CS3002-ISZ Cirrus Logic Inc, CS3002-ISZ Datasheet - Page 10

• Manufacturer Part Number: CS3002-ISZ
• Description: IC OPAMP DUAL PREC LV 8-SOIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS3002-ISZ

• Slew Rate: 5 V/µs
• Package / Case: 8-SOIC
• Amplifier Type: Instrumentation
• Number Of Circuits: 2
• Output Type: Rail-to-Rail
• Current - Input Bias: 100pA
• Voltage - Input Offset: 10µV
• Current - Supply: 3.6mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 6.7 V, ±1.35 V ~ 3.35 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Channels: 2
• Common Mode Rejection Ratio (min): 115 dB
• Input Offset Voltage: 0.01 mV
• Input Bias Current (max): 1000 pA
• Operating Supply Voltage: 2.7 V to 6.7 V
• Supply Current: 3.6 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Dual Supply Voltage: +/- 3 V
• Maximum Dual Supply Voltage: +/- 3.35 V
• Minimum Dual Supply Voltage: +/- 1.35 V
• Mounting Style: SMD/SMT
• Shutdown: No
• Supply Voltage (max): 6.7 V
• Supply Voltage (min): 2.7 V
• Voltage Gain Db: 300 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1495 - BOARD EVAL OPAMP FOR CS30XX
• Current - Output / Channel: -
• -3db Bandwidth: -
• Gain Bandwidth Product: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1141-5

The feedback capacitor C2 is required for closed-
loop gains greater than 50 V/V. The capacitor in-
This indicates that the separation of the pole and
the zero is governed by the closed loop gain. It is
required that the zero falls on the steep slope
(–100 dB/decade) of the loop gain plot so that there
10
Vin
R1
Figure 17. Non-inverting Gain Configuration with Compensation
P
Z
Z
1
1
1
=
=
=
------------------------------------ -
2π R
-----------------------------------
2π A R
------------------------ -
2π R
C
(
(
C
(
in
in
1
1
50 pF
50 pF
2
×
1
1
||
)C
R
T
2
1
2
)C
)C
=
2
2
C2
R2
–
---------------------- - A
≅




1
1
------------------------ -
2π R
+
+
(
---- -
p
where
---- -
z
s
s
1
1
1


1


troduces a pole and a zero in the loop gain transfer
function,
C
is some gain higher than 0 dB (typically 20 dB) at
the hand-over frequency (the frequency at which
the slope changes from – 100 dB/decade to
–20 dB/decade).
2
ol
)
Choose C2 so that R2 • C2 ≥
Vo
for
A
=
R
----- -
R
2
1
R
2
»
R
1
R 1 • C
?
in
CS3001
CS3002
DS490F9