Very low power precision CMOS quad operational amplifiers
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
CC
V
-
CC
V
1
2
3
4
8
5
6
7
9
10
11
12
13
14
+
Output 3
Output 4
Non-inverting Input 4
Inverting Input 4
Non-inverting Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2
Features
■ Very low power consumption: 10 µA/op
■ Output voltage can swing to ground
■ Excellent phase margin on capacitive loads
■ Unity gain stable
■ Two input offset voltage selections
TS27L4
DIP14
(Plastic package)
Description
The TS27L4 series are low-cost, low-power quad
operational amplifiers designed to operate with
single or dual supplies. These operational
amplifiers use the ST silicon gate CMOS process
allowing an excellent consumption-speed ratio.
These series are ideally suited for low
consumption applications.
Three power consumptions are available enabling
the best consumption-speed ratio:
I
= 10 µA/amp: TS27L4 (very low power),
CC
I
= 150 µA/amp: TS27M4 (low power),
CC
I
= 1 mA/amp: TS274 (standard).
CC
These CMOS amplifiers offer very high input
impedance and extremely low input currents. The
major advantage versus JFET devices is the very
low input current drift with temperature (see
Figure 4).
SO-14
(Plastic micropackage)
TSSOP14
(Thin shrink small outline package)
Pin connections (top view)
March 2009 Rev 3 1/15
www.st.com
15
Circuit schematics TS27L4
E
E
Input
differential
Second
stage
Output
stage
Output
CC
V
CC
V
Current
source
x I
1 Circuit schematics
Figure 1. Internal block diagram
2/15
TS27L4 Circuit schematics
Figure 2. Schematic diagram (for 1/4 TS27L4)
15
T
12
T
10
T
11
T
8
T
6
T
Output
16
T
14
T
13
T
9
T
7
T
R1
C1
Input
2
T
5
CC
V
T
1
T
4
T
3
T
27
T
26
T
25
T
24
T
Inpu t
28
T
23
T
2
R
18
T
17
T
19
T
29
T
22
T
21
T
20
T
CC
V
3/15
Absolute maximum ratings and operating conditions TS27L4
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
(3)
(1)
18 V
(2)
±18 V
-0.3 to 18 V
+
≥ 15V ±30 mA
CC
(4)
105
100
80
(4)
31
32
33
(5)
(6)
(7)
1kV
100 V
1.5 kV
°C/W
°C/W
V
V
V
T
CC+
I
o
I
in
stg
Supply voltage
Differential input voltage
id
Input voltage
in
Output current for V
Input current ±5 mA
Storage temperature range -65 to +150 °C
Thermal resistance junction to ambient
R
thja
SO-14
TSSOP14
DIP14
Thermal resistance junction to case
R
thjc
SO-14
TSSOP14
DIP14
HBM: human body model
ESD
MM: machine model
CDM: charged device model
1. All values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. The magnitude of the input and the output voltages must never exceed the magnitude of the positive
supply voltage.
4. Short-circuits can cause excessive heating and destructive dissipation. Values are typical.
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.
Table 2. Operating conditions
Symbol Parameter TS27L4C TS27L4I Unit
+
V
V
T
Supply voltage 3 to 16 V
CC
Common mode input voltage range 0 to V
icm
Operating free-air temperature range 0 to +70 -40 to +125 °C
oper
4/15
+
- 1.5 V
CC
TS27L4 Electrical characteristics
3 Electrical characteristics
Table 3. V
+
= +10 V, V
CC
Symbol Parameter
Input offset voltage
= 1.4V, Vic = 0V
V
o
TS27L4
V
io
TS27L4A
≤ T
T
min
amb
≤ T
max
TS27L4
TS27L4A
DV
Input offset voltage drift 2 2 µV/°C
io
Input offset current
I
io
Vic = 5V, VO = 5V
≤ T
T
min
amb
≤ T
Input bias current
I
ib
Vic = 5V, VO = 5V
T
≤ T
amb
≤ T
min
High level output voltage
V
OH
V
OL
= 100mV, RL = 1MΩ
V
id
T
≤ T
amb
≤ T
min
Low level output voltage
Vid = -100mV
max
(1)
max
max
CC
(1)
-
= 0 V, T
= +25° C (unless otherwise specified)
amb
TS27L4C/AC TS27L4I/AI
Min. Typ. Max. Min. Typ. Max.
1.1
0.9105
12
6.5
1
100
1
150
8.8
98.8
8.7
50 50 mV
8.6
1.1
0.9105
6.5
1
200
1
300
9
Unit
mV
12
pA
pA
V
A
vd
GBP
CMR
SVR
I
CC
I
o
I
sink
SR
Large signal voltage gain
V
= 5V, RL = 1MΩ, Vo = 1V to 6V
iC
≤ T
T
min
amb
≤ T
max
Gain bandwidth product
= 40dB, RL = 1MΩ, CL = 100pF, fin = 100kHz
A
v
Common mode rejection ratio
V
= 1V to 7.4V, Vo = 1.4V
iC
Supply voltage rejection ratio
+
V
= 5V to 10V, Vo = 1.4V
CC
Supply current (per amplifier)
= 1, no load, Vo = 5V
A
v
T
≤ T
amb
≤ T
max
min
Output short circuit current
= 0V, Vid = 100mV
V
o
Output sink current
= VCC, Vid = -100mV
V
o
Slew rate at unity gain
R
= 1MΩ, CL = 100pF, Vi = 3 to 7V
L
6045100 6040100
V/mV
0.1 0.1 MHz
65 80 65 80 dB
60 80 60 80 dB
10 15
17
10 15
18
µA
60 60 mA
45 45 mA
0.04 0.04 V/µs
5/15
Electrical characteristics TS27L4
Table 3. V
+
= +10 V, V
CC
CC
-
= 0 V, T
= +25° C (unless otherwise specified) (continued)
amb
Symbol Parameter
Min. Typ. Max. Min. Typ. Max.
φm
K
V
o1/Vo2
1. Maximum values include unavoidable inaccuracies of the industrial tests.
Phase margin at unity gain
Av = 40dB, RL = 1MΩ, CL = 100pF
Overshoot factor 30 30 %
ov
Equivalent input noise voltage
e
n
f = 1kHz, Rs = 100Ω
Channel separation 120 120 dB
TS27L4C/AC TS27L4I/AI
45 45 Degrees
68 68
Unit
nV
-----------Hz
6/15
TS27L4 Typical characteristics
25 50 75 100 125
INPUT BIAS CURRENT, I (pA)
IB
100
10
1
CC
ic
V = 10V
V = 5V
amb
TEMPERATURE, T (˚C)
4 Typical characteristics
Figure 3. Supply current (each amplifier)
versus supply voltage
2.0
µ
T = 25°C
amb
A = 1
1.5
1.0
V
V = V / 2
O CC
CC
0.5
SUPPLY CURRENT, I ( A)
0 4 8 12 16
SUPPLY VOLTAGE, V (V)
CC
Figure 5. High level output voltage versus
high level output current
5
T = 25˚C
amb
4
OH
V = 100mV
id
3
V = 5V
CC
Figure 4. Input bias current versus free air
temperature
Figure 6. High level output voltage versus
high level output current
20
T = 25˚C
amb
V = 100mV
id
16
OH
12
V = 16V
CC
2
V = 3V
1
OUTPUT VOLTAGE, V (V)
0
-10 -8 -6 -4 -2 0
OUTPUT CURRENT, I (mA)
CC
OH
Figure 7. Low level output voltage versus low
level output current
1.0
V = 3V
CC
0.8
OL
0.6
0.4
0.2
OUTPUT VOLTAGE, V (V)
0 1 2 3
OUTPUT CURRENT, I (mA)
V = 5V
CC
T = 25°C
amb
V = 0.5V
ic
V = -100mV
id
OL
8
V = 10V
CC
4
OUTPUT VOL TAGE, V (V)
0
-50 -40 -30 -20 -10 0
OUTPUT CURRENT, I (mA)
OH
Figure 8. Low level output voltage versus low
level output current
3
V = 10V
OL
2
1
OUTPUT VOLTAGE, V (V)
0 4 8 12 16 20
CC
V = 16V
CC
T = 25°C
amb
V = 0.5V
i
V = -100mV
id
OUTPUT CURRENT, I (mA)
OL
7/15
Typical characteristics TS27L4
300
200
100
0
EQUIVALENT INPUT NOISE
VOLTAG E (nV /VHz )
1
10
100
1000
FREQUENCY (Hz)
= 10V
= 25˚C
T
am b
V
CC
= 100
Ω
R
S
Figure 9. Open loop frequency response and
phase shift
50
40
30
20
T = 25°C
V=10V
GAIN (dB)
10
R=1M
C = 100pF
0
A=100
-10
23
10
PHASE
amb
+
CC
Ω
L
L
VCL
10
10
FREQUENCY, f (Hz)
4
GAIN
Gai n
Bandwidth
Product
5
10
Phase
Mar gin
10
0
45
90
135
PHASE (Degrees)
180
7
6
10
Figure 11. Phase margin versus supply
voltage
60
T=25°C
amb
50
φ
40
R=1M
C = 100pF
A=1
Ω
L
L
V
Figure 10. Gain bandwidth product versus
supply voltage
120
T = 25°C
100
GAIN BANDW. PROD., GBP (MHz)
amb
R=1M
C = 100pF
80
60
40
0481216
L
A=1
V
SUPPLY VOLTAGE, V (V)
Ω
L
CC
Figure 12. Phase margin versus capacitive
load
80
T=25°C
amb
CC
Ω
L
V
R=1M
70
φ
60
50
A=1
V=10V
30
PHASE MARGIN, m (Degrees)
04 8 1216
SUPPLY VOLTAGE, V (V)
CC
40
PHASE MARGIN, m (Degrees)
200
CAPACITANCE, C (pF)
80
6040
L
Figure 13. Slew rate versus supply voltage Figure 14. Input voltage noise versus
frequency
0.05
T=25°C
s)
μ
0.04
0.03
SLEW RATES, SR (V/
0.02
8/15
amb
R=1M
C = 100pF
4 6 8 10 12 14 16
Ω
L
L
SUPPLY VOLTAGE, V (V)
SR
SR
CC
100
TS27L4 Package information
5 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.
9/15
Package information TS27L4
5.1 DIP14 package information
Figure 15. DIP14 package mechanical drawing
Table 4. DIP14 package mechanical data
Dimensions
Millimeters Inches
Ref.
Min. Typ. Max. Min. Typ. Max.
A5.330.21
A1 0.38 0.015
A2 2.92 3.30 4.95 0.11 0.13 0.19
b 0.36 0.46 0.56 0.014 0.018 0.022
b2 1.14 1.52 1.78 0.04 0.06 0.07
c 0.20 0.25 0.36 0.007 0.009 0.01
D 18.67 19.05 19.69 0.73 0.75 0.77
E 7.62 7.87 8.26 0.30 0.31 0.32
E1 6.10 6.35 7.11 0.24 0.25 0.28
e2.54 0.10
e1 15.24 0.60
eA 7.62 0.30
eB 10.92 0.43
L 2.92 3.30 3.81 0.11 0.13 0.15
10/15
TS27L4 Package information
5.2 SO-14 package information
Figure 16. SO-14 package mechanical drawing
Table 5. 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
11/15
Package information TS27L4
5.3 TSSOP14 package information
Figure 17. TSSOP14 package mechanical drawing
Table 6. 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
12/15
TS27L4 Ordering information
6 Ordering information
Table 7. Order codes
Order code
TS27L4CD
TS27L4CDT
TS27L4ACD
TS27L4ACDT
TS27L4CN
TS27L4ACN
TS27L4CPT
TS27L4ACPT
TS27L4ID
TS27L4IDT
TS27L4AID
TS27L4AIDT
TS27L4IN
TS27L4AIN
TS27L4IPT
TS27L4AIPT
Temperature
range
0°C, +70°C
-40°C, +125°C
Package Packing Marking
SO-14
DIP14 Tube
TSSOP14 Tape & reel
SO-14
DIP14 Tube
TSSOP14 Tape & reel
Tub e o r
Tape & reel
Tub e o r
Tape & reel
27L4C
27L4AC
TS27L4CN
TS27L4ACN
27L4C
27L4AC
27L4I
27L4AI
TS27L4IN
TS27L4AIN
27L4I
27L4AI
13/15
Revision history TS27L4
7 Revision history
Table 8. Document revision history
Date Revision Changes
11-Nov-2001 1 Initial release.
Removed TS27L4B version of device.
, R
, and ESD parameters in Table 1: Absolute
thjc
08-Sep-2008 2
02-Mar-2009 3
Added R
thja
maximum ratings.
Expanded Table 7: Order codes.
Updated document format.
Removed TS27L4*M* from Table 7: Order codes.
Updated package mechanical drawings and data in
Chapter 5: Package information.
14/15
TS27L4
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