TSM109/A
Dual Comparator and Voltage Reference
COMPARATOR
s
s
s
s
s
s
s
Low supply current (1.1ma) independent of
supply voltage
Low input bias current: 25nA typ
Low input offset voltage: ±1mV typ
Input common-mode voltage range
includes ground
Low output saturation voltage: 250mV typ
(Io = 4mA)
Differential input voltage range equal to the
supply voltage
Wide power supply range: ±1V to ±18V
Package Reference
N
DIP-8
VOLTAGE REFERENCE
s
s
s
Fixed V
ref
to 2.5V
0.4% and 1% voltage precision
Sink current capability: 1 to 100mA
D
SO-8
ORDER CODE
Part
Number
TSM109
TSM109A
DESCRIPTION
The TSM109 is a monolithic IC that includes two
comparators and a shunt voltage reference. This
device offers space and cost savings in many
applications including power supply management
or data acquisition systems.
Temperature
Range
-40°C, +105°C
-40°C, +105°C
Package
N
•
•
D
•
•
Note: N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape &
Reel (DT)
PIN CONNECTIONS
(top view)
1
Out
Vcc
8
2
Vref
Out
7
3
Ve+
Ve-
6
4
Gnd
Ve+
5
February 2004
1/7
TSM109/A
1
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Input Voltage
Continuous Cathode current range
Maximum Junction Temperature
Thermal Resistance Junction to Ambient (SO package)
Electrostatic Discharge Protection
Absolute Maximum Ratings
Symbol
VCC
Vin
Ik
T
j
R
thja
ESD
Value
36
-0.3 to V
cc
+0.3
-100 to 150
150
175
1.5
Unit
V
V
mA
°C
°C/W
kV
OPERATING CONDITIONS
Symbol
Vcc
Toper
DC Supply Conditions
Operational temperature
Parameter
Value
2 to 36
-40 to105
Unit
V
°C
ELECTRICAL CHARACTERISTICS
V
CC+
= 5V, V
CC-
= 0V, T
amb
= 25°C (unless otherwise specified)
Symbol
I
CC
Parameter
Total Supply Current, excluding current in the Voltage
Reference
V
CC
= +5V, no load
V
CC
= +30V, no load
Min
Typ
Max
Unit
0.4
1
1
2.5
mA
2/7
Electrical Characteristics
2
ELECTRICAL CHARACTERISTICS
TSM109/A
COMPARATOR
(independent comparator)
V
CC
+
= +5V, V
CC
-
= GND, T
amb
= +25°C (unless otherwise specified)
Symbo
l
V
io
Input Offset Voltage - note
1
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Input Offset Current
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Input Bias Current (I
+
or I
-
) - note
2
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
Ω,
V
o
= 1V to 11V
Input Common Mode Voltage Range - note
3
V
CC
= 30V
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Differential Input Voltage -note
4
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
High Level Output Current (V
id
= 1V)
I
OH
V
CC
= V
o
= 30V
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
Response Time - note
5
R
L
= 5.1k
Ω
connected to V
CC+
Large Signal Response Time
R
L
= 5.1k
Ω
connected to V
CC+
, e
l
= TTL,
V
(ref)
= +1.4v
10
30
150
1
nA
µ
A
mA
50
TSM109
Parameter
Min. Typ.
1
Unit
Max.
5
9
25
100
250
400
mV
I
io
3
nA
I
ib
25
nA
A
vd
200
V/mV
V
icm
0
0
V
CC+
-1.5
V
CC
-2
V
CC+
+
V
V
id
V
OL
250
400
700
mV
I
sink
t
re
20
1.3
µ
s
t
rel
300
ns
1)
2)
3)
4)
At output switch point, V
o
≈
1.4V, R
s
= 0 with V
CC +
from 5V to 30V, and over the full common-mode range (0V to V
CC+
-1.5V).
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the
state of the output, so no loading charge exists on the reference of input lines.
The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end
of the common-mode voltage range is V
CC+
-1.5V.
Positive voltage excursions of one input may exceed the power supply level. As long as the other input voltage remains within the
common-mode range, the comparator will provide an appropriate output state. The low input voltage state must not be less than -0.3V
(or 0.3V below the negative power supply, if used).
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals, 300ns can be obtained
5)
3/7
TSM109/A
Electrical Characteristics
COMPARATOR
(comparator with inverting input connected to the internal Vref))
V
CC
+
= +5V, V
CC
-
= GND, T
amb
= +25°C (unless otherwise specified)
Symbo
l
V
io
Input Offset Voltage - note
1
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Input Bias Current for positive input note
2
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Large Signal Voltage Gain
V
CC
= 15V, R
L
= 15k
Ω,
V
o
= 1V to 11V
Differential Input Voltage -note
50
TSM109
Parameter
Min. Typ.
1
Unit
Max.
5
9
250
400
mV
I
ib
25
nA
A
vd
V
id
200
V
CC+
-2.5V
V/mV
V
V
OL
Low Level Output Voltage
V
id
= -1V, I
sink
= 4mA
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
High Level Output Current (V
id
= 1V)
V
CC
= V
o
= 30V
T
amb
= +25°C
T
min
≤
T
amb
≤
T
max
Output Sink Currrent
V
id
= 1V, V
o
= 1.5V
Response Time - note
3
R
L
= 5.1k
Ω
connected to V
CC+
Large Signal Response Time
R
L
= 5.1k
Ω
connected to V
CC+
, e
l
= TTL,
V
(ref)
= +1.4v
10
250
400
700
mV
I
OH
30
150
1
nA
µ
A
mA
I
sink
t
re
20
1.3
µ
s
t
rel
300
ns
1)
2)
3)
At output switch point, V
o
≈
1.4V, R
s
= 0 with V
CC +
from 5V to 30V, and over the full common-mode range (0V to V
CC+
-1.5V).
The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the
state of the output, so no loading charge exists on the reference of input lines.
The response time specified is for a 100mV input step with 5mV overdrive. For larger overdrive signals, 300ns can be obtained.
4/7
Electrical Characteristics
ELECTRICAL CHARACTERISTICS
VOLTAGE REFERENCE
Symbol
I
K
Cathode Current
TSM109/A
Conditions
Value
1 to 100
Unit
mA
T
amb
= 25°C (unless otherwise specified)
Symbo
l
TSM109A
Parameter
Min.
Reference Input Voltage, I
K
= 10 mA
T
amb
= 25°C
T
min
≤
T
amb
≤
T
max
Reference Input Voltage Deviation OverTemperature
Range I
K
= 10 mA
T
min
≤
T
amb
≤
T
max
TSM109
Unit
Typ. Max.
V
Typ. Max. Min.
V
ref
2.490 2.500 2.510 2.475 2.500 2.525
2.48
2.52
2.45
2.55
∆
V
ref
7
30
7
30
mV
Temperature Coefficient of Reference Input Voltage
I
K
= 10 mA,
∆
Vref
------------------- T
min
≤
T
amb
≤
T
max
-
Vref
∆
T
I
min
|Z
Vref
|
Minimum Cathode Current for Regulation
Dynamic Impedance - note
1
∆
V
ref
,
∆
I
K
= 1 to 100mA, f < 1KHz
±13
0.5
0.3
±90
1
0.65
±13
0.5
0.3
±90
1
0.65
ppm/°C
mA
Ω
1) The dynamic impedance is defined as [Z
Vref
| =
∆
V
Vref
/
∆
I
K
5/7
