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LT1178
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Technical data
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LINEAR TECHNOLOGY LT1178, LT1179 Technical data

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查询LT1178A供应商
FEATURES
LT1178/LT1179
17µA Max, Dual and Quad,
Single Supply, Precision Op Amps
U
DESCRIPTIO
■
17µA Max Supply Current per Amplifier
■
70µV Max Offset Voltage
■
250pA Max Offset Current
■
5nA Max Input Bias Current
■
0.9µV
■
1.5pA
■
0.5µV/°C Offset Voltage Drift
■
85kHz Gain-Bandwidth Product
■
0.04V/µs Slew Rate
■
Single Supply Operation:
0.1Hz to 10Hz Voltage Noise
P-P
0.1Hz to 10Hz Current Noise
P-P
Input Voltage Range Includes Ground Output Swings to Ground While Sinking Current No Pull Down Resistors are Needed
■
Output Sources and Sinks 5mA Load Current
U
APPLICATIO S
■
Battery or Solar Powered Systems
Portable Instrumentation Remote Sensor Amplifier Satellite Circuitry
■
Micropower Sample-and-Hold
■
Thermocouple Amplifier
■
Micropower Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LT®1178 is a micropower dual op amp in the standard 8-pin configuration; the LT1179 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. Specifications are also provided at ±15V supplies.
Both the LT1178 and LT1179 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all-NPN output stage swings to within a few millivolts of ground while sinking current—no power consuming pull down resistors are needed.
For applications where three times higher supply current is acceptable, the micropower LT1077 single, LT1078 dual and LT1079 quad are recommended. The LT1077/78/79 have significantly higher bandwidth, slew rate, lower voltage noise and better output drive capability.
U
TYPICAL APPLICATIO
Self-Buffered, Dual Output, Micropower Reference Supply Current vs Temperature
20
2
–
1/2 LT1178
3
+
4
250k*
0.1µF
LT1004-1.2
TOTAL BATTERY CURRENT
TEMPERATURE COEFFICIENT
1
2M
1M* 1M*
OUTPUT ACCURACY
LOAD REGULATION
LINE REGULATION
4V TO 9V
5
8
+
1/2 LT1178
6
–
= 0.1% FILM RESISTORS
*
= 28µA = ± 0.4% MAX = 20ppm/°C = 25ppm/mA, I = 10ppm/V
≤ 5mA, V + ≥ 5V
L
0.1µF
7
1.2365V OUTPUT
2.470V OUTPUT
LT1178/LT1179 • TA01
18
16
14
12
SUPPLY CURRENT PER AMPLIFIER (µA)
10
–50
–25
25 50
0
TEMPERATURE (°C)
VS = ±15V
VS = 5V, 0V
VS = ±1.5V
75
LT1178/LT1179 • TA02
100
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LT1178/LT1179
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ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage ...................................................... ±22V
Differential Input Voltage ....................................... ±30V
Input Voltage ............... Equal to Positive Supply Voltage
Input Voltage ............5V Below Negative Supply Voltage
Output Short-Circuit Duration .......................... Indefinite
UU
W
Operating Temperature Range
LT1178I/LT1179I .................................. – 40°C to 85°C
LT1178C/LT1178S/LT1179C/LT1179S .......0°C to 70°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec.)................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
+
V
OUT A
8
1
A
2
–IN A
+
–
3
IN A + IN B
4
V– (CASE)
H PACKAGE
8-LEAD TO-5 METAL CAN
OUT B
7
B
+
–
5
ORDER PART
NUMBER
LT1178ACH
–IN B
LT1178CH
TOP VIEW
OUT A
1
–IN A
2
­A
+
+IN A
3
–
V
4
N PACKAGE
8-LEAD PDIP
T
= 100°C, θJA = 150°C/W
JMAX
J PACKAGE 8-LEAD CERDIP
V
8
OUT B
7
–IN B
6
-
B
+
+IN B
5
OBSOLETE PACKAGE
Consider the N8 or S8 Package for Alternate Source
TOP VIEW
1
OUT A
2
–IN A
-
A
+
3
+IN A
+
4
V
5
+IN B
+
B
-
6
–IN B
7
OUT B
N PACKAGE
14-LEAD PDIP
= 110°C, θJA = 130°C/W
T
JMAX
J PACKAGE 14-LEAD CERAMIC DIP
OUT D
14
–IN D
13
-
D
+
+IN D
12
–
V
11
+IN C
10
+
C
-
–IN C
9
OUT C
8
OBSOLETE PACKAGE
Consider the N14 Package for Alternate Source
ORDER PART
NUMBER
LT1179ACN LT1179CN LT1179IN
LT1179ACJ LT1179CJ
Consult LTC Marketing for parts specified with wider operating temperature ranges. Please note that the LT1178S8 surface mount pinout differs from that of the LT1178 standard plastic or ceramic dual-in-line packages. For similiar performance with standard pinout, see the LT2178.
Not Recommended. Use LT1178S8 for New Designs.
1
NC
2
NC
3
OUT A
4
–IN A
5
+IN A
–
6
V
7
NC
8
NC
16-LEAD PLASTIC SO WIDE
T
JMAX
ORDER PART
+
NUMBER
LT1178ACN8 LT1178CN8 LT1178IN8
LT1178ACJ8 LT1178CJ8
TOP VIEW
LT1178
SW PACKAGE
= 150°C, θJA = 90°C/W
ORDER PART
+IN A
1
–
V
2
3
+IN B
4
–IN B
8-LEAD PLASTIC SO
= 150°C, θJA = 200°C/W
T
JMAX
TOP VIEW
­A
+
+ B
-
S8 PACKAGE
–IN A
8
OUT A
7
+
6
V
5
OUT B
NUMBER
LT1178S8
PART
MARKING
1178
ORDER PART
NUMBER
16
NC
15
NC
+
14
V
13
OUT B
12
–IN B
11
+IN B
10
NC
9
NC
LT1178SW LT1179SW
OUT A
–IN A
+IN A
+IN B
–IN B
OUT B
TOP VIEW
1
2
3
+
4
V
NC
LT1179
5
6
7
8
SW PACKAGE
16-LEAD PLASTIC SO WIDE
= 150°C, θJA = 90°C/W
T
JMAX
16
OUT D
15
–IN D
14
+IN D
–
13
V
12
+IN C
11
–IN C
10
OUT C
9
NC
LT11778/1179 • POI01
ELECTRICAL CHARACTERISTICS
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted.
LT1178AC/LT1179AC LT1178I/C/S/LT1179I/C/S
SYMBOL PARAMETER CONDITIONS (NOTE 2) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT1178 30 70 40 120 µV
LT1179 35 100 40 150 µV LT1178SW 80 450 µV LT1179SW 90 600 µV LT1178S8 60 180 µV
∆V
OS
Long Term Input Offset 0.5 0.6 µV/Mo
∆Time Voltage Stability
I
OS
Input Offset Current 0.05 0.25 0.05 0.35 nA
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2
LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS (NOTE 2) MIN TYP MAX MIN TYP MAX UNITS
I
B
e
n
i
n
CMRR Common Mode Rejection Ratio VCM = 0V to 3.5V 93 103 90 102 dB
PSRR Power Supply Rejection Ratio VS = 2.2V to 12V 94 104 92 104 dB
A
VOL
SR Slew Rate AV = 1, CL = 10pF (Note 4) 0.013 0.025 0.013 0.025 V/µs
GBW Gain Bandwidth Product fO ≤ 5kHz 60 60 kHz
I
S
Input Bias Current 3 5 3 6 nA
Input Noise Voltage 0.1Hz to 10Hz (Note 3) 0.9 2.0 0.9 µV
Input Noise Voltage Density fO = 10Hz (Note 3) 50 75 50 nV/√Hz
f
= 1000Hz (Note 3) 49 65 49 nV/√Hz
O
Input Noise Current 0.1Hz to 10Hz (Note 3) 1.5 2.5 1.5 pAp-p
Input Noise Current Density fO = 10Hz (Note 3) 0.03 0.07 0.03 pA/√Hz
f
= 1000Hz 0.01 0.01 pA/√Hz
O
Input Resistance (Note 4) Differential Mode 0.8 2.0 0.6 2.0 GΩ Common Mode 12 12 GΩ
Input Voltage Range 3.5 3.9 3.5 3.9 V
Large Signal Voltage Gain VO = 0.03V to 4V, No Load 140 700 110 700 V/mV
(Note 4)
= 0.03V to 3.5V, RL = 50k 80 200 70 200 V/mV
V
O
Maximum Output Voltage Output Low, No Load 6.5 9 6.5 9 mV Swing Output Low, 2k to GND 0.2 0.6 0.2 0.6 mV
Supply Current 13 18 14 21 µA per Amplifier VS = ±1.5V, VO = 0V 12 17 13 20 µA
Channel Separation ∆VIN = 3V, RL = 10k 130 130 dB
Minimum Supply Voltage (Note 5) 2.0 2.2 2.0 2.2 V
Output Low, I Output High, No Load 4.2 4.4 4.2 4.4 V Output High 2k to GND 3.5 3.8 3.5 3.8 V
VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, TA = 25°C, unless noted.
LT1178AC/LT1179AC LT1178I/C/S/LT1179I/C/S
0–0.3 0 –0.3 V
= 100µA 120 160 120 160 mV
SINK
P-P
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS
temperature range of –40°C ≤ T
≤ 85°C for I grades, 0°C ≤ TA ≤ 70°C for SW grades, VS = 5V, 0V; VCM = 0.1V, VO = 1.4V, unless
A
The ● denotes specifications which apply over the full operating
noted. (Note 7)
LT1178I/LT1179I LT1178SW/LT1179SW
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
∆VOS/∆T Input Offset Voltage Drift (Note 6) ● 0.6 3.0 0.8 4.5 µV/°C
I
OS
I
B
CMRR Common Mode Rejection VCM = 0.05V to 3.2V I grade ● 84 98 86 100 dB
PSRR Power Supply Rejection VS = 3.0V to 12V I grade ● 86 100 88 102 dB
A
VOL
I
S
lnput Offset Voltage LT1178 ● 80 315 120 650 µV
LT1179 ● 80 345 130 800 µV
Input Offset Current ● 0.07 0.7 0.06 0.50 nA Input Bias Current ● 48 37 nA
Ratio V
Ratio VS = 2.5V to 12V S grade
Large-Signal Voltage Gain VO = 0.05V to 4V, No Load (Note 4) ● 55 350 80 500 V/mV
Maximum Output Voltage Output Low, No Load ● 913 811 mV Swing Output Low, I
Supply Current per Amplifier ● 15 27 15 24 µA
= 0V to 3.4V S grade
CM
= 0.05V to 3.5V, RL = 50k ● 35 130 45 160 V/mV
V
O
= 100µA ● 160 220 140 190 mV
Output High, No Load
SINK
Output High, 2k to GND
● 3.9 4.2 4.1 4.3 V
● 3.0 3.7 3.3 3.8 V
The ● denotes specifications which apply over the full operating temperature range of 0°C ≤ TA ≤ 70°C, VS = 5V, 0V, VCM = 0.1V, VO = 1.4V, unless noted.
LT1178AC/LT1179AC LT1178C/S8/LT1179C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
∆VOS/∆T Input Offset Voltage Drift (Note 6) ● 0.5 2.2 0.6 3.0 µV/°C
I
OS
I
B
CMRR Common Mode Rejection Ratio VCM = 0V to 3.4V ● 90 101 86 100 dB
PSRR Power Supply Rejection Ratio VS = 2.5V to 12V ● 90 102 88 102 dB
A
VOL
I
S
lnput Offset Voltage LT1178 ● 50 170 65 250 µV
LT1178S8 LT1179
LT1178S8
Input Offset Current ● 0.06 0.35 0.06 0.50 nA Input Bias Current ● 36 37 nA
Large-Signal Voltage Gain VO = 0.05V to 4V, No Load (Note 4) ● 105 500 80 500 V/mV
V
= 0.05V to 3.5V, RL = 50k ● 55 160 45 160 V/mV
O
Maximum Output Voltage Output Low, No Load ● 811 811 mV Swing Output Low, I
Output High, No Load Output High, 2k to GND
Supply Current per Amplifier ● 14 21 15 24 µA
= 100µA ● 140 190 140 190 mV
SINK
● 85 350 µV
● 60 200 70 290 µV
● 0.6 3.5 µV/°C
● 4.1 4.3 4.1 4.3 V
● 3.3 3.8 3.3 3.8 V
4
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
I
OS
I
B
CMRR Common Mode Rejection Ratio VCM = 13.5V, –15V 97 106 94 106 dB
PSRR Power Supply Rejection Ratio VS = 5V, 0V to ±18V 96 112 94 112 dB
A
VOL
V
OUT
SR Slew Rate AV = 1 0.02 0.04 0.02 0.04 V/µs
GBW Gain Bandwidth Product fO ≤ 5kHz 85 85 kHz
I
S
Input Offset Voltage 80 350 100 480 µV
LT1178SW 150 900 µV LT1179SW 160 1050 µV LT1178S8 120 350 µV
lnput Offset Current 0.05 0.25 0.05 0.35 nA
Input Bias Current 3 5 3 6 nA
Input Voltage Range 13.5 13.9 13.5 13.9 V
Large-Signal Voltage Gain VO = ±10V, RL = 50k 300 1200 250 1000 V/mV
= ±10V, No Load 600 2500 400 2500 V/mV
V
O
Maximum Output Voltage Swing RL = 50k ±13.0 ±14.2 ±13.0 ±14.2 V
R
= 2k ±11.0 ±12.7 ±11.0 ±12.7 V
L
Supply Current per Amplifier 16 21 17 25 µA
VS = ±15V, TA = 25°C, unless noted.
LT1178AC/LT1179AC LT1178I/C/S/LT1179I/C/S
–15.0 –15.3 –15.0 –15.3 V
The ● denotes specifications which apply over the full operating temperature range of –40°C ≤ TA ≤ 85°C for I grades, 0°C ≤ TA ≤ 70°C for SW grades, VS = ±15V, unless noted.
LT1178I/LT1179I LT1178SW/LT1179SW
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
∆VOS/∆T Input Offset Voltage Drift (Note 6) ● 0.7 4.0 0.9 5.5 µV/°C
I
OS
I
B
A
VOL
CMRR Common Mode Rejection Ratio VCM = 13V, –14.9V ● 88 103 91 104 dB
PSRR Power Supply Rejection Ratio VS = 5V, 0V to ±18V ● 88 109 91 110 dB
I
S
lnput Offset Voltage LT1178 ● 130 740 190 1150 µV
LT1179
Input Offset Current ● 0.07 0.7 0.06 0.35 nA Input Bias Current ● 48 37 nA
Large-Signal Voltage Gain VO = ±10V, RL = 50k ● 100 500 150 750 V/mV
Maximum Output Voltage Swing RL = 5k ● ±11.0 ±13.5 ±11.0 ±13.5 V Supply Current per Amplifier ● 19 30 18 28 µA
● 130 740 200 1300 µV
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LT1178/LT1179
ELECTRICAL CHARACTERISTICS
ture range of 0°C ≤ T
≤ 70°C, VS = ±15V, unless noted.
A
The ● denotes specifications which apply over the full operating tempera-
LT1178AC/LT1179AC LT1178C/S8/LT1179C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
lnput Offset Voltage ● 100 480 130 660 µV
LT1178S8
● 150 540 µV
∆VOS/∆T Input Offset Voltage Drift (Note 6) ● 0.6 2.8 0.7 4.0 µV/°C
LT1178S8
I
OS
I
B
A
VOL
Input Offset Current ● 0.06 0.35 0.06 0.35 nA Input Bias Current ● 36 37 nA
Large-Signal Voltage Gain VO = ±10V, RL = 50k ● 200 800 150 750 V/mV
● 0.7 3.8 µV/°C
CMRR Common Mode Rejection Ratio VCM = 13V, –15V ● 94 104 91 104 dB
PSRR Power Supply Rejection Ratio VS = 5V, 0V to ±18V ● 93 110 91 110 dB
Maximum Output Voltage Swing RL = 5k ● ±11.0 ±13.6 ±11.0 ±13.6 V
I
S
Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
Note 2: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers; (i.e., out of 100 LT1179s, or 100 LT1178s, typically 240 op amps, or 120, will be better than the indicated specification).
Note 3: This parameter is tested on a sample basis only. All noise parameters are tested with V
Supply Current per Amplifier ● 17 24 18 28 µA
Note 4: This parameter is guaranteed by design and is not tested. Note 5: Power supply rejection ratio is measured at the minimum supply
voltage. The op amps actually work at 1.7V supply but with a typical offset skew of –300µV.
Note 6: This parameter is not 100% tested. Note 7: During testing at –40°C, the 5V power supply turn on-time is less
than 0.5 seconds.
= ±2.5, VO = 0V.
S
UW
TYPICAL PERFOR A CE CHARACTERISTICS
Input Offset Voltage Distribution N, J, H Package
2000
1500
1000
NUMBER OF OP AMPS
500
0
LT1178N8
980
LT1178J8
190
LT1178H8
190
LT1179N
702
LT1179J
144
OP AMPS
6104
TESTED
–150
–100 –50 0 50
OFFSET VOLTAGE (µV)
V
= 5V, 0V
S
T
= 25°C
A
100 150
LT1178/LT1179 • TPC01
Input Offset Voltage Distribution Surface Mount Package
800
V
= 5V, 0V
S
T
= 25°C
A
600
400
NUMBER OF OP AMPS
200
0
– 600
– 400 – 200 0 200
OFFSET VOLTAGE (µV)
262 342
1892
LT1178SW LT1179SW OP AMPS TESTED
400 600
LT1178/LT1179 • TPC02
Minimum Supply Voltage
100
V– = 0V
OFFSET VOLTAGE SHIFT (µV)
0
–100
–200
–300
–400
–500
NON-FUNCTIONAL
0
85°C
1
POSITIVE SUPPLY VOLTAGE (V)
25°C
–40°C
23
LT1178/LT1179 • TPC03
6
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UW
LOAD RESISTANCE TO GROUND (Ω)
VOLTAGE GAIN (V/V)
LT1178/LT1179 • TPC12
10k
10k 100k 1M 10M
100k
1M
10M
VS = ±15V, TA = 25°C
VS = 5V, 0V, TA = 85°C
VS = 5V, 0V, TA = 25°C
TYPICAL PERFOR A CE CHARACTERISTICS
LT1178/LT1179
Input Bias and Offset Currents vs Temperature Short-Circuit Current
100
VS = 5V, 0V
75
I
50
INPUT OFFSET
CURRENT (pA)
25
–2.5
–3.0
–3.5
INPUT BIAS
CURRENT (nA)
– 4.0
–50
–25 0
TEMPERATURE (°C)
OS
I
B
50 100
25 75
LT1178/LT1179 • TPC04
Output Saturation vs Temperature vs Sink Current
1000
VS = 5V, 0V
100
10
SATURATION VOLTAGE (mV)
1
0.1 –50 25 75
–25 0
TEMPERATURE (°C)
I
= 1mA
SINK
I
= 100µA
SINK
I
= 1µA
SINK
NO LOAD
10k TO GROUND
2k TO GROUND
50 100
LT1178/LT1179 • TPC05
20
10
0
–10
–20
SHORT-CIRCUIT CURRENT (mA)
SINKING SOURCING
–30
0
TIME FROM OUTPUT SHORT TO GROUND (MINUTES)
0.1Hz to 10Hz Noise Noise Spectrum0.01Hz to 10Hz Noise
VS = ±2.5V, TA = 25°C
NOISE VOLTAGE (0.4µV/DIV)
0
CHANNEL A
NOISE VOLTAGE (0.4µV/DIV)
CHANNEL B
426 12 TIME (SECONDS)
810
LT1178/LT1179 • TPC07
VS = ±2.5V, TA = 25°C
0
4020 60 120
TIME (SECONDS)
CHANNEL A
CHANNEL B
80 100
LT1178/LT1179 • TPC08
1000
VS = ± 2.5V
= 25°C
T
A
300
100
1/f CORNER
30
VOLTAGE NOISE DENSITY (nV/√Hz)
CURRENT NOISE DENSITY (fA/√Hz)
0.5Hz
10
0.1 10 100 1k
CURRENT
NOISE
1
FREQUENCY (Hz)
1
VS = 5V, 0V
VS = ±15V
VS = ±2.5V
VS = ±2.5V
VS = ±15V
2
LT1178/LT1179 • TPC06
VOLTAGE NOISE
LT1178/LT1179 • TPC09
Voltage Gain vs Frequency Voltage Gain vs Load ResistanceGain, Phase vs Frequency
140
120
100
80
60
40
VOLTAGE GAIN (dB)
20
0
–20
0.001 0.01 0.1 1
VS = 5V, 0V
10 100
FREQUENCY (Hz)
TA = 25°C
VS = ±15V
100k
1k 10k 1M
LT1178/LT1179 • TPC10
30
20
10
VOLTAGE GAIN (dB)
GAIN
0
5V, 0V
GAIN
–10
±15V
10k 100k 1M
FREQUENCY (Hz)
TA = 25°C NO LOAD
PHASE
±15V
PHASE
5V, 0V
LT1178/LT1179 • TPC11
80
100
PHASE SHIFT (DEGREES)
120
140
160
180
200
220
240
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LT1178/LT1179
UW
TYPICAL PERFOR A CE CHARACTERISTICS
Capacitive Load Handling
120
VS = 5V, 0V
100
80
60
OVERSHOOT (%)
40
20
AV = 5
0
10 100 1000 10,000
AV = 1
AV = 10
CAPACITIVE LOAD (pF)
LT1178/LT1179 • TPC13
Small-Signal Transient Response V
= ±2.5V
S
20mV/DIV
Large-Signal Transient Response VS = ±15V
C
= 12pF
L
500µs/DIVAV = 1
Small-Signal Transient Response VS = ±15V
20mV/DIV
Large-Signal Transient Response VS = 5V, 0V
1V/DIV
= 1
V
C
= 12pF
L
INPUT PULSE = 0V TO 3.8V
100µs/DIVA
Small-Signal Transient Response VS = 5V, 0V
20mV/DIV
–100mV
AV = 1 CL = 12pF
Common Mode Rejection Ratio vs Frequency Closed Loop Output Impedance
120
100
80
60
40
20
COMMON MODE REJECTION RATIO (dB)
0
1
10 100 1k 10k
20µs/DIV
VS = 5V, 0V
FREQUENCY (Hz)
TA = 25°C
VS = ±15V
LT1178/LT1179 • TPC19
100k
AV = 1 CL = 12pF
20µs/DIV
Power Supply Rejection Ratio vs Frequency
120
100
80
60
40
20
VS = ±2.5V + 1Vp-p SINE WAVE
POWER SUPPLY REJECTION RATIO (dB)
T
0
0.1
= 25°C
A
NEGATIVE
SUPPLY
10 100 1k
1
FREQUENCY (Hz)
POSITIVE SUPPLY
10k 100k
LT1188/LT1189 • TPC20
CL = 12pF INPUT 50 TO 150mV
10k
ACL = 100
1k
ACL = 10
100
10
OUTPUT IMPEDANCE (Ω)
1
10
20µs/DIVAV = 1
100
FREQUENCY (Hz)
ACL = 1
1k
VS = 5V, 0V
= 0
I
L
= 25°C
T
A
10k
LT1178/1179 • TPC21
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100k
8
WUUU
APPLICATIO S I FOR ATIO
LT1178/LT1179
Please see the LT1078/LT1079 data sheet for applications information. All comments relating to specifications, single
Micropower 100Hz to 1MHz V-to-F Converter
A1
0.33µF
1.5M
47k
0.01µF
LTC201
500pF
POLYSTYRENE
12k
Q8
2N3906
3pF
NC
Q7 2N3904
74C14
10M
F
OUT
IN1
S3
D3
D4
S4
IN3
IN4
IN2
0V TO 5V
1MHz
TRIM
V
IN
220k*
50k
100Hz
TRIM
240k
TYPICAL
+
1/2 LT1178
–
2k
2µF
S1
D1
0.022µF
D2
S2
supply operation and phase reversal protection are directly applicable to the LT1178/LT1179.
7V TO 10V
100k
10k
1N4148
+ +
V
DD
CLK
RESET
CD4024
+
V
V
GND
Q7
V
SS
–
100Ω
1µF1µF
LINEARITY IS 0.02% QUIESCENT CURRENT IS 90µA SUPPLY CURRENT IS 360µA AT 1MHz DRIFT ≈ 50ppm/°C *TRW MTR/5 + 120ppm/°C
A2
1/2 LT1178
+
–
LT1004– 2.5
LT1178/LT1179 • AI01
WW
SI PLIFIED SCHE ATIC
10k
10k 2.2k
Q6 Q16 Q14 Q15 Q32
Q5
Q3
Q12
Q11
Q1
600Ω
IN
–
+
IN
600Ω
Q21
Q2
Q22
Q9
4
1
C2
175pF
6.2k 6.2k
Q27
Q28
+
V
Q39
Q7 Q8
5.6k 1.3k 6.4k
Q29
Q24
C1
Q4
50pF
8.6k
C5
2.5pF
Q18
Q10 Q17
40pF
Q19
1/2 LT1178 1/4 LT1179
Q37
C3
Q20 2A
+
V
33k
Q54
1
Q30
1
3
3k
Q25
C4
2.9k
4pF
Q31
Q23
Q34
3k
Q35
Q26
30Ω
OUT
Q36
10k
30Ω
Q53
Q33
150k
V
Q38
2
Q47
Q46
–
V
+
V
Q44
Q48
Q42
Q50
+
Q45
Q51
Q55
2A
Q43
5.35k
1
Q40
9.1k
12.5k11.5k
Q52
Q41
J1
Q49
700k
A
700k
–
V
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9
LT1178/LT1179
PACKAGE DESCRIPTIO
U
H Package
8-Lead TO-5 Metal Can (.230 Inch PCD)
(Reference LTC DWG # 05-08-1321)
.016 – .021**
(0.406 – 0.533)
.040
(1.016)
MAX
SEATING
PLANE
.010 – .045*
(0.254 – 1.143)
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER
DIP/PLATE OR TIN PLATE LEADS
0° – 15°
.335 – .370
(8.509 – 9.398)
DIA
.305 – .335
(7.747 – 8.509)
.045 – .068
(1.143 – 1.650)
FULL LEAD
OPTION
45°TYP
.028 – .034
(0.711 – 0.864)
.050
(1.270)
MAX
GAUGE PLANE
.165 – .185
(4.191 – 4.699)
.500 – .750
(12.700 – 19.050)
REFERENCE PLANE
*
LEAD DIAMETER IS UNCONTROLLED BETWEEN THE REFERENCE PLANE AND THE SEATING PLANE
**
FOR SOLDER DIP LEAD FINISH, LEAD DIAMETER IS
J8 Package
8-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
CORNER LEADS OPTION
(4 PLCS)
.023 – .045
(0.584 – 1.143)
HALF LEAD
OPTION
.045 – .065
(1.143 – 1.651)
.014 – .026
(0.360 – 0.660)
.110 – .160
(2.794 – 4.064)
INSULATING
STANDOFF
.015 – .060
(0.381 – 1.524)
.100
(2.54)
BSC
.200
(5.080)
MAX
.125
3.175 MIN
.005
(0.127)
MIN
.025
(0.635)
RAD TYP
.027 – .045
(0.686 – 1.143)
PIN 1
.016 – .024
(0.406 – 0.610)
87
12
.230
(5.842)
TYP
.405
(10.287)
MAX
H8 (TO-5) 0.230 PCD 0801
65
3
4
.220 – .310
(5.588 – 7.874)
J8 0801
10
.300 BSC
(7.62 BSC)
.008 – .018
(0.203 – 0.457)
NOTE: LEAD DIMENSIONS APPLY TO SOLDER DIP/PLATE OR TIN PLATE LEADS
0° – 15°
.045 – .065
(1.143 – 1.651)
J Package
14-Lead CERDIP (Narrow .300 Inch, Hermetic)
(Reference LTC DWG # 05-08-1110)
.200
(5.080)
MAX
.014 – .026
(0.360 – 0.660)
.100
(2.54)
BSC
.015 – .060
(0.381 – 1.524)
.125
(3.175)
MIN
J14 0801
.005
(0.127)
MIN
.025
(0.635)
RAD TYP
14
234
1
OBSOLETE PACKAGES
.785
(19.939)
MAX
11 891013
12
.220 – .310
(5.588 – 7.874)
56
7
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PACKAGE DESCRIPTIO
U
N8 Package
8-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
.255 ± .015*
(6.477 ± 0.381)
.400*
(10.160)
MAX
87 6
1234
LT1178/LT1179
5
.300 – .325
(7.620 – 8.255)
.065
(1.651)
.008 – .015
(0.203 – 0.381)
+.035
.325
–.015 +0.889
8.255
()
–0.381
NOTE:
1. DIMENSIONS ARE
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
INCHES
MILLIMETERS
TYP
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
N Package
14-Lead PDIP (Narrow .300 Inch)
(Reference LTC DWG # 05-08-1510)
14
.255 ± .015*
(6.477 ± 0.381)
.130 ± .005
(3.302 ± 0.127)
.120
.020
(3.048)
MIN
(0.508)
.018 ± .003
(0.457 ± 0.076)
.770*
(19.558)
MAX
11
1213
MIN
N8 1002
8910
.300 – .325
(7.620 – 8.255)
.008 – .015
(0.203 – 0.381)
+.035
.325
–.015 +0.889
8.255
()
–0.381
NOTE:
1. DIMENSIONS ARE
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm)
INCHES
MILLIMETERS
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.
.020
(0.508)
MIN
.130 ± .005
(3.302 ± 0.127)
.120
(3.048)
MIN
.005
(0.125)
MIN
2
31
.045 – .065
(1.143 – 1.651)
.100
(2.54)
BSC
6
7
.065
(1.651)
TYP
.018 ± .003
(0.457 ± 0.076)
N14 1002
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5
4
11
LT1178/LT1179
PACKAGE DESCRIPTIO
N
.245 MIN
123 N/2
.030 ±.005
TYP
RECOMMENDED SOLDER PAD LAYOUT
U
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.189 – .197
.050 BSC
.045 ±.005
.160
±.005
.228 – .244
(5.791 – 6.197)
(4.801 – 5.004)
8
N
1
NOTE 3
7
2
6
3
5
N/2
4
.150 – .157
(3.810 – 3.988)
NOTE 3
.030 ±.005
TYP
.005
(0.127)
RAD MIN
.010 – .020
(0.254 – 0.508)
.008 – .010
(0.203 – 0.254)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
× 45°
.016 – .050
(0.406 – 1.270)
INCHES
(MILLIMETERS)
0°– 8° TYP
SW Package
16-Lead Plastic Small Outline (Wide .300 Inch)
(Reference LTC DWG # 05-08-1620)
.050 BSC
.045 ±.005
N
.325
.420 MIN
123 N/2
RECOMMENDED SOLDER PAD LAYOUT
.291 – .299
(7.391 – 7.595)
NOTE 4
.010 – .029
(0.254 – 0.737)
× 45°
±.005
0° – 8° TYP
.053 – .069
(1.346 – 1.752)
(0.355 – 0.483)
NOTE 3
.093 – .104
(2.362 – 2.642)
.014 – .019
TYP
(10.109 – 10.490)
15 1413121110 9
16
N
2345
1
.398 – .413
NOTE 4
6
.004 – .010
(0.101 – 0.254)
.050
(1.270)
BSC
N/2
78
.037 – .045
(0.940 – 1.143)
SO8 0502
.394 – .419
(10.007 – 10.643)
12
.009 – .013
(0.229 – 0.330)
NOTE:
1. DIMENSIONS IN
2. DRAWING NOT TO SCALE
3. PIN 1 IDENT, NOTCH ON TOP AND CAVITIES ON THE BOTTOM OF PACKAGES ARE THE MANUFACTURING OPTIONS. THE PART MAY BE SUPPLIED WITH OR WITHOUT ANY OF THE OPTIONS
4. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
NOTE 3
(0.406 – 1.270)
INCHES
(MILLIMETERS)
.016 – .050
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507
●
www.linear.com
.050
(1.270)
BSC
.014 – .019
(0.356 – 0.482)
TYP
.004 – .012
(0.102 – 0.305)
S16 (WIDE) 0502
LW/TP 1102 1K REV B • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
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