Datasheet

8th-Order, Lowpass,
Switched-Capacitor Filters
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 5V, V- = -5V, filter output measured at OUT pin, 20kΩ load resistor to ground at OUT and OP OUT, f
CLK
= 100kHz
(MAX291/MAX292) or f
CLK
= 50kHz (MAX295/MAX296), T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
IN = GND
V+ = 5V, V- = -5V, V
CLK
= 0V to 5V
V- = 0V, GND = V±2
V
CLK
= 0V or 5V
T
A
= +25°C, f
CLK
= 100kHz
f
CLK
= 100kHz
C
OSC
= 1000pF
CONDITIONS
mA
15 22
4.750 11.000Single Supply
V±2.375 ±5.500
Supply Voltage
Dual Supply
µA0.05Input Bias Current
V±4Output DC Swing
mV±10 ±50Input Offset Voltage
dB0.15 0 -0.15
DC Insertion Gain Error with
Output Offset Removed
mV±150 ±400
V±4Output DC Swing
Output Offset Voltage
1.0Low
V4.0
Clock Input High
(Note 1)
µA±70 ±120
Internal Oscillator
Current Source/Sink
dB-70
Total Harmonic Distortion
plus Noise
mVp-p6Clock Feedthrough
kHz29 35 43
Internal Oscillator
Frequency
UNITSMIN TYP MAXPARAMETER
V+ = 2.375V, V- = -2.375V, V
CLK
= -2V to 2V 712
Supply Current
CLOCK
UNCOMMITTED OP AMP
POWER REQUIREMENTS
V
V
Typical Operating Characteristics
(V+ = 5V, V- = -5V, T
A
= +25°C, f
CLK
= 100kHz (MAX291/MAX292) or f
CLK
= 50kHz (MAX295/MAX296), unless otherwise noted.)
0.990
1.000
1.020
1.010
1.030
2.0 3.5 4.02.5 3.0 4.5 5.0 5.5
NORMALIZED INTERNAL OSCILLATOR
FREQUENCY vs. SUPPLY VOLTAGE
MAX291/2/5/6-02
SUPPLY VOLTAGE (V)
NORMALIZED OSCILLATOR FREQUENCY
1nF EXTERNAL
CAPACITOR CLK
0
100
50
200
150
300
250
350
450
400
500
0 4682 1012141618
INTERNAL OSCILLATOR PERIOD vs.
CAPACITANCE VALUE
MAX291/2/5/6-01
CAPACITANCE (nF)
OSCILLATOR PERIOD (µs)
0.97
0.94
1.03
1.00
1.06
-60 -20 0 20-40 40 60 80 100 120 140
NORMALIZED INTERNAL OSCILLATOR
FREQUENCY vs. TEMPERATURE
MAX291/2/5/6-03
TEMPERATURE (°C)
NORMALIZED OSCILLATOR FREQUENCY
1nF EXTERNAL
CAPACITOR CLK
Note 1. Guaranteed by design.
MAX291/MAX292/MAX295/MAX296
Maxim Integrated
3