MAX7490CEE Maxim Integrated Products, MAX7490CEE Datasheet - Page 4

• Manufacturer Part Number: MAX7490CEE
• Description: Active Filter
• Manufacturer: Maxim Integrated Products

Specifications of MAX7490CEE

• Number Of Channels: 2
• Cutoff Frequency: 40 KHz
• Supply Voltage (max): 5.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 5 V
• Supply Voltage (min): 4.5 V
• Package / Case: QSOP-16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Dual Universal Switched-Capacitor Filters
ELECTRICAL CHARACTERISTICS—MAX7491
(V
GND; 50% duty-cycle clock input; COM = V
(Note 1)
4
FILTER
Center Frequency Range
Clock-to-Center Frequency
Accuracy
Q Accuracy
f
Q Temperature Coefficient
DC Lowpass Gain Accuracy
DC Offset Voltage
(Figure 8)
Crosstalk (Note 2)
COM Voltage Range
Input Resistance at COM
Clock Feedthrough
Noise (Note 3)
Output Voltage Swing
Input Leakage Current at COM
CLOCK
Maximum Clock Frequency
Internal Oscillator Frequency
(Note 4)
Clock Input High
Clock Input Low
Clock Duty Cycle
SHDN AND EXTCLK
Input High
Input Low
Input Leakage Current
DD
O
Temperature Coefficient
_______________________________________________________________________________________
= V
EXTCLK
PARAMETER
= +3V; f
CLK
= 625kHz; 10kΩ || 50pF load to V
SYMBOL
f
CLK
V
R
V
V
V
f
f
OSC
COM
CLK
V
COM
V
OS1
OS2
OS3
f
O
IH
IL
/f
O
DD
/2; T
Mode 1
Mode 1, R1 = R3 = 50kΩ , R2 = 10kΩ,
Q = 5, deviation from 100:1
Mode 1, R1 = R3 = 50kΩ, R2 = 10kΩ,
Q = 5
Mode 1, R1 = R2 = 10kΩ
DC offset of input inverter
DC offset of 1st integrator
DC offset of 2nd integrator
f
Input: COM externally driven
Output: COM internally driven
Up to 5th harmonic of f
Mode 1, R1= R2 = R3 = 10kΩ,
LP output, Q = 1
SHDN = GND, V
EXTCLK = GND, C
EXTCLK = GND, C
V
IN
INPUT
= 10kHz
A
= T
= 0 to V
MIN
to T
CONDITIONS
DD
COM
DD
MAX
OSC
OSC
/2 at LP_, BP_, and N_/HP_; V
= 0 to V
. Typical values are at T
CLK
= 1000pF
= 100pF
DD
V
V
A
DD
DD
V
V
- 0.1
- 0.1
MIN
DD
DD
0.2
= +25°C, unless otherwise noted.)
60
95
SHDN
- 0.5
- 0.5
/2
/2
0.001 to
= V
V
V
50 ±5
TYP
±0.2
±0.2
±0.1
±0.1
1.35
±0.4
200
135
DD
DD
-60
40
±1
±5
±3
±4
±4
80
60
4
DD
/2
/2
; 0.1µF from COM to
V
V
V
D D
±12.5
+ 0.1
+ 0.1
MAX
±0.5
±0.7
±10
±10
±15
±25
120
175
DD
DD
0.5
0.5
±2
- 0.2
/2
/2
ppm/°C
ppm/°C
UNITS
μV
μV
MHz
MHz
kHz
kHz
mV
dB
kΩ
μA
μA
%
%
%
%
RMS
RMS
V
V
V
V
V
V