LTC1562 Linear Technology, LTC1562 Datasheet - Page 3

• Manufacturer Part Number: LTC1562
• Description: Very Low Noise/ Low Distortion Active RC Quad Universal Filter
• Manufacturer: Linear Technology

unless otherwise noted. AC specs are for a single 2nd order section, R
SYMBOL
THD
The
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
TYPICAL PERFOR A CE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
– 0.25
– 0.50
– 0.75
–1.00
–1.25
–1.50
1.50
1.25
1.00
0.75
0.50
0.25
denotes specifications that apply over the full operating
0
50
f
O
Error vs Nominal f
60
PARAMETER
Q Error
Wideband Output Noise,
Lowpass Response (V2 Output)
Input-Referred Noise, Gain = 100
Total Harmonic Distortion,
Lowpass Response (V2 Output)
Shutdown Supply Current
Shutdown-Input Logic Threshold
Shutdown-Input Bias Current
Shutdown Delay
Shutdown Recovery Delay
Inverting Input Bias Current, Each Biquad
70
80
NOMINAL f
90
100
O
110
(kHz)
O
Q = 2.5
Q = 1
(V
120
W
S
130
= 5V)
Q = 5
140
1562 G01
U
150
CONDITIONS
V
V
V
BW = 200kHz, f
f
R
f
R
SHDN Pin to V
SHDN Pin to V
SHDN Pin to 0V
SHDN Pin Steps from 0V to V
SHDN Pin Steps from V
IN
IN
– 0.25
– 0.50
– 0.75
–1.00
–1.25
–1.50
S
S
S
L
L
1.50
1.25
1.00
0.75
0.50
0.25
= 2.375V, LP Output Has R
= 2.375V, BW = 200kHz, Input AC GND
= 5V, BW = 200kHz, Input AC GND
= 20kHz, 2.8V
= 5k, C
= 100kHz, 2.8V
= 5k, C
0
50
f
O
Error vs Nominal f
60
L
L
= 30pF
= 30pF
V
70
S
+
+
= 5V, outputs unloaded, T
O
, V
P-P
= 100kHz, Q = 1, Input AC GND
80
P-P
S
NOMINAL f
, V1 and V2 Outputs Have
= 2.375V
, V1 and V2 Outputs Have
90
Q = 2.5
+
Note 2: f
f
IN
O
100
to 0V
temperature coefficient, – 40 C to 85 C, is 25ppm/ C typical.
= R2 = R
O
110
Q = 1
(kHz)
+
O
L
(V
120
O
= 5k, C
S
Q = 5
change from 5V to 2.375 supplies is – 0.15% typical,
= 2.5V)
130
Q
=10k 0.1%, f
L
140
1562 G02
= 30pF
150
A
= 25 C, SHDN pin to logic “low”,
– 5
35
30
25
20
15
10
O
5
0
50
= 100kHz, unless noted.
Q Error vs Nominal f
R
IN
60
= R
70
Q
T
T
MIN
A
A
= 70 C
= 25 C
80
NOMINAL f
90
TYP
– 96
– 78
– 10
100
4.5
1.5
1.0
2.5
+ 3
24
24
20
100
5
LTC1562
O
110
O
Q = 10
(kHz)
(V
MAX
– 20
120
15
S
= 5V)
130
Q = 2.5
Q = 1
Q = 5
140
UNITS
1562 G03
V
V
V
3
RMS
RMS
RMS
150
dB
dB
pA
%
A
A
V
A
s
s