Datasheet

3
LTC1065
1065fb
PARAMETER CONDITIONS MIN TYP MAX UNITS
Filter Gain V
S
= ±2.375V, f
CLK
= 500kHz, f
C
= 5kHz
f
IN
= 1kHz 0.225 0.185 0.145 dB
f
IN
= 2.5kHz 1.1 1.0 0.83 dB
f
IN
= 4kHz 2.35 2.15 1.9 dB
f
IN
= 5kHz 3.35 3.1 2.7 dB
f
IN
= 10kHz 14.5 –14.1 –13.0 dB
Clock Feedthrough ±2.375V V
S
±7.5V 50 µV
RMS
Wideband Noise (Note 4) ±2.375V V
S
±7.5V, 1Hz < f < f
CLK
80 µV
RMS
THD + Wideband Noise (Note 5) V
S
= ±7.5V, f
C
= 20kHz, f
IN
= 1kHz, 87 dB
2V
RMS
V
IN
2.5V
RMS
Filter Output ± DC Swing V
S
= ±2.375V 1.5/–2.0 1.7/2.2 V
1.3/–1.8 V
V
S
= ±5V 4.0/–4.5 4.3/–4.8 V
3.8/–4.3 V
V
S
= ±7.5V 6.5/–7.0 6.8/–7.3 V
6.3/–6.8 V
Input Bias Current 10 nA
Dynamic Input Impedance 800 M
Output DC Offset (Note 6) V
S
= ±2.375V 2 mV
V
S
= ±5V 0 ±5mV
V
S
= ±7.5V 4 mV
Output DC Offset Drift V
S
= ±2.375V 10 µV/°C
V
S
= ±5V 20 µV/°C
V
S
= ±7.5V 25 µV/°C
Self-Clocking Frequency (f
OSC
) R (Pin 4 to 5) = 20k, C (Pin 5 to GND) = 470pF
V
S
= ±2.375V 99 103 112 kHz
LTC1065C
95 103 112 kHz
LTC1065M 92 100 112 kHz
V
S
= ±5V 100 106 112 kHz
LTC1065C
98 106 114 kHz
LTC1065M 97 105 114 khz
V
S
= ±7.5V 102 106 114 kHz
LTC1065C
101 109 116 kHz
LTC1065M 100 108 116 kHz
External CLK Pin Logic Thresholds V
S
= ±2.375V Min Logical “1” 1.43 V
Max Logical “0” 0.47 V
V
S
= ±5V Min Logical “1” 3 V
Max Logical “0” 1 V
V
S
= ±7.5V Min Logical “1” 4.5 V
Max Logical “0” 1.5 V
Power Supply Current V
S
= ±2.375V, f
CLK
= 500kHz 2.5 4.0 mA
LTC1065C
5.5 mA
LTC1065M 6.0 mA
V
S
= ±5V, f
CLK
= 500kHz 5.5 9 mA
LTC1065C
11 mA
LTC1065M 12 mA
V
S
= ±7.5V, f
CLK
= 500kHz 7.0 12.0 mA
LTC1065C
14.5 mA
LTC1065M 16.0 mA
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at V
S
= ±5V, f
CLK
= 500kHz, f
C
= 5kHz, R
L
= 10k, T
A
= 25°C unless otherwise specified.