parameter：
|
Number of channels(#) |
2 |
|
Total supply voltage (Max) (+5V=5, +/-5V=10) |
5.5 |
|
Total supply voltage (Min) (+5V=5, +/-5V=10) |
2.2 |
|
Vos (offset voltage @ 25 C) (Max) (mV) |
0.060 |
|
GBW (Typ) (MHz) |
40 |
|
Features |
Shutdown, Small Size, Zero Crossover |
|
Slew rate (Typ) (V/us) |
30 |
|
Rail-to-rail |
In, Out |
|
Offset drift (Typ) (uV/C) |
0.15 |
|
Iq per channel (Typ) (mA) |
3.8 |
|
Vn at 1 kHz (Typ) (nV/rtHz) |
9.8 |
|
CMRR (Typ) (dB) |
120 |
|
Rating |
Catalog |
|
Operating temperature range (C) |
-40 to 125 |
|
Input bias current (Max) (pA) |
10 |
|
Output current (Typ) (mA) |
63 |
|
Architecture |
CMOS |
|
THD + N @ 1 kHz (Typ) (%) |
0.00017 |
Package | pin | size：
|
VQFN (RGR) |
20 |
12 mm² 3.5 x 3.5 |
characteristic:
Precision Operational Amplifier with integrated switch for transimpedance applications
High bandwidth: 40MHz
Low offset voltage: 60 µ V (max.)
Very low temperature drift: 1 µ v/ ° C (max.)
Low input bias current: 0.2pa
Rail to rail inputs and outputs
Zero crossing input stage
Low voltage noise: 6.1nv/ √ Hz at 10 kHz
Low current noise: 0.125pa/ √ Hz at 10kHz
Low leakage switch: 10Pa
Swing rate: 30 v/ µ s
Quiescent current: 3.8 Ma per channel
Current in off mode: 30 µ a
Output impedance in off mode: 100g Ω
Single power supply voltage range: 2.2V to 5.5V
Unity gain stabilization
Small package:
20 lead, 3.5mm x 3.5mm vqfn
2.0mm x 2.0mm DSBGA
explain:
Opa3s328 is a precision low voltage CMOS operational amplifier (OP AMP) with integrated switches optimized for flexible transimpedance applications. Low input bias current and low input capacitance allow high frequency transimpedance gain under low photocurrent operation (< 1NA). The integrated switch, low offset and rail to rail output performance of opa3s328 can achieve high accuracy in the range of dozens of current values. Small packages and integrated switches allow selectable transimpedance gain and help reduce the size of space constrained applications.
Opa3s328 adopts zero crossing input technology, which makes the input common mode range flexible and can span the entire power supply voltage range without offset. The device provides enable disable functionality to support portable handheld device applications in testing and measurement. When disabled, the output impedance of the opa3s328 is usually 100g Ω, allowing the use of wired or applications with multiple cross resistance channels.
Picture display:
