ST TS951, TS952, TS954 User Manual
February 2011 Doc ID 5561 Rev 8 1/18
18
TS951, TS952, TS954
Input/output rail-to-rail low power operational amplifiers
Features
■ Rail-to-rail input common-mode voltage range
■ Rail-to-rail output voltage swing
■ Operating from 2.7 V to 12 V
■ High-speed (3 MHz, 1 V/µs)
■ Low consumption (0.9 mA at 3 V)
■ Supply voltage rejection ratio: 80 dB
■ Latch-up immunity
■ Available in SOT23-5 micropackage
Applications
■ Set-top boxes
■ Laptop/notebook computers
■ Transformer/line drivers
■ Personal entertainment (CD players)
■ Portable communications (cell phones,
pagers)
■ Instrumentation and sensoring
■ Digital-to-analog converter buffers
■ Portable headphone speaker drivers
Description
The TS951, TS952 and TS954 family of devices
are rail-to-rail BiCMOS operational amplifiers
optimized and fully specified for 3 V and 5 V
operation.
The TS951 is housed in the space-saving 5-pin
SOT23 package that makes it well-suited for
battery-powered systems. This micropackage
simplifies the PC board design because of its
ability to be placed in tight spaces (outside
dimensions are: 2.8 mm x 2.9 mm).
TS951ILT
TS951ID
TS952IN-TS952ID-TS952IPT
TS954IN-TS954ID-TS954IPT
www.st.com
Absolute maximum ratings and operating conditions TS951, TS952, TS954
2/18 Doc ID 5561 Rev 8
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
CC
Supply voltage
(1)
1. All voltage values, except differential voltage are with respect to network ground terminal.
14 V
V
id
Differential input voltage
(2)
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
If V
id
> ±1 V, the maximum input current must not exceed ±1 mA. In this case (V
id
> ±1 V), an input series
resistor must be added to limit input current.
±1 V
V
in
Input voltage
(3)
3. Do not exceed 14 V.
V
DD
-0.3 to V
CC
+0.3 V
T
stg
Storage temperature range -65 to +150
T
j
Maximum junction temperature 150 °C
R
thja
Thermal resistance junction to ambient
(4)
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
4. Short-circuits can cause excessive heating and destructive dissipation. R
th
are typical values.
250
125
103
120
100
°C/W
R
thjc
Thermal resistance junction to case
(4)
SOT23-5
SO-8
SO-14
TSSOP8
TSSOP14
81
40
31
37
32
°C/W
ESD
HBM: human body model
(5)
TS951
TS952
TS954
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.
1
2
3
kV
MM: machine model
(6)
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.
100 V
CDM: charged device model
(7)
TS951
TS952
TS954
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.
1.5
1.5
1
kV
Latch-up immunity 200 mA
Lead temperature (soldering, 10sec) 260 °C
TS951, TS952, TS954 Absolute maximum ratings and operating conditions
Doc ID 5561 Rev 8 3/18
Table 2. Operating conditions
Symbol Parameter Value Unit
V
CC
Supply voltage 2.7 to 12 V
V
icm
Common mode input voltage range V
DD
-0.2 to V
CC
+0.2 V
T
oper
Operating free air temperature range -40 to +125 °C
Electrical characteristics TS951, TS952, TS954
4/18 Doc ID 5561 Rev 8
2 Electrical characteristics
Table 3. V
CC
= +3 V, V
DD
= 0 V , R
L
connected to V
CC
/2, T
amb
= 25° C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
V
io
Input offset voltage
T
min
≤ T
amb
≤ T
max
6
8
mV
DV
io
Input offset voltage drift 2 µV/°C
I
io
Input offset current
T
min
≤ T
amb
≤ T
max
130
80
nA
I
ib
Input bias current
V
icm
= V
CC
/2
T
min
≤ T
amb
≤ T
max
35 100
200
nA
CMR Common mode rejection ratio 50 80 dB
SVR
Supply voltage rejection ratio
V
CC
= 2.7 V to 3.3 V 60 80
dB
A
vd
Large signal voltage gain
V
o
= 2 V
pk-pk
, R
L
= 600 Ω
80 dB
V
OH
High level output voltage
R
L
= 600 Ω
2.8 2.9 V
V
OL
Low level output voltage
R
L
= 600 Ω
80 250 mV
I
sc
Output short-circuit current 10 mA
I
CC
Supply current (per amplifier)
No load, V
icm
= V
CC
/2
0.9 1.3 mA
GBP
Gain bandwidth product
R
L
= 2 kΩ
3MHz
SR Slew rate 1 V/µs
∅m
Phase margin at unit gain
R
L
= 600 Ω, C
L
=100 pF
60 Degrees
Gm
Gain margin
R
L
= 600 Ω, C
L
=100 pF
10 dB
e
n
Equivalent input noise voltage
f = 1 kHz
25
THD
Total harmonic distortion
V
out
= 4 V
pk-pk
, F = 10 kHz, A
V
= 2, R
L
=10 kΩ
0.01 %
nV
Hz
------------
TS951, TS952, TS954 Electrical characteristics
Doc ID 5561 Rev 8 5/18
Table 4. V
CC
= +5 V, V
DD
= 0 V, R
L
connected to V
CC
/2, T
amb
= 25° C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
V
io
Input offset voltage
T
min
≤ T
amb
≤ T
max
6
8
mV
DV
io
Input offset voltage drift 2 µV/°C
I
io
Input offset current
V
icm
= V
CC
/2
T
min
≤ T
amb
≤ T
max
130
80
nA
I
ib
Input bias current
V
icm
= V
CC
/2
T
min
≤ T
amb
≤ T
max
35 100
200
nA
CMR Common mode rejection ratio 50 80 dB
SVR
Supply voltage rejection ratio
V
CC
= 2.7 V to 3.3 V
60 80 dB
A
vd
Large signal voltage gain
V
o
= 2 V
pk-pk
, R
L
= 600 Ω
86 dB
V
OH
High level output voltage
R
L
= 600 Ω
4.7 4.8 V
V
OL
Low level output voltage
R
L
= 600 Ω
80 300 mV
I
sc
Output short-circuit current 10 mA
I
CC
Supply current (per amplifier)
No load, V
icm
= V
CC
/2
0.95 1.4 mA
GBP
Gain bandwidth product
R
L
= 2 kΩ
3MHz
SR Slew rate 1 V/μs
∅m
Phase margin at unit gain
R
L
= 600 Ω, C
L
=100 pF
60 Degrees
Gm
Gain margin
R
L
= 600 Ω, C
L
=100 pF
10 dB
e
n
Equivalent input noise voltage
f = 1 kHz
25
THD
Total harmonic distortion
V
out
= 4 V
pk-pk
, F = 10 kHz, A
V
= 2, R
L
=10 kΩ
0.01 %
nV
Hz
------------
Electrical characteristics TS951, TS952, TS954
6/18 Doc ID 5561 Rev 8
Figure 1. Supply current vs. supply voltage Figure 2. Output short circuit current vs.
output voltage
Figure 3. Voltage gain and phase vs.
frequency
Figure 4. Supply current vs. temperature
Figure 5. Output short circuit current vs.
temperature
Figure 6. Slew rate vs. temperature
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