LT6230 Datasheet, PDF (19/24 Pages) Linear Technology – 215MHz, Rail-to-Rail Output, 1.1nV/ root Hz, 3.5mA Op Amp Family

APPLICATIO S I FOR ATIO
LT6230/LT6230-10/
LT6231/LT6232
C1
1000pF
V_IN
Single Supply, Low Noise, Low Power, Bandpass Filter with Gain = 10
R1
C2
732Ω 47pF
V⁺
R2
732Ω
C3
0.1µF
R3
10k
–
LT6230
+
EN
R4
10k
0.1µF
623012 F03
V_OUT
f₀ =
1
2πRC
= 1MHz
C = √C₁C₂, R = R1 = R2
( ) ^f0 ⁼
732Ω
R
MHz, MAXIMUM f₀ = 1MHz
f_–3dB
=
f₀
2.5
A_V = 20dB at f₀
E_N = 4µV_RMS INPUT REFERRED
I_S = 3.7mA FOR V⁺ = 5V
Frequency Response Plot of
Bandpass Filter
23
3
–7
100k
1M
FREQUENCY (Hz)
10M
623012 F04
Low Noise, Low Power, Single Supply, Instrumentation
Amplifier with Gain = 100
C2
2200pF
R1
30.9Ω
V_IN1
C1
1µF
R6
511Ω
R3
30.9Ω
R5
511Ω
V_IN2
C3
1µF
V⁺
R2
511Ω
–
U1
LT6230-10
+
EN
R4
V⁺ 511Ω
–
U2
LT6230-10
+
EN
R15
88.7Ω
R13
2k
R16
88.7Ω
R14
2k
C8
68pF
R10
V⁺
511Ω
R12
511Ω
–
U3
LT6230
+
C9
EN
68pF
V_OUT
C4
10µF
V_OUT = 100 (V_IN2 – V_IN1)
( ) ( ) ^{GAIN =}
R2
R1
+
1
R10
R15
INPUT RESISTANCE = R5 = R6
f_–3dB = 310Hz TO 11MHz
E_N = 20µV_RMS INPUT REFERRED
I_S = 10.5mA FOR V_S = 5V, 0V
R1 = R3
R2 = R4
R10 = R12
R15 = R16
623012 F05
sn623012 623012fas
19