LT1077_15 Datasheet, PDF (12/16 Pages) Linear Technology – Micropower, Single Supply, Precision Op Amp

LT1077
TYPICAL APPLICATIO S
±250V Common Mode Range Difference Amplifier (A_V = 1)
R1
1M
– IN 3
R5
975k
4
1
R2
3V TO 18V ^R6
20k
25k
2
7
2
50k OPTIONAL
CMRR
TRIM
R3
1M
COMMON _{+ IN 7}
MODE
6
OUT
3
6
4
INPUT
± 250V
R4
19.608k
5
OV TO –18V
R1 TO R6: VISHAY 444 ACCUTRACT THIN FILM
SIP NETWORK
X :VISHAY 444 PIN NUMBERS
VISHAY INTERTECHNOLOGY, INC.
63 LINCOLN HIGHWAY
MALVERN, PA 19355
COMMON MODE REJECTION RATIO = 74dB (RESISTOR LIMITED)
WITH OPTIONAL TRIM = 108dB
OUTPUT OFFSET (TRIMMABLE TO ZERO) = 500µV
OUTPUT OFFSET DRIFT = 25µV/°C
INPUT RESISTANCE = 1M
COMMON MODE RANGE = ± 250V, V⁺ = 6.2V TO 18V, V^– = –4.7V TO –18V
= ± 100V, V⁺⁺≥ 3.2V, V^– ≤ –1.8V
= 100V, –13V, V⁺ ≥ 3.2V, V^– = 0V
LT1077 • TA04
Two Terminal Current Source
3.6V TO 40V
2_– 7
6
LT1077
3₊
4
750k
I_S
+
R1 V_R1
–
LT1034
1.2V
LT1077 • TA05
I_O
R_L
I_O =
V_R1
R₁
+ I_S
1.230V
= _R1 + 50µA
MINIMUM CURRENT = 50µA (R1 → ∞)
MAXIMUM CURRENT = 10.3mA (R1 = 120Ω)
Half-Wave Rectifier
2M
1M
INPUT
1M
3V
–
LT1077
+
1.8V
–1.8V
OUTPUT
V_0MIN = 6mV
NO DISTORTION TO 100Hz
1.8V
0
LT1077 • TA06
1077fa
12