TS27L4
Very low power precision CMOS quad operational amplifiers
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
DIP14
(Plastic package)
SO-14
(Plastic micropackage)
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.
TSSOP14
(Thin shrink small outline package)
Three power consumptions are available enabling
the best consumption-speed ratio:
ICC = 10 µA/amp: TS27L4 (very low power),
ICC = 150 µA/amp: TS27M4 (low power),
ICC = 1 mA/amp: TS274 (standard).
Pin connections (top view)
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).
March 2009
14 Output 4
Output 1 1
Inverting Input 1 2
-
-
13 Inverting Input 4
Non-inverting Input 1 3
+
+
12 Non-inverting Input 4
11 VCC -
VCC + 4
Non-inverting Input 2 5
+
+
10 Non-inverting Input 3
Inverting Input 2 6
-
-
9
Inverting Input 3
8
Output 3
Output 2 7
Rev 3
1/15
www.st.com
15
Circuit schematics
1
TS27L4
Circuit schematics
Figure 1.
Internal block diagram
VCC
Current
source
xI
Input
differential
Second
stage
Output
stage
Output
VCC
E
2/15
E
T20
T19
T17
T24
T21
T 18
R2
T 25
VCC
T 22
T 23
T 26
T29
T 28
T27
Input
T3
T1
T5
T4
T2
C1
Input
R1
T7
T6
T9
T8
T 13
T11
T 10
T 14
T 12
T16
Output
T 15
Figure 2.
VCC
TS27L4
Circuit schematics
Schematic diagram (for 1/4 TS27L4)
3/15
Absolute maximum ratings and operating conditions
2
TS27L4
Absolute maximum ratings and operating conditions
Table 1.
Absolute maximum ratings
Symbol
VCC+
Vid
Parameter
Value
Unit
18
V
Supply voltage (1)
Differential input voltage
(2)
±18
V
Vin
Input voltage
(3)
-0.3 to 18
V
Io
Output current for VCC+ ≥ 15V
±30
mA
Iin
Input current
±5
mA
-65 to +150
°C
Tstg
Storage temperature range
Rthja
Thermal resistance junction to ambient(4)
SO-14
TSSOP14
DIP14
105
100
80
Rthjc
Thermal resistance junction to case(4)
SO-14
TSSOP14
DIP14
31
32
33
HBM: human body model(5)
1
kV
100
V
1.5
kV
ESD
MM: machine model(6)
(7)
CDM: charged device model
°C/W
°C/W
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.
Symbol
VCC+
4/15
Operating conditions
Parameter
TS27L4C
Supply voltage
Vicm
Common mode input voltage range
Toper
Operating free-air temperature range
TS27L4I
3 to 16
V
+
0 to VCC - 1.5
0 to +70
Unit
-40 to +125
V
°C
TS27L4
Electrical characteristics
3
Electrical characteristics
Table 3.
VCC+ = +10 V, VCC- = 0 V, Tamb = +25° C (unless otherwise specified)
TS27L4C/AC
Symbol
Unit
Min. Typ.
Vio
DVio
TS27L4I/AI
Parameter
Input offset voltage
Vo = 1.4V, Vic = 0V
TS27L4
TS27L4A
Tmin ≤ Tamb ≤ Tmax
TS27L4
TS27L4A
1.1
0.9
Max. Min.
10
5
Typ.
Max.
1.1
0.9
10
5
12
6.5
Input offset voltage drift
mV
12
6.5
2
2
µV/°C
(1)
Iio
Iib
Input offset current
Vic = 5V, VO = 5V
Tmin ≤ Tamb ≤ Tmax
1
Input bias current (1)
Vic = 5V, VO = 5V
Tmin ≤ Tamb ≤ Tmax
1
VOH
High level output voltage
Vid = 100mV, RL = 1MΩ
Tmin ≤ Tamb ≤ Tmax
VOL
Low level output voltage
Vid = -100mV
Avd
Large signal voltage gain
ViC = 5V, RL = 1MΩ, Vo = 1V to 6V
Tmin ≤ Tamb ≤ Tmax
200
9
300
8.8
8.6
100
V
9
50
60
45
pA
1
150
8.8
8.7
pA
1
100
50
60
40
mV
100
V/mV
0.1
MHz
GBP
Gain bandwidth product
Av = 40dB, RL = 1MΩ, CL = 100pF, fin = 100kHz
CMR
Common mode rejection ratio
ViC = 1V to 7.4V, Vo = 1.4V
65
80
65
80
dB
SVR
Supply voltage rejection ratio
VCC+ = 5V to 10V, Vo = 1.4V
60
80
60
80
dB
ICC
Supply current (per amplifier)
Av = 1, no load, Vo = 5V
Tmin ≤ Tamb ≤ Tmax
10
Output short circuit current
Vo = 0V, Vid = 100mV
60
60
mA
Isink
Output sink current
Vo = VCC, Vid = -100mV
45
45
mA
SR
Slew rate at unity gain
RL = 1MΩ, CL = 100pF, Vi = 3 to 7V
0.04
0.04
V/µs
Io
0.1
15
17
10
15
18
µA
5/15
Electrical characteristics
Table 3.
TS27L4
VCC+ = +10 V, VCC- = 0 V, Tamb = +25° C (unless otherwise specified) (continued)
TS27L4C/AC
Symbol
TS27L4I/AI
Parameter
Unit
Min. Typ.
Max. Min.
Typ.
Max.
φm
Phase margin at unity gain
Av = 40dB, RL = 1MΩ, CL = 100pF
45
45
Degrees
Kov
Overshoot factor
30
30
%
en
Equivalent input noise voltage
f = 1kHz, Rs = 100Ω
68
68
nV
-----------Hz
Channel separation
120
120
dB
Vo1/Vo2
1. Maximum values include unavoidable inaccuracies of the industrial tests.
6/15
TS27L4
Typical characteristics
Figure 3.
Supply current (each amplifier)
versus supply voltage
2.0
1.5
1.0
Tamb = 25°C
AV = 1
VO = VCC / 2
0.5
0
4
8
12
SUPPLY VOLTAGE, VCC (V)
Figure 5.
VCC = 5V
2
0
VCC = 3V
-10
1
Figure 6.
1.0
0.6
V CC = 3V
V CC = 5V
0.4
0.2
0
T amb = 25°C
V ic = 0.5V
V id = -100mV
1
2
OUTPUT CURRENT, I OL (mA)
75
100
125
High level output voltage versus
high level output current
16
3
T amb = 25˚C
V id = 100mV
VCC = 16V
12
VCC = 10V
8
4
0
-50
Low level output voltage versus low Figure 8.
level output current
0.8
50
20
0
OUTPUT VOLTAGE, VOL (V)
OUTPUT VOLTAGE, VOL (V)
Figure 7.
-8
-6
-4
-2
OUTPUT CURRENT, I OH (mA)
10
25
OUTPUT VOLTAGE, V OH (V)
OUTPUT VOLTAGE, V OH (V)
T amb = 25˚C
V id = 100mV
1
VCC = 10V
Vic = 5V
TEMPERATURE, T amb (˚C)
5
3
Input bias current versus free air
temperature
100
16
High level output voltage versus
high level output current
4
Figure 4.
INPUT BIAS CURRENT, I IB (pA)
Typical characteristics
SUPPLY CURRENT, I CC (µ A)
4
3
-40
-30
-20
OUTPUT CURRENT, I
0
Low level output voltage versus low
level output current
V CC = 10V
VCC = 16V
2
1
-10
OH (mA)
T amb = 25°C
V i = 0.5V
V = -100mV
id
0
4
8
12
16
OUTPUT CURRENT, I OL (mA)
20
7/15
Typical characteristics
Open loop frequency response and Figure 10. Gain bandwidth product versus
phase shift
supply voltage
40
0
G A IN
G A IN (d B )
30
45
PHASE
20
Phase
Margin
T amb = 2 5 °C
V CC+ = 1 0 V
R L = 1 MΩ
C L = 100pF
A VCL = 1 0 0
10
0
135
2
10
3
180
Gain
Bandwidth
Product
-1 0
10
90
10
4
10
5
10
6
10
P H A S E (D e g re e s )
50
7
G A IN B A N D W . P R O D ., G B P (M H z )
Figure 9.
TS27L4
120
T amb = 2 5 °C
R L = 1M Ω
C
= 100pF
L
AV = 1
100
80
60
40
0
4
F R E Q U E N C Y , f (H z )
60
T amb = 2 5 °C
R L = 1 MΩ
C
= 100pF
L
AV = 1
40
30
0
4
8
12
T amb = 2 5 °C
R L = 1MΩ
AV = 1
V CC= 1 0 V
70
60
50
40
0
16
20
60
80
100
Figure 14. Input voltage noise versus
frequency
EQUIVALENT INPUT NOISE
VOLTAGE (nV/VHz)
0 .0 5
S L E W R A T E S , S R (V /μ s )
40
C A P A C IT A N C E , C L (p F )
Figure 13. Slew rate versus supply voltage
SR
0 .0 4
SR
0 .0 3
0 .0 2
300
VCC = 10V
Tamb = 25˚C
R S = 100Ω
200
100
0
4
8/15
16
80
S U P P L Y V O L T A G E , V CC (V )
T amb = 2 5 °C
R L = 1M Ω
C = 100pF
L
12
Figure 12. Phase margin versus capacitive
load
P H A S E M A R G IN , φ m (D e g re e s )
P H A S E M A R G IN , φ m (D e g re e s )
Figure 11. Phase margin versus supply
voltage
50
8
S U P P L Y V O L T A G E , V CC (V )
6
8
10
12
14
S U P P L Y V O L T A G E , VCC (V )
16
1
100
10
FREQUENCY (Hz)
1000
TS27L4
5
Package information
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
9/15
Package information
5.1
TS27L4
DIP14 package information
Figure 15. DIP14 package mechanical drawing
Table 4.
DIP14 package mechanical data
Dimensions
Millimeters
Inches
Ref.
Min.
Typ.
A
Min.
Typ.
5.33
Max.
0.21
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
e
2.54
0.10
e1
15.24
0.60
eA
7.62
0.30
eB
L
10/15
Max.
10.92
2.92
3.30
3.81
0.43
0.11
0.13
0.15
TS27L4
5.2
Package information
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
e
1.27
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
ddd
8° (max.)
0.10
0.004
11/15
Package information
5.3
TS27L4
TSSOP14 package information
Figure 17. TSSOP14 package mechanical drawing
Table 6.
TSSOP14 package mechanical data
Dimensions
Ref.
Millimeters
Min.
Typ.
A
Max.
Min.
Typ.
1.20
A1
0.05
A2
0.80
b
Max.
0.047
0.15
0.002
0.004
0.006
1.05
0.031
0.039
0.041
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
L
k
aaa
1.00
0.65
0.45
L1
12/15
Inches
0.60
0.0256
0.75
0.018
1.00
0°
0.024
0.030
0.039
8°
0.10
0°
8°
0.004
TS27L4
6
Ordering information
Ordering information
Table 7.
Order codes
Order code
Temperature
range
Package
Packing
SO-14
Tube or
Tape & reel
TS27L4CD
TS27L4CDT
27L4C
TS27L4ACD
TS27L4ACDT
TS27L4CN
TS27L4ACN
27L4AC
0°C, +70°C
TS27L4CN
DIP14
27L4C
TSSOP14
Tape & reel
27L4AC
TS27L4ID
TS27L4IDT
27L4I
SO-14
TS27L4AID
TS27L4AIDT
TS27L4IPT
TS27L4AIPT
Tube
TS27L4ACN
TS27L4CPT
TS27L4ACPT
TS27L4IN
TS27L4AIN
Marking
Tube or
Tape & reel
27L4AI
-40°C, +125°C
TS27L4IN
DIP14
Tube
TS27L4AIN
27L4I
TSSOP14
Tape & reel
27L4AI
13/15
Revision history
7
TS27L4
Revision history
Table 8.
14/15
Document revision history
Date
Revision
Changes
11-Nov-2001
1
Initial release.
08-Sep-2008
2
Removed TS27L4B version of device.
Added Rthja, Rthjc, and ESD parameters in Table 1: Absolute
maximum ratings.
Expanded Table 7: Order codes.
Updated document format.
02-Mar-2009
3
Removed TS27L4*M* from Table 7: Order codes.
Updated package mechanical drawings and data in
Chapter 5: Package information.
TS27L4
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15/15