µA
Figure 11
Figure 7
Figure 8
Figure 9
Figure 10
Figure 8
Figure 6
Figure 12
Figure 13
PSRR V
DD
=
0.9 V to 5.5 V
I
SOURCE
I
SINK
V
OUT
=
V
DD
−
0.1 V
V
OUT
=
0 V
V
OUT
=
0.1 V
V
OUT
=
V
DD
1000 1500
1200 1800
AC Characteristics (V
DD
=
1.8 V)
Table 9
(Ta
=
25°C unless otherwise specified)
Parameter
Rise propagation
delay time
Fall propagation
delay time
Output rise time
Output fall time
Symbol
t
PLH
t
PHL
t
TLH
t
THL
Overdrive
=
100 mV
C
L
=
15 pF
(Refer to
Figure 14.)
Conditions
Min.
Typ.
90
160
8
25
Max.
µs
Unit
Seiko Instruments Inc.
5
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