CS3001-ISZR Cirrus Logic Inc, CS3001-ISZR Datasheet - Page 8

• Manufacturer Part Number: CS3001-ISZR
• Description: IC OPAMP SGL PREC LOW-V 8-SOIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS3001-ISZR

• Amplifier Type: Instrumentation
• Number Of Circuits: 1
• Output Type: Rail-to-Rail
• Slew Rate: 5 V/µs
• Current - Input Bias: 100pA
• Voltage - Input Offset: 10µV
• Current - Supply: 2.1mA
• 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
• 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: -

3. CS3001/CS3002 OVERVIEW
The CS3001/CS3002 amplifiers are designed for
precision measurement of signals from DC to
2 kHz when operating from a supply voltage of
+2.7 V to +6.7 V (± 1.35 to ± 3.35 V). The ampli-
fiers are designed with a patented architecture that
utilizes multiple amplifier stages to yield very high
open loop gain at frequencies of 10 kHz and below.
The amplifiers yield low noise and low offset drift
while consuming relatively low supply current. An
increase in noise floor above 2 kHz is the result of
intermediate stages of the amplifier being operated
at very low currents. The amplifiers are intended
for amplifying small signals with large gains in ap-
plications where the output of the amplifier can be
band-limited to frequencies below 2 kHz.
8
Figure 15. CS3001/CS3002 Open-loop Gain and Phase Response
-135
-180
-225
-270
-315
-360
100
-45
-90
80
60
40
20
0
10K
-100 dB/ dec
100K
3.1
Figure 15
response of the CS3001/CS3002. The gain slope of
the amplifier is about –100 dB/decade between
500 Hz and 60 kHz and transitions to –20 dB/de-
cade between 60 kHz and its unity gain crossover
frequency at about 4.8 MHz. Phase margin at unity
gain is about 70 degrees; gain margin is about
20 dB.
-20 dB/ dec
1M
Open-loop Gain and Phase
Response
illustrates the open loop gain and phase
10M
CS3001
CS3002
DS490F9