LT1466L/LT1467L
Micropower Dual/Quad
Precision Rail-to-Rail Input
and Output Op Amps
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FEATURES
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DESCRIPTION
Rail-to-Rail Input and Output
Low Supply Current: 75µA Max
390µV VOS(MAX) for VCM = V – to V +
High Common Mode Rejection Ratio: 83dB Min
High AVOL: 400V/mV Min
Wide Supply Range: 2V to ±5V
Low Input Bias Current: 6nA Typ
120kHz Gain Bandwidth Product
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APPLICATIONS
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The LT®1466L/LT1467L are dual/quad bipolar op amps
that combine rail-to-rail input and output operation with
precision specifications. Using a patented technique,
both input stages of the LT1466L/LT1467L are trimmed:
one at the negative supply and the other at the positive
supply. The resulting common mode rejection of 83dB
minimum is much better than other rail-to-rail input op
amps. A minimum open-loop gain of 400V/mV into a 10k
load virtually eliminates all gain error. Operation is specified for 3V, 5V and ± 5V supplies.
Unlike other rail-to-rail amplifiers, the input offset voltage
of 390µV maximum is guaranteed across the entire rail-torail input range, not just at half supply. The graph below
contrasts the VOS specifications of the LT1466L/LT1467L
to a competitive part that is specified only at half supply.
As can be seen, the LT1466L/LT1467L’s limits are much
tighter for inputs near either supply.
Supply Current Sensing
Driving A/D Converters
Test Equipment Amplifiers
The LT1466L is available in 8-lead PDIP and SO-8 packages with the standard dual pinout. The LT1467L features
the standard quad pinout and is available in a 16-lead
narrow SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
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TYPICAL APPLICATION
Worst-Case VOS
vs Input Common Mode Voltage
Variable Current Source
VCC
R2
10k
VIN
0V TO 2.5V
R3
5.1Ω
+
1/2 LT1466L
+
VN2222
10k
–
1/2 LT1466L
TP0610
–
R1
100k
( )( )
( )
R2
IO = VIN
R1
=
IO
INPUT OFFSET VOLTAGE (µV)
2000
TYPICAL RAIL-TO-RAIL
AMPLIFIER (65dB CMRR)
1000
LT1467L LIMITS
0
–1000
–2000
1
R3
0
VIN
51Ω
1466L/67L TA01
2
3
1
4
INPUT COMMON MODE VOLTAGE (V)
5
1466L/67L TA02
1
LT1466L/LT1467L
W W
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W
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................ ±8V
Input Current ...................................................... ±15mA
Output Short-Circuit Duration (Note 1) .........Continuous
Specified Temperature Range ...................... 0°C to 70°C
Junction Temperature ........................................... 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
U
W
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PACKAGE/ORDER INFORMATION
ORDER PART
NUMBER
TOP VIEW
OUT A 1
8
–IN A 2
A
+IN A 3
V– 4
N8 PACKAGE
8-LEAD PDIP
7
OUT B
6
–IN B
5
+IN B
B
LT1466LCN8
LT1466LCS8
+ IN A 3
V+
S8 PART MARKING
A
15 – IN D
B
C
12 + IN C
– IN B 6
11 – IN C
OUT B 7
10 OUT C
1466L
LT1467LCS
14 + IN D
13 V –
NC 8
TJMAX = 150°C, θJA = 130°C/ W (N)
TJMAX = 150°C, θJA = 190°C/ W (S)
D
4
+ IN B 5
S8 PACKAGE
8-LEAD PLASTIC SO
16 OUT D
OUT A 1
– IN A 2
V+
ORDER PART
NUMBER
TOP VIEW
9
NC
S PACKAGE
16-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 150°C/ W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VO = half supply, unless otherwise noted.
SYMBOL
VOS
PARAMETER
Input Offset Voltage
∆VOS
Input Offset Voltage Shift
Input Offset Voltage Match
(Channel-to-Channel)
Input Bias Current
IB
∆IB
IOS
Input Bias Current Shift
Input Offset Current
∆IOS
Input Offset Current Shift
Input Bias Current Match
(Channel-to-Channel)
Input Noise Voltage Density
Input Noise Current Density
Large-Signal Voltage Gain
en
in
AVOL
2
CONDITIONS
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V –, V + (Notes 3, 4)
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V + (Note 4)
VCM = V – (Note 4)
f = 1kHz
f = 1kHz
VS = 5V, VO = 0.5V to 4.4V, RL = 10k
VS = 3V, VO = 0.5V to 2.4V, RL = 10k
MIN
– 14
400
250
TYP
110
110
75
150
MAX
390
390
345
550
UNITS
µV
µV
µV
µV
3
–6
9
0.6
0.4
0.9
0.6
0.6
45
0.05
1500
1000
14
nA
nA
nA
nA
nA
nA
nA
nA
nV/√Hz
pA/ √Hz
V/mV
V/mV
28
3.6
3.6
5.1
5.1
5.1
LT1466L/LT1467L
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VO = half supply, unless otherwise noted.
SYMBOL
CMRR
VOL
PARAMETER
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel)
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel)
Output Voltage Swing LOW
VOH
Output Voltage Swing HIGH
ISC
IS
Short-Circuit Current
Supply Current per Amplifier
PSRR
CONDITIONS
VCM = V – to V +, VS = 5V
VCM = V – to V +, VS = 5V (Note 4)
VS = 2.3V to 12V, VCM = VO = 0.5V
VS = 2.3V to 12V, VCM = VO = 0.5V (Note 4)
No Load
ISINK = 0.5mA
ISINK = 2.5mA
No Load
ISOURCE = 0.5mA
ISOURCE = 2.5mA
MIN
83
80
90
84
V+ – 0.052
V+ – 0.270
V+ – 0.570
10
TYP
96
93
105
105
32
135
235
+
V – 0.026
V+ – 0.135
V+ – 0.265
17
60
MAX
75
UNITS
dB
dB
dB
dB
mV
mV
mV
V
V
V
mA
µA
TYP
140
140
2
80
170
MAX
585
585
7
500
825
UNITS
µV
µV
µV/°C
µV
µV
8
–8
16
0.7
0.5
0.8
0.7
0.6
500
400
96
93
105
105
42
150
270
V+ – 0.033
V+ – 0.155
V+ – 0.310
16
70
16
nA
nA
nA
nA
nA
nA
nA
nA
V/mV
V/mV
dB
dB
dB
dB
mV
mV
mV
V
V
V
mA
µA
60
270
470
0°C ≤ TA ≤ 70°C, VS = 5V, 0V; VS = 3V, 0V; VCM = VO = half supply, unless otherwise noted.
SYMBOL
VOS
PARAMETER
Input Offset Voltage
VOS TC
∆VOS
Input Offset Voltage Drift (Note 2)
Input Offset Voltage Shift
Input Offset Voltage Match
(Channel-to-Channel)
Input Bias Current
IB
∆IB
IOS
∆IOS
AVOL
CMRR
PSRR
VOL
VOH
ISC
IS
CONDITIONS
VCM = V +
VCM = V –
MIN
●
●
●
VCM = V – to V +
VCM = V –, V + (Notes 3, 4)
VCM = V +
VCM = V –
Input Bias Current Shift
VCM = V – to V +
Input Offset Current
VCM = V +
VCM = V –
Input Offset Current Shift
VCM = V – to V +
Input Bias Current Match
VCM = V + (Note 4)
(Channel-to-Channel)
VCM = V – (Note 4)
Large-Signal Voltage Gain
VS = 5V, VO = 0.5V to 4.4V, RL = 10k
VS = 3V, VO = 0.5V to 2.4V, RL = 10k
Common Mode Rejection Ratio
VCM = V – to V +, VS = 5V
CMRR Match (Channel-to-Channel) VCM = V – to V +, VS = 5V (Note 4)
Power Supply Rejection Ratio
VS = 2.3V to 12V, VCM = VO = 0.5V
PSRR Match (Channel-to-Channel) VS = 2.3V to 12V, VCM = VO = 0.5V (Note 4)
Output Voltage Swing LOW
No Load
ISINK = 0.5mA
ISINK = 2.5mA
Output Voltage Swing HIGH
No Load
ISOURCE = 0.5mA
ISOURCE = 2.5mA
Short-Circuit Current
Supply Current per Amplifier
●
●
●
●
– 16
●
●
●
●
●
●
●
●
●
●
●
●
100
70
80
75
80
80
●
●
●
●
●
●
●
●
V+ – 0.065
V+ – 0.305
V+ – 0.620
7
32
5.3
5.3
7.5
7.5
7.5
80
300
540
85
3
LT1466L/LT1467L
ELECTRICAL CHARACTERISTICS
TA = 25°C, VS = ±5V, VCM = VO = 0V, unless otherwise noted.
SYMBOL
VOS
PARAMETER
Input Offset Voltage
∆VOS
Input Offset Voltage Shift
Input Offset Voltage Match
(Channel-to-Channel)
Input Bias Current
IB
∆IB
IOS
∆IOS
AVOL
SR
CMRR
VOL
VOH
ISC
IS
GBW
CONDITIONS
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V –, V + (Notes 3, 4)
MIN
VCM = V +
VCM = V –
Input Bias Current Shift
VCM = V – to V +
Input Offset Current
VCM = V +
VCM = V –
Input Offset Current Shift
VCM = V – to V +
Input Bias Current Match
VCM = V + (Note 4)
(Channel-to-Channel)
VCM = V – (Note 4)
Large-Signal Voltage Gain
VO = ±4.25V, RL = 10k
Channel Separation
VO = ±4.25V, RL = 10k
Slew Rate
AV = – 1, RL = ∞
Common Mode Rejection Ratio
VCM = V – to V +
CMRR Match (Channel-to-Channel) VCM = V – to V + (Note 4)
Output Voltage Swing LOW
No Load
ISINK = 0.5mA
ISINK = 2.5mA
Output Voltage Swing HIGH
No Load
ISOURCE = 0.5mA
ISOURCE = 2.5mA
Short-Circuit Current
Supply Current per Amplifier
Gain Bandwidth Product
f = 1kHz
– 14
250
120
0.018
88
82
V+ – 0.052
V+ – 0.270
V+ – 0.570
10
TYP
120
120
80
150
MAX
475
475
390
685
UNITS
µV
µV
µV
µV
3
–6
9
0.6
0.4
0.9
0.6
0.6
450
130
0.04
102
99
V – + 0.032
V – + 0.135
V – + 0.235
V+ – 0.026
V+ – 0.135
V+ – 0.265
18
70
120
14
nA
nA
nA
nA
nA
nA
nA
nA
V/mV
dB
V/µs
dB
dB
V
V
V
V
V
V
mA
µA
kHz
28
3.6
3.6
5.1
5.1
5.1
V – + 0.060
V – + 0.270
V – + 0.470
80
0°C ≤ TA ≤ 70°C, VS = ±5V, VCM = VO = 0V, unless otherwise noted.
SYMBOL
VOS
PARAMETER
Input Offset Voltage
∆VOS
Input Offset Voltage Shift
Input Offset Voltage Match
(Channel-to-Channel)
Input Bias Current
IB
∆IB
IOS
∆IOS
AVOL
CMRR
4
CONDITIONS
VCM = V +
VCM = V –
VCM = V – to V +
VCM = V –, V + (Notes 3, 4)
VCM = V +
VCM = V –
Input Bias Current Shift
VCM = V – to V +
Input Offset Current
VCM = V +
VCM = V –
Input Offset Current Shift
VCM = V – to V +
Input Bias Current Match
VCM = V + (Note 4)
(Channel-to-Channel)
VCM = V – (Note 4)
Large-Signal Voltage Gain
VO = ±4.25V, RL = 10k
Channel Separation
VO = ±4.25V, RL = 10k
Common Mode Rejection Ratio
VCM = V – to V +
CMRR Match (Channel-to-Channel) VCM = V – to V + (Note 4)
MIN
●
●
●
●
●
●
– 16
●
●
●
●
●
●
●
●
●
●
100
120
86
80
TYP
150
150
90
180
MAX
660
660
500
900
UNITS
µV
µV
µV
µV
8
–8
16
0.8
0.6
0.9
0.7
0.6
250
130
101
98
16
nA
nA
nA
nA
nA
nA
nA
nA
V/mV
dB
dB
dB
32
5.3
5.3
7.5
7.5
7.5
LT1466L/LT1467L
ELECTRICAL CHARACTERISTICS
0°C ≤ TA ≤ 70°C, VS = ±5V, VCM = VO = 0V, unless otherwise noted.
SYMBOL
VOL
PARAMETER
Output Voltage Swing LOW
VOH
Output Voltage Swing HIGH
ISC
IS
Short-Circuit Current
Supply Current per Amplifier
CONDITIONS
No Load
ISINK = 0.5mA
ISINK = 2.5mA
No Load
ISOURCE = 0.5mA
ISOURCE = 2.5mA
MIN
●
●
●
●
●
●
●
V+ – 0.065
V+ – 0.305
V+ – 0.620
7
●
The ● denotes specifications which apply over the full operating
temperature range.
Note 1: A heat sink may be required to keep the junction temperature below
the Absolute Maximum Rating when the output is shorted indefinitely.
Note 2: This parameter is not 100% tested.
TYP
V – + 0.042
V – + 0.150
V – + 0.270
V+ – 0.033
V+ – 0.155
V+ – 0.310
18
70
MAX
V – + 0.080
V – + 0.300
V – + 0.540
90
UNITS
V
V
V
V
V
V
mA
µA
Note 3: Input offset match is the difference in offset voltage between
amplifiers measured at both VCM = V – and VCM = V +.
Note 4: Matching parameters are the difference between amplifiers A and
D and between B and C.
U W
TYPICAL PERFORMANCE CHARACTERISTICS
VOS Distribution, VCM = 0V
VOS Distribution, VCM = 5V
25
20
15
10
VS = 5V, 0V
VCM = 5V
1900 AMPLIFIERS
20
PERCENT OF UNITS (%)
VS = 5V, 0V
VCM = 0V
1900 AMPLIFIERS
PERCENT OF UNITS (%)
PERCENT OF UNITS (%)
20
VOS Shift, VCM = 0V to 5V
25
25
15
10
VS = 5V, 0V
VCM = 0V TO 5V
1900 AMPLIFIERS
15
10
5
5
5
0
– 400 – 300 – 200 –100 0 100 200 300 400
INPUT OFFSET VOLTAGE (µV)
0
– 400 – 300 – 200 –100 0
100 200 300 400
INPUT OFFSET VOLTAGE (µV)
0
– 400 – 300 – 200 –100 0 100 200 300 400
INPUT OFFSET VOLTAGE SHIFT (µV)
1466L/67L G01
1466L/67L G02
1466L/67L G03
5
LT1466L/LT1467L
U W
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Temperature
200
VS = ± 5V
60
VS = 5V, 0V
50
40
30
20
10
0
– 40 – 20
0
40
60
20
TEMPERATURE (°C)
80
150
TA = – 40°C
TA = 25°C
TA = 85°C
100
50
3
2
4
TOTAL SUPPLY VOLTAGE (V)
1
– 50
–1
5
TA = – 40°C
TA = 25°C
0.1Hz to 10Hz
Output Voltage Noise
TA = 85°C
TA = – 40°C
TA = 25°C
10
0.001
0.01
0.1
1
LOAD CURRENT (mA)
Gain and Phase Shift vs Frequency
40
1.6
50
1.4
40
1.2
1.0
0.8
VCM = 4V
0.6
VCM = 2.5V
0.4
1466L/67L G10
1466L/67L G11
20
0
–20
– 40
– 30
1000
40
GAIN
–10
– 20
10
100
FREQUENCY (Hz)
60
0
0
1
80
PHASE
10
0.2
1000
100
20
0
10
100
FREQUENCY (Hz)
120
30
20
1
140
VS = ± 2.5V
60
VOLTAGE GAIN (dB)
CURRENT NOISE (pA/√Hz)
VCM = 2.5V
70
1
10
100
FREQUENCY (kHz)
– 60
1000
1466L/67L G12
PHASE SHIFT (DEG)
100
VCM = 4V
1466L/67L G09
VS = 5V, 0V
1.8
120
60
TIME (1s/DIV)
Current Noise Spectrum
2.0
VS = 5V, 0V
80
10
1466L/67L G08
Voltage Noise Spectrum
7
VS = ± 2.5V
VCM = 0V
1466L/67L G07
140
2
3
4
5
6
1
COMMON MODE VOLTAGE (V)
1466L/67L G06
100
10
160
0
OUTPUT VOLTAGE (1µV/DIV)
SATURATION VOLTAGE (mV)
SATURATION VOLTAGE (mV)
TA = 85°C
100
6
TA = 85°C
– 25
1000
180
TA = 25°C
0
Output Saturation Voltage
vs Load Current (Output High)
1000
200
TA = 85°C
25
1466L/67L G05
Output Saturation Voltage
vs Load Current (Output Low)
0.01
0.1
1
LOAD CURRENT (mA)
TA = – 40°C
TA = 25°C
1466L/67L G04
10
0.001
VS = 5V, 0V
0
– 50
100
50
INPUT BIAS CURRENT (nA)
70
CHANGE IN OFFSET VOLTAGE (µV)
SUPPLY CURRENT PER AMPLIFIER (µA)
80
VOLTAGE NOISE (nV/√Hz)
Input Bias Current
vs Common Mode Voltage
Minimum Supply Voltage
LT1466L/LT1467L
U W
TYPICAL PERFORMANCE CHARACTERISTICS
100
GBW
60
PHASE MARGIN
100
50
80
40
60
30
40
20
20
10
PHASE MARGIN (DEG)
120
70
10
5
15
SUPPLY VOLTAGE (V)
0
VS = ± 2.5V
90
80
70
60
50
40
30
20
10
20
VS = ± 2.5V
TA = 25°C
10
100
FREQUENCY (kHz)
OVERSHOOT (%)
OUTPUT IMPEDANCE (Ω)
AV = 10
AV = 1
50
AV = 1
40
30
AV = 5
AV = 10
10
100000
100
1000
10000
CAPACITIVE LOAD (pF)
100000
RL = 2k
20
30
2
4
3
OUTPUT VOLTAGE (V)
RL = 10k
0
10
RL = 2k
20
30
– 5 – 4 –3 –2 –1 0 1 2 3
OUTPUT VOLTAGE (V)
20
100
15
90
10
5
VS = ± 5V
0
5
6
VS = ±2.5V
–5
–10
–15
1466L/67L G19
0
4
5
Output Saturation Voltage
vs Input Overdrive
– 20
1
–10
1466L/67L G18
OUTPUT SATURATION VOLTAGE (mV)
CHANGE IN OFFSET VOLTAGE (µV)
CHANGE IN OFFSET VOLTAGE (µV)
RL = 10k
0
–20
Input Offset Drift vs Time
–10
40
–30
1466L/67L G17
– 40
10
VS = ± 5V
TA = 25°C
– 40
50
10
Voltage Gain, VS = 5V, 0V
–20
1000
40
1466L/67 G16
VS = 5V, 0V
TA = 25°C
10
100
FREQUENCY (kHz)
1466L/67L G15
0
0
0
10
1
VS = ± 2.5V
20
1
–30
NEGATIVE
SUPPLY
20
Voltage Gain, VS = ±5V
60
1000
10000
FREQUENCY (Hz)
30
– 50
70
100
POSITIVE
SUPPLY
40
1000
1000
10
50
Capacitive Load Handling
80
10
60
1466L/67L G14
Closed-Loop Output Impedance
vs Frequency
100
VS = ± 2.5V
70
0
1
1466L/67L G13
10000
80
0
0
0
Power Supply Rejection Ratio
vs Frequency
CHANGE IN OFFSET VOLTAGE (µV)
140
COMMON MODE REJECTION RATIO (dB)
80
160
FREQUENCY (kHz)
Common Mode Rejection Ratio
vs Frequency
POWER SUPPLY REJECTION RATIO (dB)
Gain Bandwidth and Phase Margin
vs Supply Voltage
20 40 60 80 100 120 140 160 180 200
TIME AFTER POWER-UP (SEC)
1466L/67L G20
VS = ± 2.5V
NO LOAD
80
70
60
50
40
OUTPUT HIGH, OUTPUT LOW
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100
INPUT OVERDRIVE (mV)
1466L/67/ G21
7
LT1466L/LT1467L
U W
TYPICAL PERFORMANCE CHARACTERISTICS
Small-Signal Response
VS = ±2.5V
Channel Separation vs Frequency
Large-Signal Response
VS = ±5V
130
VS = ± 15V
CHANNEL SEPARATION (dB)
120
110
100
90
80
70
60
50
VS = ±2.5V
AV = 1
40
30
100
1k
10k
FREQUENCY (Hz)
VS = ±5V
AV = 1
1466L/67L G22
1466L/67L G23
100k
1466L/67L G24
U
W
U
U
APPLICATIONS INFORMATION
Rail-to-Rail Operation
The LT1466L/LT1467L differ from conventional op amps
in the design of both the input and output stages. Figure 1
shows a simplified schematic. The input stage consists of
two differential amplifiers, a PNP stage Q1-Q2 and an NPN
stage Q3-Q4, that are active over different portions of the
input common mode range. Each input stage is trimmed
for offset voltage. A complementary output configuration
(Q12-Q13) is employed to create an output stage with railto-rail swing. The devices are fabricated on Linear
Technology’s proprietary complementary bipolar process,
which ensures very similar DC and AC characteristics for
the output devices Q12 and Q13.
First, looking at the input stage, Q5 switches the current
from current source I1 between the two input stages.
When the input common mode voltage VCM is near the
negative supply, Q5 is reverse biased, so the current from
I1 becomes the tail current for the PNP differential pair
Q1-Q2. At the other extreme, when VCM is near the positive
supply, the PNPs Q1-Q2 are biased off. The current from
V+
I1
Q12
C1
Q5
VBIAS
Q11
Q10
V–
CC
V+
+ IN
– IN
Q3 Q4
Q1 Q2
OUT
BUFFER AND
OUTPUT BIAS
Q7
Q8
Q9
C2
Q13
Q6
D1
V–
1466L/67L F01
Figure 1. Simplified Schematic
8
LT1466L/LT1467L
U
W
U
U
APPLICATIONS INFORMATION
I1 then flows through Q5 to the current mirror D3-Q6,
furnishing the tail current for the NPN differential pair
Q3-Q4. The switchover point between stages occurs when
VCM is equal to the base voltage of Q5, which is biased
approximately 1.3V below the positive supply.
ply and the other at the positive supply. The resulting
common mode rejection ratio of 83dB minimum is much
better than typical rail-to-rail amplifiers.
The collector currents of the two input pairs are combined
in the second stage, consisting of Q7-Q11. Most of the
voltage gain in the amplifier is contained in this stage. The
output of the second stage is buffered and applied to the
output devices Q12 and Q13. Capacitors C1 and C2 form
local feedback loops around the output devices, lowering
the output impedance at high frequencies. Capacitor CC
sets the amplifier bandwidth.
The LT1466L/LT1467L contain circuits that prevent the
output from reversing polarity when the input voltage
exceeds either supply. For these circuits to work properly,
the input current should be limited to –10mA when the
input is below the negative supply, and 0.5mA when the
input is above the positive supply. If the amplifier is to be
severely overdriven, an external resistor should be used to
limit the current.
Input Offset Voltage
Output
Since the amplifier has two input stages, the input offset
voltage changes depending upon which stage is active.
When the amplifier switches between stages, the offset
voltage may go up, down or remain flat. Both stages of the
LT1466L/LT1467L are trimmed; one at the negative sup-
The output voltage swing and current sinking capability of
the LT1466L/LT1467L are affected by input overdrive as
shown in the Typical Performance Characteristics. When
monitoring voltages within 100mV of either rail, gain
should be taken to keep the output from clipping.
Overdrive Protection
9
LT1466L/LT1467L
U
PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
N8 Package
8-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.400*
(10.160)
MAX
8
7
6
5
1
2
3
4
0.255 ± 0.015*
(6.477 ± 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.065
(1.651)
TYP
0.009 – 0.015
(0.229 – 0.381)
(
+0.635
–0.381
0.125
(3.175)
MIN
0.005
(0.127)
MIN
+0.025
0.325 –0.015
8.255
0.130 ± 0.005
(3.302 ± 0.127)
0.045 – 0.065
(1.143 – 1.651)
)
0.018 ± 0.003
(0.457 ± 0.076)
0.100 ± 0.010
(2.540 ± 0.254)
0.015
(0.380)
MIN
N8 0695
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
8
7
6
5
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
1
0.010 – 0.020
× 45°
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
0.406 – 1.270
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
10
0.014 – 0.019
(0.355 – 0.483)
2
3
4
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
TYP
SO8 0996
LT1466L/LT1467L
U
PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
S Package
16-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.386 – 0.394*
(9.804 – 10.008)
16
15
14
13
12
11
10
9
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
1
0.010 – 0.020
× 45°
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
2
3
4
5
6
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
8
0.004 – 0.010
(0.101 – 0.254)
0° – 8° TYP
0.016 – 0.050
0.406 – 1.270
7
0.050
(1.270)
TYP
S16 0695
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
LT1466L/LT1467L
U
TYPICAL APPLICATIONS N
4-Pole,1kHz, 3.3V Single Supply State Variable Filter Using the LT1467L
ω02 =
C1
10,000pF
R1*
29.5k
VIN
C2
10,000pF
10,000pF
–
A1
1/4 LT1467L
R2*
8.6k
1
(R1)(C1)(R2)(C2)
R1 =
1
ω0 Q(C1)
R2 =
Q
ω0(C2)
10,000pF
–
11.8k*
A2
1/4 LT1467L
+
–
A3
1/4 LT1467L
+
21.5k*
A4
1/4 LT1467L
+
29.5k*
–
VOUT
+
10k
3.3V
11.8k*
10k
1µF
*1% RESISTORS
1466L/67L TA03
Frequency Response of 4th Order Butterworth Filter
0
GAIN
GAIN (dB)
–20
– 40
– 60
– 80
100
1k
FREQUENCY (Hz)
10k
1466L/67L TA04
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LTC 1152
Rail-to-Rail Input and Output, Zero-Drift Op Amp
High DC Accuracy, 10µV VOS(MAX), 100nV/°C Drift, 0.7MHz GBW, 0.5V/µs
Slew Rate, Maximum Supply Current 3mA
LT1366/LT1367
Dual/Quad Precision, Rail-to-Rail Input and Output
Op Amps
475µV VOS(MAX), 400kHz GBW, 0.13V/µs Slew Rate,
Maximum Supply Current 520µA per Op Amp
LT1498 /LT1499
Dual/Quad, 10MHz Rail-to-Rail Input and
Output Op Amps
High Speed, 5V/µs Slew Rate, 475µV VOS(MAX) from V + to V –,
Max Supply Current 2.2mA per Op Amp
®
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417 ● (408) 432-1900
FAX: (408) 434-0507● TELEX: 499-3977 ● www.linear-tech.com
1466l7lf LT/TP 0697 5K • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1997
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