CS3011-ISZ Cirrus Logic Inc, CS3011-ISZ Datasheet - Page 11

• Manufacturer Part Number: CS3011-ISZ
• Description: IC OPAMP SGL PREC LV 8-SOIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS3011-ISZ

• Amplifier Type: Instrumentation
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 2 V/µs
• Current - Input Bias: 50pA
• Voltage - Input Offset: 10µV
• Current - Supply: 900µA
• 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
• Package / Case: 8-SOIC
• Number Of Channels: 1
• Voltage Gain Db: 300 dB
• Common Mode Rejection Ratio (min): 115 dB
• Input Offset Voltage: 0.01 mV
• Operating Supply Voltage: 2.7 V to 6.7 V
• Supply Current: 0.9 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Dual Supply Voltage: +/- 3.35 V
• Minimum Operating Temperature: - 40 C
• For Use With: 598-1495 - BOARD EVAL OPAMP FOR CS30XX
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output / Channel: -
• -3db Bandwidth: -
• Gain Bandwidth Product: -
• Lead Free Status / Rohs Status: Details
• Other names: 598-1142-5

The feedback capacitor C2 is required for closed-
loop gains greater than 50 V/V. Th e capacitor intro-
This indicates that the sep aration of the pole and
the zero is governed by the clo sed loop gain. It is
required that th e ze ro falls o n the steep slo pe
(–100 dB/decade) of the loop ga
DS597F6
Vin
R1
Figure 16. Non-Inverting Gain Configuration with Compensation
P
Z
Z
1
1
1
=
=
=
in plot so
------------------------------------ -
2π R
-----------------------------------
2π A R
------------------------ -
2π R
C
(
(
C
(
in
in
1
1
50 pF
50 pF
2
×
1
1
||
)C
R
T
1
2
2
)C
)C
=
2
2
that
C2
R2
–
---------------------- - A


≅


1
1
------------------------ -
2π R
+
+
(
---- -
p
where
---- -
z
s
s
1
1
1


1


C
duces a pole and a zero in th e loop gain transfer
function.
there is some gain higher than 0 dB (typically 20
dB) at the ha nd-over frequency (the frequ ency 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
CS3012
CS3011
11