FT1124/FT1125
Dual/Quad
Noise,
Dual/Quad Low
Low Noise,
High Speed
High Speed Precision
Amps
Precision Op
Op Amps
Features
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Description
The
FT1124
dual and
FT1125
quad are high performance
op amps that offer higher gain, slew rate and bandwidth
than the industry standard OP-27 and competing OP-270/
OP-470 op amps. In addition, the
FT1124/FT1125
have
lower I
B
and I
OS
than the OP-27; lower V
OS
and noise
than the OP-270/OP-470.
In the design, processing and testing of the device, par-
ticular attention has been paid to the optimisation of the
entire distribution of several key parameters. Slew rate,
gain bandwidth and 1kHz noise are 100% tested for each
individual amplifier. Consequently, the specifications of
even the lowest cost grades (the
FT1124C
and the
FT1125C)
have been spectacularly improved compared
to equivalent grades of competing amplifiers.
Power consumption of the
FT1124
is one half of two
OP-27s. Low power and high performance in an 8-pin SO
package make the
FT1124
a first choice for surface mounted
systems and where board space is restricted.
For a decompensated version of these devices, with three
times higher slew rate and bandwidth, please see the
FT1126/FT1127
data sheet.
100% Tested Low Voltage Noise: 2.7nV/√Hz Typ
4.2nV/√Hz Max
Slew Rate: 4.5V/µs Typ
Gain Bandwidth Product: 12.5MHz Typ
Offset Voltage, Prime Grade: 70µV Max
Low Grade: 100µV Max
High Voltage Gain: 5 Million Min
Supply Current Per Amplifier: 2.75mA Max
Common Mode Rejection: 112dB Min
Power Supply Rejection: 116dB Min
Available in 8-Pin SO Package
Applications
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Two and Three Op Amp Instrumentation Amplifiers
Low Noise Signal Processing
Active Filters
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifiers
Direct Coupled Audio Gain Stages
Tape Head Preamplifiers
Infrared Detectors
Input Offset Voltage Distribution
(All Packages, FT1124 and FT1125)
V
S
=
±
15V
T
A
= 25°C
758 DUALS
200 QUADS
2316 UNITS
TESTED
30
PERCENT OF UNITS
20
10
0
–100
60
20
– 60
– 20
INPUT OFFSET VOLTAGE (µV)
100
U
U
U
FT1124/FT1125
A
U
Ratings
(Note 1)
A G
Absolute Maximum
R
Supply Voltage .....................................................
±22V
Input Voltages ......................... Equal to Supply Voltage
Output Short-Circuit Duration ......................... Indefinite
Differential Input Current (Note 6) .....................
±25mA
Lead Temperature (Soldering, 10 sec)................. 300°C
Storage Temperature Range ................ – 65°C to 150°C
Operating Temperature Range
FT1124AC/FT1124C
FT1125AC/FT1125C
(Note 10) .......... – 40°C to 85°C
FT1124AI/FT1124I
............................ – 40°C to 85°C
FT1124AM/FT1124M
FT1125AM/FT1125M ......................
– 55°C to 125°C
TOP VIEW
+IN A
1
V
–
2
+IN B
3
B
ORDER PART
NUMBER
8
–IN A
OUT A
V
+
OUT B
A
7
6
5
–IN B
4
FT1124CS8
FT1124AIS8
FT1124IS8
S8 PART MARKING
1124
1124AI
1124I
FT1125CSW
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 140°C,
θ
JA
= 190°C/W
NOTE: THIS PIN CONFIGURATION DIFFERS FROM THE
8-PIN PDIP CONFIGURATION. INSTEAD, IT FOLLOWS
THE INDUSTRY STANDARD
FT1013DS8
SO PACKAGE
PIN LOCATIONS
TOP VIEW
OUT A
1
A
D
16 OUT D
15 –IN D
14 +IN D
13 V
–
B
C
12 +IN C
11 –IN C
10 OUT C
9
NC
–IN A 2
+IN A 3
V
+
4
+IN B 5
–IN B 6
OUT B 7
NC 8
SW PACKAGE
16-LEAD PLASTIC SO WIDE
T
JMAX
= 140°C,
θ
JA
= 130°C/W
U
U
W
W W
U
W
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
B
5
N8 PACKAGE
8-LEAD PDIP
A
8
7
6
V
+
OUT B
–IN B
+IN B
ORDER PART
NUMBER
FT1124ACN8
FT1124CN8
T
JMAX
= 140°C,
θ
JA
= 130°C/W
J8 PACKAGE
8-LEAD CERAMIC DIP
T
JMAX
= 160°C,
θ
JA
= 100°C/W
FT1124CJ8
FT1124AMJ8
FT1124MJ8
TOP VIEW
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
1
2
3
4
5
6
7
N PACKAGE
14-LEAD PDIP
B
C
A
D
14 OUT D
13 –IN D
12 +IN D
11 V
–
10 +IN C
9
8
–IN C
OUT C
FT1125ACN
FT1125CN
T
JMAX
= 140°C,
θ
JA
= 110°C/W (N)
J PACKAGE
14-LEAD CERAMIC DIP
T
JMAX
= 160°C,
θ
JA
= 80°C/W
FT1125CJ
FT1125AMJ
FT1125MJ
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
∆V
OS
∆Time
I
OS
I
B
e
n
PARAMETER
Input Offset Voltage
Long-Term Input Offset
Voltage Stability
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
i
n
V
CM
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
Z
O
I
S
Input Noise Current Density
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Slew Rate
Gain Bandwidth Product
Open-Loop Output Resistance
Supply Current per Amplifier
Channel Separation
V
CM
=
±12V
V
S
=
±4V
to
±18V
FT1124
FT1125
FT1124
FT1125
T
A
= 25°C, V
S
=
±15V,
unless otherwise noted.
FT1124AC/AI/AM
FT1125AC/AM
MIN
TYP
MAX
20
25
0.3
5
6
±7
70
3.0
2.7
1.3
0.3
±12
112
116
5
2
±13
3
9
±12.8
126
126
17
4
±13.8
4.5
12.5
75
2.3
2.75
130
134
150
±12
106
110
3.0
1.5
±12.5
2.7
8
15
20
±20
200
5.5
4.2
70
90
FT1124C/I/M
FT1125C/M
MIN
TYP
MAX
25
30
0.3
6
7
±8
70
3.0
2.7
1.3
0.3
±12.8
124
124
15
3
±13.8
4.5
12.5
75
2.3
150
2.75
5.5
4.2
20
30
±30
100
140
CONDITIONS (Note 2)
UNITS
µV
µV
µV/Mo
nA
nA
nA
nV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
V
dB
dB
V/µV
V/µV
V
V/µs
MHz
Ω
mA
dB
0.1Hz to 10Hz (Notes 8, 9)
f
O
= 10Hz (Note 5)
f
O
= 1000Hz (Note 3)
f
O
= 10Hz
f
O
= 1000Hz
R
L
≥
10k, V
OUT
=
±10V
R
L
≥
2k, V
OUT
=
±10V
R
L
≥
2k
R
L
≥
2k (Notes 3, 7)
f
O
= 100kHz (Note 3)
V
OUT
= 0, I
OUT
= 0
f
≤
10Hz (Note 9)
V
OUT
=
±10V,
R
L
= 2k
The
●
denotes the specifications which apply over the –55°C
≤
T
A
≤
125°C temperature range, V
S
=
±15V,
unless otherwise noted.
FT1124AM
FT1125AM
MIN
TYP
MAX
●
●
●
●
●
●
●
SYMBOL
V
OS
∆V
OS
∆Temp
I
OS
I
B
V
CM
CMRR
PSRR
A
VOL
V
OUT
SR
I
S
PARAMETER
Input Offset Voltage
Average Input Offset
Voltage Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
Slew Rate
Supply Current per Amplifier
CONDITIONS (Note 2)
FT1124
FT1125
(Note 5)
FT1124
FT1125
MIN
FT1124M
FT1125M
TYP
MAX
60
70
0.4
20
20
±20
250
290
1.5
60
70
±70
UNITS
µV
µV
µV/°C
nA
nA
nA
V
dB
dB
V/µV
V/µV
V
V/µs
50
55
0.3
18
18
±18
±11.3
106
110
3
1
±12.5
2.3
±12
122
122
10
3
±13.6
3.8
2.5
170
190
1.0
45
55
±55
±11.3
100
104
2.0
0.7
±12
2
3.25
±12
120
120
10
2
±13.6
3.8
2.5
3.25
V
CM
=
±11.3V
V
S
=
±4V
to
±18V
R
L
≥
10k, V
OUT
=
±10V
R
L
≥
2k, V
OUT
=
±10V
R
L
≥
2k
R
L
≥
2k (Notes 3, 7)
●
●
●
●
●
●
●
mA
Ashley Crt, Henley,
Marlborough, Wilts, SN8 3RH UK
Tel: +44(0)1264 731200
Fax:+44(0)1264 731444
E-mail
info@forcetechnologies.co.uk
tech@forcetechnologies.co.uk
sales@forcetechnologies.co.uk
www.forcetechnologies.co.uk
Unless otherwise stated in this SCD/Data sheet, Force Technologies Ltd reserve the right to make changes, without notice, in the products, Includ
-ing circuits, cells and/or software, described or contained herein in order to improve design and/or performance. Force Technologies resumes no
responsibility or liability for the use of any of these products, conveys no licence or any title under patent, copyright, or mask work to these
products, and makes no representation or warranties that that these products are free from patent, copyright or mask work infringement, unless
otherwise specified.
products, and makes no representation or warranties that that these products are free from patent, copyright or mask work infringement, unless
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for use in such applications do so at their own risk and agree to fully indemnify Force Technologies for any damages resulting from such
improper use or sale.
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Copyright Force Technologies Ltd 2007
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