TS94x, TS94xA, TS94xB
Output rail-to-rail micropower operational amplifiers
Features
■ Rail-to-rail output voltage swing
■ Micropower consumption (1.2 µA)
■ Single supply operation (2.5 V to 10 V)
■ CMOS inputs
■ Ultra low input bias current (1 pA)
■ ESD protection (2 kV)
■ Latch-up immunity (class A)
■ Available in SOT23-5 micropackage
Applications
■ Battery-powered systems (alarm)
■ Portable communication systems (pagers)
■ Smoke/gas/fire detectors
■ Instrumentation and sensoring
■ PH meter
Description
The TS94x (single, dual and quad) series are
operational amplifiers characterized for 2.5 V to
10 V operation over a -40° C to +85° C
temperature range.
They exhibit excellent consumption -1.2 µA, while
featuring 10 kHz gain bandwidth product, 1.5 mA
output capability and output rail-to-rail operation
- 2.85 V typical at 3 V with R
The TS94x op-amps are ideal for battery-powered
systems, where very low supply current and
output rail-to-rail are required. Their very low
- 1 pA typical input bias current and constant
supply current over supply voltage enhance the
devices’ performance near the end of the battery
charge or battery life.
=10 kΩ.
L
TS941ILT
Output
Non-inverting input
1
V
2
DD
3
V
5
CC
Inverting input
4
TS941ID-TS941IDT
N.C.
N.C.
Inverting Input 1
Non-inverting Input 1
V
1
2
-
+
3
4
DD
8
V
7
6
Output 2
N.C.
5
CC
TS942ID-TS942IDT-TS942IPT
Output 1
Inverting Input 1
Non-inverting Input 1
V
1
-
2
+
3
45
DD
V
8
CC
Output 2
7
-
Inverting Input 2
6
+
Non-inverting Input 2
TS944ID-TS944IDT-TS944IPT
Output 4
Output 1
1
Inverting Input 1
Non-inverting Input 1
Non-inverting Input 2
Inverting Input 2
Table 1. Device summary
V
Output 2
2
-
+
3
4
CC
5
+
-
6
7
Reference Selection on offset voltage
TS94x TS941, TS942, TS944
TS94xA TS941A, TS942A, TS944A
14
13
-
+
12
11
10
+
-
9
8
Inverting Input 4
Non-inverting Input 4
V
DD
Non-inverting Input 3
Inverting Input 3
Output 3
TS94xB TS941B, TS942B, TS944B
October 2009 Doc ID 6972 Rev 6 1/18
www.st.com
18
Absolute maximum ratings and operating conditions TS94x, TS94xA, TS94xB
1 Absolute maximum ratings and operating conditions
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
V
id
V
in
T
stg
T
R
thja
R
thjc
ESD
Supply voltage
Differential input voltage
Input voltage range
Storage temperature range -65 to +150 °C
Maximum junction temperature 150 °C
j
Thermal resistance junction to ambient
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
Thermal resistance junction to case
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
HBM: human body model
MM: machine model
CDM: charged device model
TS941 - TS944IDT
TS942 - TS944IPT
Latch-up immunity 200 mA
Lead temperature (soldering, 10sec) 250 °C
(1)
(2)
(3)
(5)
(6)
(TS941, TS942)
(7)
(4)
12 V
± V
CC
V
VDD-0.3 to VCC+0.3 V
(4)
250
125
103
°C/W
120
100
81
40
31
°C/W
37
32
2kV
200 V
1.5
kV
1
1. All voltage values, except differential voltage are with respect to network terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of input and output voltages must never exceed VCC +0.3 V.
4. Short-circuits can cause excessive heating and destructive dissipation. Rth are typical values.
5. 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.
6. 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.
7. 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.
2/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Absolute maximum ratings and operating conditions
Table 3. Operating conditions
Symbol Parameter Value Unit
V
V
T
CC
icm
oper
Supply voltage 2.5 to 10 V
Common mode input voltage range VDD -0.2 to VCC -1.3 V
Operating free air temperature range -40 to + 85 °C
Doc ID 6972 Rev 6 3/18
Electrical characteristics TS94x, TS94xA, TS94xB
2 Electrical characteristics
Table 4. VCC = +2.5 V, VDD = 0 V, RL connected to VCC/2, T
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Input offset voltage
V
io
ΔV
io
I
io
I
ib
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 78 dB
TS941/2/4
TS941/2/4A
TS941/2/4B
Input offset voltage drift 7 µV/°C
Input offset current
Input bias current
(1)
(1)
= 25° C
amb
1 100 pA
1 150 pA
10
5
mV
2
A
Large signal voltage gain
vd
= 2 Vpp, RL = 1 MΩ
V
O
High level output voltage
V
OH
= 100 mV, RL = 1 MΩ
V
ID
RL = 10 kΩ
Low level output voltage
V
OL
= -100 mV, RL = 1 MΩ
V
ID
RL = 10 kΩ
Output source current
VID = 100 mV, VO = V
Output sink current
= -100 mV, VO = V
V
ID
Supply current (per amplifier), A
I
I
CC
o
GBP Gain bandwidth product, R
SR Slew rate, R
= 1 MΩ, CL = 50 pF 3 4.5 V/ms
L
φm Phase margin, C
1. Maximum values include unavoidable inaccuracies of the industrial tests.
DD
CC
= 1, no load 1.2 1.8 µA
VCL
= 1 MΩ, CL = 50 pF 10 kHz
L
= 50 pF 65 Degrees
L
2.45
2.3
350
280
100 dB
2.49
2.4
1
mV
1005200
650
µA
500
V
4/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Electrical characteristics
Table 5. VCC = +3 V, VDD = 0 V, RL connected to VCC/2,T
(unless otherwise specified)
(1)
Symbol Parameter Min. Typ. Max. Unit
Input offset voltage
V
io
TS941/2/4
TS941/2/4A
TS941/2/4B
ΔV
I
I
Input offset voltage drift 7 µV/°C
io
Input offset current
io
Input bias current
ib
(2)
(2)
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 85 dB
A
Large signal voltage gain
vd
= 2 Vpp,RL = 1 MΩ
V
O
High level output voltage
V
OH
= 100 mV, RL = 1 MΩ
V
ID
RL = 10 kΩ
Low level output voltage
V
OL
VID = -100 mV, RL = 1 MΩ
= 10 kΩ
R
L
Output source current
= 100 mV, VO = V
V
ID
Output sink current
= -100 mV, VO = V
V
ID
Supply current (per amplifier), A
I
I
CC
o
GBP Gain bandwidth product, R
SR Slew rate, R
= 1 MΩ, CL = 50 pF 3 4.5 V/ms
L
φm Phase margin, C
1. All electrical values are guaranteed with correlation measurements at 2.5 V and 5 V.
2. Maximum values include unavoidable inaccuracies of the industrial tests.
DD
CC
= 1, no load 1.2 1.8 µA
VCL
= 1 MΩ, CL = 50 pF 10 kHz
L
= 50 pF 65 Degrees
L
amb
2.9
2.8
680
650
= 25° C
10
5
2
1 100 pA
1 150 pA
100 dB
2.99
2.85
1
1005200
1500
1300
mV
V
mV
µA
Doc ID 6972 Rev 6 5/18
Electrical characteristics TS94x, TS94xA, TS94xB
Table 6. VCC = +5 V, VDD = 0 V, RL connected to VCC/2, T
amb
= 25° C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Input offset voltage
V
io
TS941/2/4
TS941/2/4A
TS941/2/4B
ΔV
I
I
Input offset voltage drift 7 µV/°C
io
Input offset current
io
Input bias current
ib
(1)
(1)
CMR Common mode rejection ratio 60 85 dB
SVR Supply voltage rejection ratio 50 85 dB
A
Large signal voltage gain
vd
= 2 Vpp, RL = 1 MΩ
V
O
100 dB
High level output voltage
V
OH
= 100 mV, RL = 1 MΩ
V
ID
RL = 10 kΩ
4.9
4.8
4.99
4.85
Low level output voltage
V
OL
VID = -100 mV, RL = 1 MΩ
= 10 kΩ
R
L
1005150
Output source current
= 100 mV, VO = V
V
ID
Output sink current
= -100 mV, VO = V
V
ID
Supply current (per amplifier), A
I
I
CC
o
GBP Gain bandwidth product, R
SR Slew rate, R
= 1 MΩ, CL = 50 pF 3 4.5 V/ms
L
φm Phase margin, C
1. Maximum values include unavoidable inaccuracies of the industrial tests.
DD
CC
= 1, no load 1.2 1.85 µA
VCL
= 1 MΩ, CL = 50 pF 10 kHz
L
= 50 pF 65 Degrees
L
3
3.7
4.5
10
5
mV
2
1 100 pA
1 150 pA
V
1
mV
mA
5
6/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Electrical characteristics
in Overdrive
pp
Supply Voltage
Output Voltage
Figure 1. Supply current per amplifier vs.
supply voltage in overdrive
1.5
Tamb = 25°C
1.0
0.5
Supply Current (µA)
0.0
0246810
Vid = - 100mV
Vid = + 100mV
Supply Voltage (V)
Figure 3. Output short-circuit current vs.
temperature
6
4
2
0
Isink, Vcc=5V
Isink, Vcc=3V
Isource,Vcc=3V
Figure 2. Supply current per amplifier vs.
supply voltage
2.0
Tamb = 25°C
1.5
1.0
Supply Current (µA)
0.5
0.0
0246810
Supply Voltage (V)
Figure 4. Supply current per amplifier vs.
temperature
1.30
1.25
Vcc from 2.5V to 10V
1.20
-2
-4
Output Short-circuit Current (mA)
-6
-40 -20 0 20 40 60 80
Temperature (°C)
Figure 5. Output short-circuit current vs.
Isource, Vcc=5V
Figure 6. Output short-circuit current vs.
supply voltage
30
Tamb = 25°C
20
10
0
-10
-20
Output Short-Circuit Current (mA)
-30
24 6810
Sink
Source
Supply Voltage (V)
1.15
Supply Current (µA)
1.10
-40-200 20406080
Temperature (°C)
output voltage
8.0
6.0
4.0
2.0
0.0
-2.0
T = +85°C
-4.0
T = +25°C
-6.0
Output Short-Circuit Current (mA)
T = -40°C
-8.0
012345
Sink
Vcc = 5V
Source
Output Voltage (V)
T = -40°C
T = +25°C
T = +85°C
Doc ID 6972 Rev 6 7/18
Electrical characteristics TS94x, TS94xA, TS94xB
pg
Low Level Output Voltage vs Supply Voltage
pg
qy
Figure 7. Output short-circuit current vs.
output voltage
1.0
T = -40°C
0.5
0.0
T = +25°C
T = +25°C
T = +85°C
-0.5
T = +85°C
-1.0
T = +25°C
-1.5
Output Short-Circuit Current (mA)
-2.0
T = -40°C
0
Sink
Vcc = 2.6V
2.5
Source
1
Output Voltage (V)
2
Figure 9. Output short-circuit current vs.
output voltage
2.0
1.0
0.0
-1.0
-2.0
Output Short-Circuit Current (mA)
-3.0
T = -40°C
T = +25°C
T = +85°C
Sink
Vcc = 3V
T = +85°C
T = +25°C
T = -40°C
Source
01 2
Output Voltage (V)
Figure 8. High level output voltage vs. supply
voltage
1,000
100
Voltage referenced to Vdd (mV)
Voltage Referenced to Vcc (mV)
3
High Level Output Voltage vs Supply Voltage
RL=10k ohm
RL tied to Vdd
Single Supply
Vid = +100mV
10
1
246 810
Supply Voltage (V)
RL=100k ohm
RL=1M ohm
Figure 10. Low level output voltage vs. supply
voltage
1,000
RL=10k ohm
100
10
Voltage referenced to Vcc (mV)
3
RL tied to Vcc
Single Supply
Vid = -100mV
1
246 810
RL=100 ohm
RL=1M ohm
Supply Voltage (V)
Figure 11. Output short-circuit current vs.
output voltage
30.0
Sink
20.0
10.0
0.0
-10.0
-20.0
Output Short-Circuit Current (mA)
T = +85°C
T = +25°C
T = -40°C
-30.0
0246810
8/18 Doc ID 6972 Rev 6
T = -40°C
Vcc = 10V
Output Voltage (V)
T = +25°C
T = +85°C
Source
Figure 12. Gain and phase vs. frequency
70
60
50
40
30
Gain (dB)
20
10
0
100 1,000 10,000 100,000
RL = 1M ohm
CL = 50 pF
Vcc = 3V & 5V
phase
gain
Frequency (Hz)
180
160
140
120
100
80
60
40
Phase (°)
TS94x, TS94xA, TS94xB Electrical characteristics
gp
qy
p
ageSga ase espose
Figure 13. Small signal transient response Figure 14. Gain and phase versus frequency
300
Vcc = +-2.5V
200
100
0
Output Voltage (mV)
-100
0.0 0.5 1.0 1.5 2.0
Time (ms)
Gain = -1
RL = 1M ohm
CL = 50 pF
Figure 15. Slew rate positive and negative vs.
70
60
50
40
30
Gain (dB)
20
10
0
100 1,000 10,000 100,000
RL = 1M ohm
CL = 100 pF
Vcc = 3V & 5V
phase
gain
Frequency (Hz)
180
160
140
120
100
80
60
40
Figure 16. Large signal transient response
temperature
4.8
Slew rate negative
4.6
4.4
4.2
Slew rate positive
4.0
Gain = +1
3.8
Slew Rate (V/ms)
3.6
RL = 1M ohm
CL = 100pf
Vcc = 5V
3.4
-80 -40 0 40 80 120
Temperature (°C)
2.5
2.0
1.5
1.0
0.5
Output Voltage (V)
0.0
-0.5
-1.0
0.0 1.0 2.0 3.0 4.0 5.0
Vcc = +-2.5V
Gain = -1
RL = 1M ohm
CL = 50 pF
Time (ms)
Phase (°)
Doc ID 6972 Rev 6 9/18
Package information TS94x, TS94xA, TS94xB
3 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
®
is an ST trademark.
10/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Package information
3.1 SOT23-5 package information
Figure 17. SOT23-5 package mechanical drawing
Table 7. SOT23-5 package mechanical data
Dimensions
Ref.
Min. Typ. Max. Min. Typ. Max.
A 0.90 1.20 1.45 0.035 0.047 0.057
A1 0.15 0.006
A2 0.90 1.05 1.30 0.035 0.041 0.051
B 0.35 0.40 0.50 0.013 0.015 0.019
C 0.09 0.15 0.20 0.003 0.006 0.008
D 2.80 2.90 3.00 0.110 0.114 0.118
D1 1.90 0.075
e 0.95 0.037
E 2.60 2.80 3.00 0.102 0.110 0.118
F 1.50 1.60 1.75 0.059 0.063 0.069
L 0.10 0.35 0.60 0.004 0.013 0.023
K 0 degrees 10 degrees
Millimeters Inches
Doc ID 6972 Rev 6 11/18
Package information TS94x, TS94xA, TS94xB
3.2 SO-8 package information
Figure 18. SO-8 package mechanical drawing
Table 8. SO-8 package mechanical data
Dimensions
Ref.
Min. Typ. Max. Min. Typ. Max.
A1.750.069
A1 0.10 0.25 0.004 0.010
A2 1.25 0.049
b 0.28 0.48 0.011 0.019
c 0.17 0.23 0.007 0.010
D 4.80 4.90 5.00 0.189 0.193 0.197
E 5.80 6.00 6.20 0.228 0.236 0.244
E1 3.80 3.90 4.00 0.150 0.154 0.157
e 1.27 0.050
h 0.25 0.50 0.010 0.020
L 0.40 1.27 0.016 0.050
L1 1.04 0.040
k 0 8° 1° 8°
ccc 0.10 0.004
Millimeters Inches
12/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Package information
3.3 TSSOP8 package information
Figure 19. TSSOP8 package mechanical drawing
Table 9. TSSOP8 package mechanical data
Dimensions
Ref.
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.008
D 2.90 3.00 3.10 0.114 0.118 0.122
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.177
e 0.65 0.0256
k0° 8°0° 8°
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1 0.039
aaa 0.10 0.004
Millimeters Inches
Doc ID 6972 Rev 6 13/18
Package information TS94x, TS94xA, TS94xB
3.4 SO-14 package information
Figure 20. SO-14 package mechanical drawing
Table 10. SO-14 package mechanical data
Dimensions
Millimeters Inches
Ref.
Min. Typ. Max. Min. Typ. Max.
A 1.35 1.75 0.05 0.068
A1 0.10 0.25 0.004 0.009
A2 1.10 1.65 0.04 0.06
B 0.33 0.51 0.01 0.02
C 0.19 0.25 0.007 0.009
D 8.55 8.75 0.33 0.34
E 3.80 4.0 0.15 0.15
e1.27 0.05
H 5.80 6.20 0.22 0.24
h 0.25 0.50 0.009 0.02
L 0.40 1.27 0.015 0.05
k 8° (max.)
ddd 0.10 0.004
14/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Package information
3.5 TSSOP14 package information
Figure 21. TSSOP14 package mechanical drawing
Table 11. TSSOP14 package mechanical data
Dimensions
Ref.
Min. Typ. Max. Min. Typ. Max.
A1.200.047
A1 0.05 0.15 0.002 0.004 0.006
A2 0.80 1.00 1.05 0.031 0.039 0.041
b 0.19 0.30 0.007 0.012
c 0.09 0.20 0.004 0.0089
D 4.90 5.00 5.10 0.193 0.197 0.201
E 6.20 6.40 6.60 0.244 0.252 0.260
E1 4.30 4.40 4.50 0.169 0.173 0.176
e 0.65 0.0256
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
k0° 8°0° 8°
aaa 0.10 0.004
Millimeters Inches
Doc ID 6972 Rev 6 15/18
Ordering information TS94x, TS94xA, TS94xB
4 Ordering information
Table 12. Order codes
Order code
TS941ID
TS941IDT
TS941AID
TS941AIDT
TS941BID
TS941BIDT
TS941ILT
TS941AILT K202
TS941BILT K203
TS942ID
TS942IDT
TS942AID
TS942AIDT
TS942BID
TS942BIDT
TS942IPT
TS942AIPT 942AI
Temperature
range
-40°C to +85°C
Package Packaging Marking
TS941ID
TS941IDT
SO-8
SOT23-5L Tape & reel
SO-8
TSSOP8 Tape & reel
Tube or
Tape & reel
Tube or
Tape & reel
TS941AID
TS941BID
K201
TS942ID
TS942IDT
TS942AID
TS942BID
TS942
TS942BIPT 942BI
TS944ID
TS944IDT
TS944AID
TS944AIDT
TS944BID
TS944BIDT
TS944IPT
TS944AIPT TS944AI
TS944BIPT TS944BI
SO-14
TSSOP14 Tape & reel
Tube or
Tape & reel
TS944ID
TS944IDT
TS944AID
TS944AIDT
TS944BID
TS944BIDT
TS944IPT
16/18 Doc ID 6972 Rev 6
TS94x, TS94xA, TS94xB Revision history
5 Revision history
Table 13. Document revision history
Date Revision Changes
01-Dec-2001 1 Initial release.
01-Dec-2004 2 Modifications on AMR table (explanation of Vid and Vin limits).
13-Mar-2008 3
09-Apr-2008 4
05-Mar-2009 5
CDM values added for TS944 in SO and TSSOP packages.
Document reformatted.
Corrected error in power consumption on cover page (1.2µA, not
1.2mA).
Removed DIP package information and order codes in Chapter 3
and Chapter 4.
Updated all other package mechanical drawings and data in
Chapter 3.
06-Oct-2009 6
Added root part numbers (TS94xA, TS94xB) and
Table 1: Device summary on cover page.
Doc ID 6972 Rev 6 17/18
TS94x, TS94xA, TS94xB
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18/18 Doc ID 6972 Rev 6
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