ISL55001IBZ Intersil, ISL55001IBZ Datasheet - Page 9

• Manufacturer Part Number: ISL55001IBZ
• Description: IC OPANP MONO 220MHZ 8-SOIC
• Manufacturer: Intersil

Specifications of ISL55001IBZ

• Amplifier Type: Voltage Feedback
• Number Of Circuits: 1
• Slew Rate: 280 V/µs
• Gain Bandwidth Product: 70MHz
• -3db Bandwidth: 220MHz
• Current - Input Bias: 1.72µA
• Voltage - Input Offset: 60µV
• Current - Supply: 9mA
• Current - Output / Channel: 145mA
• Voltage - Supply, Single/dual (±): 4.5 V ~ 30 V, ±2.25 V ~ 15 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Bandwidth: 70 MHz
• Common Mode Rejection Ratio: 90
• Current, Input Bias: 1.72 μA
• Current, Input Offset: 0.27 μA
• Current, Output: 145 mA
• Current, Supply: 8.3 mA
• Number Of Amplifiers: Single
• Package Type: SO-8
• Resistance, Input: 2.75 Megohms
• Temperature, Operating, Range: -40 to +85 °C
• Voltage, Gain: 17 kV/V
• Voltage, Input: ±15 V
• Voltage, Noise: 12 nV/sqrt Hz
• Voltage, Offset: 0.06 mV
• Voltage, Output, High: 13.5 V
• Voltage, Output, Low: -12.8 V
• Voltage, Supply: 33 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PD
For sinking use Equation 3:
Where:
• V
• V
• I
• V
• R
• I
• n = number of amplifiers (n = 1 for ISL55001)
By setting the two PD
equal to each other, we can solve the output current and
R
Power Supply Bypassing Printed Circuit
Board Layout
As with any high frequency device, a good printed circuit
board layout is necessary for optimum performance.
Lead lengths should be as short as possible. The power
supply pin must be well bypassed to reduce the risk of
oscillation. For normal single supply operation, where the
V
tantalum capacitor in parallel with a 0.1µF ceramic
LOAD
S
MAX
- pin is connected to the ground plane, a single 4.7µF
SMAX
LOAD
S+
S-
OUT
LOAD
= Negative supply voltage
= Positive supply voltage
=
to avoid the device overheat.
V
= Average output voltage of the application
= Load current
1
(V
= Maximum quiescent supply current
= Load resistance tied to ground
S
+
–
1kΩ
R
V
1
S
- )
×
MAX
I
SMAX
1kΩ C
R
2
1nF
equations (Equations 1, 2 or 3)
9
+
2
1nF
i
C
∑
=
n
1kΩ
1
R
1
(
A
V
OUTi
FIGURE 25. SALLEN-KEY LOW PASS FILTER
1kΩ
R
+
B
–
-
V
S
V+
V-
-
1nF
1nF
V
5V
V
5V
)
C
C
×
2
3
5
5
-------------------- -
R
V
LOADi
OUTi
(EQ. 3)
V
ISL55001
OUT
R
1kΩ
7
capacitor from V
capacitor combination should be placed at each supply
pin to ground if split supplies are to be used. In this case,
the V
Printed Circuit Board Layout
For good AC performance, parasitic capacitance should
be kept to minimum. Use of wire wound resistors should
be avoided because of their additional series inductance.
Use of sockets should also be avoided if possible. Sockets
add parasitic inductance and capacitance that can result
in compromised performance. Minimizing parasitic
capacitance at the amplifier's inverting input pin is very
important. The feedback resistor should be placed very
close to the inverting input pin. Strip line design
techniques are recommended for the signal traces.
Application Circuits
Sallen-Key Low Pass Filter
A common and easy to implement filter taking advantage
of the wide bandwidth, low offset and low power
demands of the ISL55001. A derivation of the transfer
function is provided for convenience (see Figure 25).
Sallen-Key High Pass Filter
Again this useful filter benefits from the characteristics of
the ISL55001. The transfer function is very similar to the
low pass so only the results are presented (see
Figure 26).
S
Q
Q
Holp
wo
Holp
wo
- pin becomes the negative supply rail.
=
=
=
=
1 (
4
=
=
RC
−
−
2
R
2
K
4
K
S
K
+ to GND will suffice. This same
−
K
1
)
C
1
K
1
R
R
R
2
2
1
C
C
C
1
2
2
+
1
R
R
1
2
C
C
2
1
+
November 3, 2009
R
R
2
1
FN6200.3
C
C
1
2