TS507
High precision rail-to-rail operational amplifier
Features
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Pin connections (top view)
Ultra low offset voltage: 25 µV typ, 100 µV max
Rail-to-rail input/output voltage swing
Operating from 2.7 V to 5.5 V
High speed: 1.9 MHz
45° phase margin with 100 pF
Low consumption: 0.8 mA at 2.7 V
Very large signal voltage gain: 131 dB
High power supply rejection ratio: 105 dB
Very high ESD protection 5kV (HBM)
Latch-up immunity
Available in SOT23-5 micropackage
SO-8
Non Inverting Input
3
4
Inverting Input
Output
VDD
1
2
5
VCC
SOT23-5
Applications
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Battery-powered applications
Portable devices
Signal conditioning
Medical instrumentation
N.C.
Inverting Input
Non Inverting Input
VDD
1
2
3
4
_
+
8
7
6
5
N.C.
VCC
Output
N.C.
Description
The TS507 is a high performance rail-to-rail input
and output amplifier with very low offset voltage.
This amplifier uses a new trimming technique that
yields ultra low offset voltages without any need
for external zeroing.
The circuit offers very stable electrical
characteristics over the entire supply voltage
range, and is particularly intended for automotive
and industrial applications.
The TS507 is housed in the space-saving 5-pin
SOT23 package, making it well suited for battery-
powered systems. This micropackage simplifies
the PC board design because of its ability to be
placed in tight spaces (external dimensions are
2.8 mm x 2.9 mm).
April 2008
Rev 5
1/20
www.st.com
20
Contents
TS507
Contents
1
2
3
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Application note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1
3.2
Out-of-the-loop compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . 15
In-the-loop-compensation technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1
4.2
SOT23-5 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SO-8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5
6
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2/20
TS507
Absolute maximum ratings and operating conditions
1
Absolute maximum ratings and operating conditions
Table 1.
Symbol
V
CC
V
id
V
in
T
stg
R
thja
Supply voltage
(1)
Differential input voltage
(2)
Input voltage
(3)
Storage temperature
Thermal resistance junction to ambient
(4) (5)
SOT23-5
SO-8
Thermal resistance junction to case
SOT23-5
SO-8
Maximum junction temperature
HBM: human body model
(6)
ESD
MM: machine model
(7)
CDM: charged device model
(8)
Latch-up immunity
1. Value with respect to V
DD
pin.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. V
CC
-V
in
must not exceed 6V and V
in
must not exceed 6V.
4. Short-circuits can cause excessive heating and destructive dissipation.
5. R
thja/c
are typical values.
6. 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.
7. 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.
8. 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.
Absolute maximum ratings (AMR)
Parameter
Value
6
±2.5
V
DD
-0.3 to V
CC
+0.3
-65 to +150
250
125
81
40
150
5
300
2
class A
Unit
V
V
V
°C
°C/W
R
thjc
T
j
°C/W
°C
kV
V
kV
Table 2.
Symbol
V
CC
V
icm
V
id
T
oper
Operating conditions
Parameter
Supply voltage
(1)
Common mode input voltage range
Differential input voltage
(2)
Operating free air temperature range
TS507C
TS507I
Value
2.7 to 5.5
V
DD
to V
CC
±2.5
0 to +85
-40 to +125
Unit
V
V
V
°C
1. Value with respect to V
DD
pin.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3/20
Electrical characteristics
TS507
2
Table 3.
Symbol
Electrical characteristics
Electrical characteristics at V
CC
= +5V, V
DD
= 0V, V
icm
= V
CC
/2, T
amb
= 25°C,
R
L
connected to V
CC
/2 (unless otherwise specified)
(1)
Parameter
Conditions
Min.
Typ.
Max.
Unit
DC performance
V
icm
= 0 to 3.8V, T=25°C
TS507C full temp range
TS507I full temp range
V
icm
= 0V to 5V, T=25°C
TS507C full temp range
TS507I full temp range
V
io
drift vs. temperature
Input bias current
T
min
< T
op
< T
max
T = 25°C
TS507C full temp range
TS507I full temp range
T = 25°C
TS507C full temp range
TS507I full temp range
V
icm
from 0V to 3.8V, T=25°C
TS507C full temp range
TS507I full temp range
V
icm
from 0V to 5V
Power supply rejection ratio
20 log (ΔV
CC
/ΔV
io
)
V
CC
from 2.7V to 5.5V,
V
icm
=v
cc
/2, T=25°C
TS507C full temp range
TS507I full temp range
R
L
= 10kΩ V
out
= 0.5V to 4.5V
,
Full temp range
R
L
= 600Ω, T=25°C
TS507C full temp range
TS507I full temp range
R
L
= 10kΩ, T=25°C
Full Temp range
R
L
= 600Ω, T=25°C
TS507C full temp range
TS507I full temp range
R
L
= 10kΩ, T=25°C
Full temp range
91
90
89
99
98
94
94
91
1
8
70
75
110
25
35
50
25
100
250
400
450
550
750
µV
V
io
Input offset voltage
(2)
µV
µV/°C
nA
ΔV
io
/Δt
I
ib
2
I
io
Input offset current
nA
115
dB
96
105
CMRR
Common mode rejection ratio
20 log (ΔV
icm
/ΔV
io
)
PSRR
dB
A
vd
Large signal voltage gain
131
67
95
110
120
15
15
90
110
125
15
15
dB
V
CC
-V
OH
High level output voltage drop
mV
4
64
V
OL
Low level output voltage
mV
4
4/20
TS507
Table 3.
Symbol
Electrical characteristics
Electrical characteristics at V
CC
= +5V, V
DD
= 0V, V
icm
= V
CC
/2, T
amb
= 25°C,
R
L
connected to V
CC
/2 (unless otherwise specified)
(1)
(continued)
Parameter
Conditions
V
out
= V
CC,
V
id
=-1V, T=25°C
TS507C full temp range
TS507I full temp range
V
out
= V
DD
,
V
id
=1V, T=25°C
TS507C full temp range
TS507I full temp range
operator)
(2)
No load, V
out
=V
CC
/2,
V
icm
=0 to 5V, T=25°C
Full temp range
Min.
74
60
53
90
77
70
Typ.
104
Max.
Unit
I
sink
I
out
I
source
mA
128
I
CC
Supply current (per
0.85
1.15
1.25
mA
Dynamic performance
GBP
φ
m
G
m
SR
e
N
i
N
Gain bandwidth product
Phase margin
Gain margin
Slew rate
Equivalent input noise voltage
Equivalent input noise current
R
L
= 2kΩ, C
L
= 100pF,
f = 100kHz
R
L
= 2kΩ C
L
=100pF
,
R
L
= 2kΩ C
L
=100pF
,
R
L
= 2kΩ, C
L
=100pF,
V
out
= 1.25V to 3.75V
,
10% to
90%
f = 1kHz
f = 10kHz
f=1kHz, G=1, R
L
=2kΩ V
icm
=2V,
,
V
out
=3.5V
pp
1.9
45
10
0.6
12
1.2
0.0003
MHz
Degrees
dB
V/µs
nV/√Hz
pA/√Hz
%
THD+e
N
THD + noise
1. All parameter limits at temperatures different from 25° C are guaranteed by correlation.
2. Measurements done at 4 V
icm
values: V
icm
=0 V, V
icm
=3.8 V, V
icm
=4.2 V, V
icm
=5 V.
5/20
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