LTC1562C 데이터 시트보기 (PDF) - Linear Technology
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LTC1562C Datasheet PDF : 28 Pages
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LTC1562
ELECTRICAL CHARACTERISTICS VS = ±5V, outputs unloaded, TA = 25°C, SHDN pin to logic “low”,
unless otherwise noted. AC specs are for a single 2nd order section, RIN = R2 = RQ =10k ±0.1%, fO = 100kHz, unless noted.
SYMBOL
THD
PARAMETER
CONDITIONS
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
VS = ±2.375V, LP Output Has RL = 5k, CL = 30pF
VS = ±2.375V, BW = 200kHz, Input AC GND
VS = ±5V, BW = 200kHz, Input AC GND
BW = 200kHz, fO = 100kHz, Q = 1, Input AC GND
fIN = 20kHz, 2.8VP-P, V1 and V2 Outputs Have
RL = 5k, CL = 30pF
fIN = 100kHz, 2.8VP-P, V1 and V2 Outputs Have
RL = 5k, CL = 30pF
SHDN Pin to V+
SHDN Pin to V+, VS = ±2.375V
Shutdown-Input Bias Current
Shutdown Delay
Shutdown Recovery Delay
SHDN Pin to 0V
SHDN Pin Steps from 0V to V +
SHDN Pin Steps from V + to 0V
Inverting Input Bias Current, Each Biquad
MIN TYP MAX UNITS
+3
%
24
µVRMS
24
µVRMS
4.5
µVRMS
– 96
dB
– 78
dB
1.5 15
µA
1.0
µA
2.5
V
– 10 – 20
µA
20
µs
100
µs
5
pA
The q denotes specifications that apply over the full operating
temperature range.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
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.
TYPICAL PERFOR A CE CHARACTERISTICS
fO Error vs Nominal fO (VS = ±5V)
1.50
1.25
1.00
Q=5
0.75
0.50
Q = 2.5
0.25
0
– 0.25
– 0.50
– 0.75
Q=1
– 1.00
– 1.25
– 1.50
50 60 70 80 90 100 110 120 130 140 150
NOMINAL fO (kHz)
1562 G01
fO Error vs Nominal fO (VS = ±2.5V)
1.50
1.25
1.00
Q=5
0.75
Q = 2.5
0.50
0.25
0
– 0.25
– 0.50
– 0.75
Q=1
– 1.00
– 1.25
– 1.50
50 60 70 80 90 100 110 120 130 140 150
NOMINAL fO (kHz)
1562 G02
Q Error vs Nominal fO (VS = ±5V)
35
TA = 70°C
30
TA = 25°C
RIN = RQ
25
Q = 10
20
15
Q=5
10
Q = 2.5
5
0
Q=1
–5
50 60 70 80 90 100 110 120 130 140 150
NOMINAL fO (kHz)
1562 G03
3
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