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LT2179IS#TRPBF

P1-P3P4-P6P7-P9P10-P12
LT2178/LT2179
7
21789fc
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (Hz)
30
20
10
0
–10
100k
21789 G10
VOLTAGE GAIN (dB)
PHASE SHIFT (DEG)
10k
1M
80
100
120
140
160
180
200
220
240
T
A
= 25°C
NO LOAD
PHASE
p15V
PHASE
5V, 0V,
GAIN
5V, 0V
GAIN
p15V
LOAD RESISTANCE TO GROUND ()
10k
10k
VOLTAGE GAIN (V/V)
100k
1M
10M
100k 1M 10M
217879 G11
V
S
= p15V, T
A
= 25°C
V
S
= 5V, 0V, T
A
= 25°C
V
S
= 5V, 0V, T
A
= 85°C
CAPACITIVE LOAD (pF)
10
OVERSHOOT (%)
120
100
80
60
40
20
0
100 1000 10000
20789 G12
V
S
= 5V, 0V
A
V
= 1
A
V
= 5
A
V
= 10
21789 G13
5V/DIV
500µs/DIV
A
V
= 1
C
L
= 12pF
21789 G14
1V/DIV
100µs/DIV
A
V
= 1
C
L
= 12pF
INPUT PULSE = 0V TO 3.8V
21789 G15
20mV/DIV
20µs/DIV
A
V
= 1
C
L
= 12pF
21789 G16
20mV/DIV
20µs/DIV
A
V
= 1
C
L
= 12pF
21789 G17
20mV/DIV
20µs/DIV
A
V
= 1
C
L
= 12pF
INPUT PULSE = 50mV TO 150mV
FREQUENCY (Hz)
1
COMMON MODE REJECTION RATIO (dB)
120
100
80
60
40
20
0
10 100 1k 10k
21789 G18
100k
T
A
= 25°C
V
S
= 5V, 0V
V
S
= p15V
Large-Signal Transient Response
V
S
= ±15V
Large-Signal Transient Response
V
S
= 5V, 0V
Small-Signal Transient Response
V
S
= ±2.5V
Small-Signal Transient Response
V
S
= ±15V
Small-Signal Transient Response
V
S
= 5V, 0V
Common Mode Rejection Ratio
vs Frequency
Gain, Phase vs Frequency Voltage Gain vs Load Resistance Capacitive Load Handling
LT2178/LT2179
8
21789fc
TYPICAL PERFORMANCE CHARACTERISTICS
OPERATING FREQUENCY (Hz)
0.1
PSRR (dB)
120
100
80
60
40
20
0
1
10 100 1k
21789 G19
10k 100k
T
A
= 25°C
V
S
= p2.5V + 1V
P-P
SINE WAVE
NEGATIVE
SUPPLY
POSITIVE
SUPPLY
FREQUENCY (Hz)
10
1
OUTPUT IMPEDANCE ()
10
100
10k
100
1k
21789 G20
1k
10k
100k
A
CL
= 100
A
CL
= 10
A
CL
= 1
T
A
= 25°C
V
S
= 5V, 0V
I
L
= 0
Power Supply Rejection Ratio
vs Frequency Closed Loop Output Impedance
SIMPLIFIED SCHEMATIC
1/2 LT2178
1/4 LT2179
10k 10k 2.2k 5.6k
Q5
Q6
Q11
600
600
Q1
Q21
Q2
Q22
Q9
C2
175pF
6.2k
Q7
Q28
4
1
Q12
Q3
Q16 Q14
Q29
Q4
Q24
8.6k
C1
50pF
C5
2.5pF
Q27
V
+
Q10
Q17
Q8
6.2k
Q19
Q18
Q15 Q32
1.3k
6.4k
Q37
Q30
1
3
Q25
C4
4pF
2.9k
3k
Q31
C3
40pF
Q23
Q20
2A
3k
30
Q34
Q36
OUT
Q26
30
Q35
33k
Q54
1
1
2
150k
Q33
10k
V
+
Q38
5.35k
Q45
Q55
Q51
Q42
Q44
V
+
V
–
Q46
Q47
11.5k
V
+
12.5k
Q40
Q41
Q48
9.1k
Q43
V
–
700k
700k
21789 SS
IN
–
IN
+
Q50
Q49
J1
Q39
2A
Q53
Q52
LT2178/LT2179
9
21789fc
Please see the LT2078/LT2079 data sheet for applications
information. All comments relating to specifi cations, single
APPLICATIONS INFORMATION
supply operation and phase reversal protection are directly
applicable to the LT2178/LT2179.
–
+
–
+
++
V
IN
0V TO 5V
220k*
50k
1MHz
TRIM
100Hz TRIM
240k TYP
2k
2µF
0.33µF
S1
D1
D2
S2
S3
D3
D4
S4
0.022µF
500pF
POLYSTYRENE
3pF
0.01µF
47k
Q8
2N3906
12k
1.5M
NC
Q7
2N3904
74C14
1N1
1N3
1N4
1N2
GND
V
–
V
+
F
OUT
RESET V
SS
V
DD
CLK Q7
CD4024
1µF
1N4148
1µF
100
A2
1/2 LT2178
10k
7V TO 10V
100k
LT1004-2.5
LTC
®
201
A1
1/2 LT2178
21789 TA03
10M
LINEARITY IS 0.02%
QUIESCENT CURRENT IS 90µA
SUPPLY CURRENT IS 360µA AT 1MHz
DRIFT = 50ppm/°C
*TRWMTR/5 + 120ppm/°C
Micropower 100Hz to 1MHz V-to-F Converter
P1-P3P4-P6P7-P9P10-P12

LT2179IS#TRPBF

Mfr. #:
Buy LT2179IS#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers 17 A Max, 4x, 1x S, Prec Op Amps
Lifecycle:
New from this manufacturer.
Delivery:
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