Features
TS3021
Rail-to-rail 1.8 V high-speed comparator
■ Propagation delay: 38 ns
■ Low current consumption: 73 μA
■ Rail-to-rail inputs
■ Push-pull outputs
■ Supply operation from 1.8 to 5 V
■ Wide temperature range: -40° C to +125° C
■ High ESD tolerance: 5 kV HBM / 300 V MM
■ Latch-up immunity: 200 mA
■ SMD packages
Applications
■ Telecom
■ Instrumentation
■ Signal conditioning
■ High-speed sampling systems
■ Portable communication systems
Description
The TS3021 single comparator features highspeed response time with rail-to-rail inputs. With a
supply voltage specified from 2 to 5 V, this
comparator can operate over a wide temperature
range: -40° C to +125° C.
TS3021
SOT23-5 / SC70-5
Pin connections (top view)
OUT
Vcc-
IN+
1
2
+
3
Vcc+
5
IN-
4
The TS3021 comparator offers micropower
consumption as low as a few tens of
microamperes thus providing an excellent ratio of
power consumption current versus response time.
The TS3021 includes push-pull outputs and is
available in small packages
(SOT23-5 and SC70-5).
December 2008 Rev 5 1/16
www.st.com
16
Absolute maximum ratings and operating conditions TS3021
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
V
R
R
T
T
LEAD
ESD
CC
thja
thjc
stg
T
Supply voltage
ID
IN
Differential input voltage
Input voltage range VDD-0.3 to VCC+0.3 V
Thermal resistance junction to ambient
SC70-5
SOT23-5
Thermal resistance junction to case
SC70-5
SOT23-5
Storage temperature -65 to +150 °C
j
Junction temperature 150 °C
Lead temperature (soldering 10 seconds) 260 °C
Human body model (HBM)
Charged device model (CDM)
Latch-up immunity 200 mA
(1)
(5)
(2)
5.5 V
(3)
±5 V
205
°C/W
250
(3)
172
°C/W
81
(4)
(6)
5000
300
1500
VMachine model (MM)
1. All voltage values, except differential voltage, are referenced to VDD.
2. The magnitude of input and output voltages must never exceed the supply rail ±0.3 V.
3. Short-circuits can cause excessive heating. These values are typical.
4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
5. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
6. Charged device model: all pins and the package are charged together to the specified voltage and then
discharged directly to the ground through only one pin. This is done for all pins.
Table 2. Operating conditions
Symbol Parameter Value Unit
T
oper
Operating temperature range -40 to +125 °C
Supply voltage
V
CC
0°C < T
amb
-40°C < T
< +125°C
< +125°C
amb
1.8 to 5
2 to 5
Common mode input voltage range
V
icm
-40°C < T
+85°C < T
< +85°C
amb
< +125°C
amb
VDD-0.2 to VCC+0.2
VDD to V
CC
V
V
2/16
TS3021 Electrical characteristics
2 Electrical characteristics
Table 3. VCC=+2V, T
= +25° C, full V
amb
range (unless otherwise specified)
icm
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Input offset voltage
ΔV
IO
Input offset voltage drift -40° C < T
IO
I
Input offset current
IO
Input bias current
I
IB
(2)
(2)
-40° C < T
-40° C < T
-40° C < T
No load, output high, V
-40° C < T
I
Supply current
CC
No load, output low, V
-40° C < T
I
Short-circuit current
SC
V
V
Output voltage high
OH
Output voltage low
OL
Source
Sink
I
source
-40° C < T
I
sink
-40° C < T
CMRR Common mode rejection ratio 0 < V
SVR Supply voltage rejection ΔV
TP
TP
Propagation delay
LH
Low to High output level
Propagation delay
HL
High to Low output level
Fall time
T
F
Rise time
T
R
(3)
(4)
CC
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
f = 10 kHz, C
Overdrive = 100 mV
f = 10 kHz, C
Overdrive = 100 mV
< +125° C
amb
< +125° C - 3 20 μV/°C
amb
< +125° C
amb
< +125° C
amb
=0V
< +125° C
amb
icm
-
-
-
-
=0V
< +125° C
amb
icm
-
=1mA
< +125° C
amb
=1mA
< +125° C
amb
< 2 V - 67 - dB
icm
1.88
1.80
-
= 2 to 5 V 58 73 - dB
= 0 V, f = 10 kHz, CL=50pF,
-384860
= 0 V, f = 10 kHz, CL=50pF,
-404960
=50pF, RL=10kΩ,
L
=50pF, RL=10kΩ,
L
-
-
0.5 6
7
120
100
86 160
300
73
90
115
84
105
125
9
10
1.92
-mA
-V
60 100
150
75
75
8
9
-ns
-ns
mV
nA
nA
μA
mV
ns
ns
1. All values over the temperature range are guaranteed through correlation and simulation. No production test is performed
at the temperature range limits.
2. Maximum values include unavoidable inaccuracies of the industrial tests.
3. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
and Non-inverting input voltage (IN+) moving from V
4. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
and Non-inverting input voltage (IN+) moving from V
- 100 mV to V
ICM
+ 100 mV to V
ICM
+ overdrive.
ICM
- overdrive.
ICM
ICM
ICM
3/16
Electrical characteristics TS3021
Table 4. VCC=+3.3V, T
= +25° C, full V
amb
range (unless otherwise specified)
icm
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Input offset voltage
ΔV
IO
Input offset voltage drift -40° C < T
IO
I
Input offset current
IO
I
Input bias current
IB
(2)
(2)
-40° C < T
-40° C < T
-40° C < T
No load, output high, V
-40° C < T
Supply current
I
CC
No load, output low, V
-40° C < T
I
Short circuit current
SC
V
V
Output voltage high
OH
Output voltage low
OL
Source
Sink
I
source
-40° C < T
I
sink
-40° C < T
CMRR Common mode rejection ratio 0 < V
SVR Supply voltage rejection ΔV
TP
Propagation delay
LH
Low to High output level
(3)
CC
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
< +125° C
amb
< +125° C - 3 20 μV/°C
amb
< +125° C
amb
< +125° C
amb
=0V
< +125° C
amb
icm
-
-
-
-
=0V
< +125° C
amb
icm
-
=1mA
< +125° C
amb
=1mA
< +125° C
amb
< 3.3 V - 75 - dB
icm
3.20
3.10
-
= 2 to 5 V 58 73 - dB
= 0 V, f = 10 kHz, CL=50pF,
-395065
0.2 6
7
120
100
86 160
300
75
90
120
86
110
125
26
24
3.25
-mA
-V
40 80
150
85
mV
nA
nA
μA
mV
ns
= 0 V, f = 10 kHz, CL=50pF,
TP
1. All values over the temperature range are guaranteed through correlation and simulation. No production test is performed
2. Maximum values include unavoidable inaccuracies of the industrial tests.
3. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
4. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
Propagation delay
HL
High to Low output level
Fall time
T
F
T
Rise time
R
at the temperature range limits.
and Non-inverting input voltage (IN+) moving from V
and Non-inverting input voltage (IN+) moving from V
(4)
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
f = 10 kHz, C
=50pF,RL=10kΩ,
L
Overdrive = 100 mV
f = 10 kHz, C
=50pF,RL=10kΩ,
L
Overdrive = 100 mV
- 100 mV to V
ICM
+ 100 mV to V
ICM
+ overdrive.
ICM
- overdrive.
ICM
-415165
80
-
-
5
7
-ns
-ns
ICM
ICM
ns
4/16
TS3021 Electrical characteristics
Table 5. VCC=+5V, T
= +25° C, full V
amb
range (unless otherwise specified)
icm
(1)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Input offset voltage
ΔV
IO
Input offset voltage drift -40° C < T
IO
I
Input offset current
IO
I
Input bias current
IB
(2)
(2)
-40° C < T
-40° C < T
-40° C < T
No load, output high, V
-40° C < T
Supply current
I
CC
No load, output low, V
-40° C < T
I
Short circuit current
SC
V
V
Output voltage high
OH
Output voltage low
OL
Source
Sink
I
source
-40° C < T
I
sink
-40° C < T
CMRR Common mode rejection ratio 0 < V
SVR Supply voltage rejection ΔV
TP
Propagation delay
LH
Low to High output level
(3)
CC
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
< +125° C
amb
< +125° C - 3 20 μV/°C
amb
< +125° C
amb
< +125° C
amb
=0V
< +125° C
amb
icm
-
-
-
-
=0V
< +125° C
amb
icm
-
=4mA
< +125° C
amb
=4mA
< +125° C
amb
< 5 V - 79 - dB
icm
4.80
4.70
-
= 2 to 5 V 58 73 - dB
= 0 V, f = 10 kHz, CL=50pF,
-425475
0.2 6
7
120
100
86 160
300
77
95
125
89
115
135
51
40
4.84
-mA
-V
130 180
250
105
mV
mV
nA
nA
μA
ns
= 0 V, f = 10 kHz, CL=50pF,
TP
1. All values over the temperature range are guaranteed through correlation and simulation. No production test is performed
2. Maximum values include unavoidable inaccuracies of the industrial tests.
3. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
4. Response time is measured 10%/90% of final output value with following conditions: Inverting input voltage (IN-) = V
Propagation delay
HL
High to Low output level
Fall time
T
F
T
Rise time
R
at the temperature range limits.
and Non-inverting input voltage (IN+) moving from V
and Non-inverting input voltage (IN+) moving from V
(4)
V
icm
Overdrive = 100 mV
Overdrive = 20 mV
f = 10 kHz, C
=50pF,RL=10kΩ,
L
Overdrive = 100 mV
f = 10 kHz, C
=50pF,RL=10kΩ,
L
Overdrive = 100 mV
- 100 mV to V
ICM
+ 100 mV to V
ICM
+ overdrive.
ICM
- overdrive.
ICM
-455575
95
-
-
4
4
-ns
-ns
ICM
ICM
ns
5/16
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