CS3012-ISZR Cirrus Logic Inc, CS3012-ISZR Datasheet - Page 14

• Manufacturer Part Number: CS3012-ISZR
• Description: IC Dual Power Optimized Op Amp
• Manufacturer: Cirrus Logic Inc

Specifications of CS3012-ISZR

• Amplifier Type: Instrumentation
• Number Of Circuits: 2
• Output Type: Rail-to-Rail
• Slew Rate: 2 V/µs
• Current - Input Bias: 50pA
• Voltage - Input Offset: 10µV
• Current - Supply: 1.7mA
• 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
• 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

3.4
The CS3011 and CS3012 amplifiers are optimum
for applications that require high gain and low drift.
Figure 18
gain of 650 V/V. The thermopile outputs only a few
millivolts when subjected to infrared radiation. The
amplifier is compensated and bandlimited by C1 in
combination with R2.
14
+ 5 V
1 m V /V
V A
-
Applications
illustrates a thermopile amp lifier with a
3 5 0
Ω
+
Figure 19. Load Cell Bridge Amplifier and A/D Converter
Thermopile ST60
Dexter Research
Figure 18. Thermopile Amplifier with a Gain of 650 V/V
+
-
-
+
1 4 0 k
1 4 0 k
3 6 5
0 .1
x 7 6 8
Ω
Ω
Ω
μ
F
100
R1
0 .2 2
0 .0 4 7
0 .2 2
1 0 0
1 0 0
Figure 19 on page 14
amplifier with a gain of 768 V/V. The load cell is ex-
cited with +5 V and has a 1 mV/V sensitivity. Its full
scale output signal is am plified to produce a f ully
differential ± 3.8 V into the CS5510/ 1 2 A/D convert-
er. This circuit operates from +5 V.
μ
μ
F
μ
F
Ω
Ω
F
V R E F
A IN +
A IN 1
CS3011
C S 5 5 1 0 /1 2
S C L K = 1 0 k H z t o 1 0 0 k H z
+ 5 V
V +
V -
0.015μF
64.9k
R2
C1
( 3 2 . 7 6 8 n o m i n a l
S C L K = 1 0 k H z to 1 0 0
S C L K
S D O
C S
( 3 2 .7 6 8
illustrates a load cell bridg e
)
+ 5 V
)
C o u n te r /T im e r
CS3012
CS3011
μ
DS597F6