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