LT1113_15 Datasheet, PDF (16/16 Pages) Linear Technology – Dual Low Noise, Precision, JFET Input Op Amp

LT1113
TYPICAL APPLICATI S
I₁
PD₁
I₂
PD₂
Light Balance Detection Circuit
R1
1M
C1
2pF TO 8pF
–
1/2 LT1113
+
V_OUT = 1M • (I₁ – I₂)
PD_1,PD₂ = HAMAMATSU S1336-5BK
WHEN EQUAL LIGHT ENTERS PHOTODIODES, V_OUT < 3mV.
V_OUT
1113 • TA07
Unity Gain Buffer with Extended Load Capacitance Drive Capability
R2
1k
C1
–
1/2 LT1113
+
V_IN
C1 = C_L ≤ 0.1µF
R1
OUTPUT SHORT-CIRCUIT CURRENT
33Ω
(∼30mA) WILL LIMIT THE RATE AT WHICH THE
V_OUT
VOLTAGE CAN CHANGE ACROSS LARGE CAPACITORS
C_L
(I = C ^ddVt )
1113 • TA08
RELATED PARTS
PART NUMBER
DESCRIPTION
LT1028
Single Low Noise Precision Op Amp
LT1124
Dual Low Noise Precision Op Amp
LT1169
Dual Low Noise Precision JFET Op Amp
LT1462
LT1464
LT1792
Dual Picoamp I_B C-Load^TM Op Amp
Dual Picoamp I_B C-Load Op Amp
Single Low Noise Precision Op Amp
LT1793
Single Low Noise Precision Op Amp
C-Load is a trademark of Linear Technology Corporation.
COMMENTS
V_NOISE = 1.1nV/√Hz Max
V_NOISE = 4.2nV/√Hz Max
10pA I_B
I_B = 2pA Max, 10000pF C-Load, I_S = 45µA
I_B = 2pA Max, 10000pF C-Load, I_S = 200µA
Single LT1113
Single LT1169
16 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] ^q FAX: [phone] ^q www.linear.com
1113fb
LT/CPI 1101 1.5K REV B • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1993