FT111SH5U
Voltage Comparator
Voltage Comparator
The FT111 are voltage comparators that have input
currents nearly a thousand times lower than devices like
the LM106 or LM710. They are also designed to operate
over a wider range of supply voltages: from standard
±15V op amp supplies down to the single 5V supply used
for IC logic. Their output is compatible with RTL, DTL and
TTL as well as MOS circuits. Further, they can drive
lamps or relays, switching voltages up to 50V at currents
as high as 50 mA.
Both the inputs and the outputs of the FT111 can be
isolated from system ground, and the output can drive
loads referred to ground, the positive supply or the
negative supply. Offset balancing and strobe capability
are provided and outputs can be wire OR’ed. Although
slower than the LM106 and LM710 (200 ns response
time vs 40 ns) the devices are also much less prone to
spurious oscillations.
The FT111 has the same pin configuration as the
LM106 and LM710.
•
•
•
•
•
Features
Operates from single 5V supply
Input current: 150 nA max. over temperature
Offset current: 20 nA max. over temperature
Differential input voltage range: ±30V
Power consumption: 135 mW at ±15V
Pinout
8‐lead metal can
Top View
Package pinout
Rev. 1
1 of 10
May 2013
FT111SH5U
Absolute Maximum Ratings
Total Supply Voltage 36V
Output to Negative Supply Voltage 50V
Ground to Negative Supply Voltage 30V
Differential Input Voltage ±30V
Input Voltage ±15V
Output Short Circuit Duration 10 sec
Thermal Information
Thermal Resistance (typical) θ
JA
= 170 °C/W (note 1)
θ
JC
= 85 °C/W (note 2)
Maximum Junction Temperature 150⁰C
Lead Temperature
(Soldering, 10 seconds) 300⁰C
Notes:
5.
θ
JA
is measured with component on an
evaluation PC board in free air
6. For θ
JC
“case temp” location is the center of
metal can
Operation Condition
Operating Ambient Temp. Range ‐60⁰C<Ta<+125⁰C
Voltage at Strobe Pin V
+
5V
Electrical Specifications
V
SUPPLY
= ± 15 V
Parameter
Input Offset Voltage
Offset Voltage Drift
Input Bias Current
Input Offset Current
Offset Current Drift
Voltage Gain
Response Time
Saturation Voltage, V
IN
≤ ‐5 mV, I
OUT
= 50 mA
Strobe ON Current
Output Leakage Current
Input Voltage Range, V
+
=15V, V
−
=−15V, Pin 7
Pull‐Up May Go To 5V
Saturation Voltage, V
+
≥4.5V, V
−
=0
V
IN
≤ −6 mV, I
OUT
≤ 8 mA
Output Leakage Current, V
IN
≥ 5 mV, V
OUT
= 35V
Rev. 1
2 of 10
May 2013
Temp., °C
25
125
‐60
25 …. 125
‐60 …. 25
25
125
‐60
25
125
‐60
‐60 to 25
25 to 125
25
125
‐60
25
25
125
‐60
25
25
125
‐60
25
25
125
‐60
25
Min
‐3
‐4
‐4
‐20
‐25
‐
‐
‐
‐10
‐6
‐20
‐0.02
0.003
150
100
100
‐
‐
‐
‐
‐
‐
‐
‐14.5
‐
‐
‐
‐
Typ
0.2
0.8
‐‐0.3
5
‐3
45
25
60
‐0.2
0.2
1.2
0.05
0.07
200
150
180
200
0.6
0.9
0.7
2
0.2
100
‐
13.8,‐14.7
0.23
0.28
0.30
0.1
Max
3
4
4
20
25
75
75
100
10
6
20
0.2
0.1
‐
‐
‐
300
1.0
1.2
1.2
5
10
500
‐
13
0.4
0.4
0.5
0.5
Units
mV
µV/°C
nA
nA
nA/°C
kV/V
ns
V
mA
nA
V
V
µA
FT111SH5U
Rev. 1
3 of 10
May 2013
FT111SH5U
Rev. 1
4 of 10
May 2013
FT111SH5U
Rev. 1
5 of 10
May 2013
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