3

LTC1067/LTC1067-50

ELECTRICAL CHARACTERISTICS

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Q Accuracy

VS = 3V, fCLK = 250kHz, Q = 5

q

±0.5

±2%

VS = 4.75V, fCLK = 250kHz, Q = 5

q

±0.5

±2%

VS = ±5V, fCLK = 500kHz, Q = 5

q

±0.5

±2%

fO Temperature Coefficient

±1

ppm/

°C

Q Temperature Coefficient

±5

ppm/

°C

DC Offset Voltage (See Table 2)

VOS1 (DC Offset of Input Inverter)

q

±3

±18

mV

VOS2 (DC Offset of First Integrator)

q

±4

±22

mV

VOS3 (DC Offset of Second Integrator)

q

±4

±22

mV

Clock Feedthrough

150

µVRMS

Maximum Clock Frequency

Q < 2.5, VS = ±5V

2.0

MHz

Power Supply Current

VS = 3V, fCLK = 250kHz

q

2.50

4.5

mA

VS = 4.75V, fCLK = 250kHz

q

3.00

5.5

mA

VS = ±5V, fCLK = 500kHz

q

4.35

7.5

mA

LTC1067 (complete filter) VS = 4.75V, fCLK = 250kHz, TA = 25°C, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Center Frequency Range, fO (Note 1)

0.001 to 40

kHz

Input Frequency Range

0 to 1

MHz

Clock-to-Center Frequency, fCLK/fO

VS = 3V, fCLK = 125kHz, Mode 1, fO = 2.5kHz, Q = 5

50:1

±0.2

%

R1 = R3 = 49.9k, R2 = 10k

q

±0.75

%

VS = 4.75V, fCLK = 125kHz, Mode 1, fO = 2.5kHz, Q = 5

50:1

±0.2

%

R1 = R3 = 49.9k, R2 = 10k

q

±0.75

%

VS = ±5V, fCLK = 250kHz, Mode 1, fO = 5kHz, Q = 5

50:1

±0.3

%

R1 = R3 = 49.9k, R2 = 10k

q

±0.75

%

Clock-to-Center Frequency Ratio,

VS = 3V, fCLK = 125kHz, Q = 5

q

±0.2

±0.55

%

Side-to-Side Matching

VS = 4.75V, fCLK = 125kHz, Q = 5

q

±0.2

±0.55

%

VS = ±5V, fCLK = 250kHz, Q = 5

q

±0.2

±0.55

%

Q Accuracy

VS = 3V, fCLK = 125kHz, Q = 5

q

±0.5

±2%

VS = 4.75V, fCLK = 125kHz, Q = 5

q

±0.5

±2%

VS = ±5V, fCLK = 250kHz, Q = 5

q

±0.5

±2%

LTC1067-50 (internal op amps) VS = 4.75V, TA = 25°C, unless otherwise noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Operating Supply Range

2.7

11

V

Positive Output Voltage Swing

VS = 3V, RL = 10k

q

2.65

2.80

V

VS = 4.75V, RL = 10k

q

4.25

4.50

V

VS = ±5V, RL = 10k

q

4.15

4.50

V

Negative Output Voltage Swing

VS = 3V, RL = 10k

q

0.020

0.200

V

VS = 4.75V, RL = 10k

q

0.025

0.225

V

VS = ±5V, RL = 10k

q

– 4.96

– 4.80

V

Output Short-Circuit Current

VS = 3V

16/0.6

mA

(Source/Sink)

VS = 4.75V

33/1.2

mA

VS = ±5V

70/5.7

mA

DC Open-Loop Gain

RL = 10k

90

dB

GBW Product

RL = 10k

1.9

MHz

Slew Rate

RL = 10k

0.8

V/

µs

LTC1067-50 (complete filter) VS = 4.75V, fCLK = 125kHz, TA = 25°C, unless otherwise noted.