Rainbow Electronics MAX7480 - Manual (Page 2)

MAX7480
8th-Order, Lowpass, Butterworth,
Switched-Capacitor Filter
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V DD = +5V, filter output measured at OUT, 10k
Ω
|| 50pF load to GND at OUT, OS = COM, 0.1µF from COM to GND, SHDN =
V DD , f CLK = 100kHz, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V DD to GND ..............................................................-0.3V to +6V
IN, OUT, COM, OS, CLK ............................-0.3V to (V
DD
+ 0.3V)
SHDN........................................................................-0.3V to +6V
OUT Short-Circuit Duration...................................................1sec
Continuous Power Dissipation (T
A = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
8-Pin DIP (derate 9.09mW/°C above +70°C) ...............727mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
C OSC = 1000pF (Note 4)
V OS = 0 to (V DD - 1V) (Note 3)
SHDN = GND, V
COM = 0 to V DD
(Note 1)
Input, COM externally driven
f
IN
= 200Hz, V
IN
= 4Vp-p,
measurement bandwidth = 22kHz
V
IN
= V
COM
= V
DD
/ 2
V COM = V DD / 2 (Note 2)
CONDITIONS
40 53 67 f OSC Internal Oscillator Frequency
±0.1 ±10 Input Leakage Current at OS
±0.1 ±10 Input Leakage Current at COM
50 500 C L
10 1 R L Resistive Output Load Drive
10 Clock Feedthrough
75 125 R COM Input Resistance at COM
100:1 f CLK / f C Clock-to-Corner Ratio
0.001 to 2 f C Corner Frequency
V COM
1 A OS OS Voltage Gain to OUT
-73 THD+N
Total Harmonic Distortion
plus Noise
10 Clock-to-Corner Tempco
0.25 V DD - 0.25 Output Voltage Range
±5 ±25 V OFFSET Output Offset Voltage
-0.1 0.15 0.3
DC Insertion Gain with
Output Offset Removed
MIN TYP MAX SYMBOL PARAMETER
V CLK = 0 or 5V
0.5 V IL Clock Input Low
V DD - 0.5 V IH Clock Input High
±24 ±40 I CLK Clock Input Current
V
V
µA
kHz
µA
µA
pF
k
Ω
mVp-p
k
Ω
V
V/ V
dB
dB
mV
V
ppm/°C
kHz
UNITS
Maximum Capacitive Load at
OUT
COM Voltage Range
V DD / 2 V DD / 2 V DD / 2
- 0.5 + 0.5
V
COM
±0.1 V
OS
Input Voltage Range at OS V
V DD / 2 V DD / 2 V DD / 2
- 0.2 + 0.2
FILTER CHARACTERISTICS
CLOCK
Output, COM internally biased