Features: Offset voltage: 2.5 mV maximum
Single-supply operation: 2.7 V to 5.5 V
Low noise: 8 nV/Hz
Wide bandwidth: 24 MHz
Slew rate: 12 V/s
Short-circuit output current: 150 mA
No phase reversal
Low input bias current: 1 pA
Low supply current: 2 mA maximum
Unity gain stableApplicationBattery-powered instruments
Multipole filters
ADC front ends
Sensors
Barcode scanners
ASIC input or output amplifiers
Audio amplifiers
Photodiode amplifiers
Datapath/mux/switch controlPinout
Specifications
| -3dB Bandwidth |
24MHz |
| Slew Rate |
11V/s |
| Vos |
600V |
| Ib |
0.3pA |
| Input Noise (nV/rtHz) |
6nV/rtHz |
| Vcc-Vee Supply (V) |
2.7 to 5.5 |
| Iq per Amplifier (max) |
2mA |
| # OpAmps per Pkg |
2 |
| Operating Temp Range |
-40 to +125 |
| Packages |
SOIC,SOP |
Supply Voltage ...................................................6 V
Input Voltage..........................................GND to VDD
Differential Input Voltage.................................±3 V
Output Short Circuit to GND.......................Indefinite
Storage Temperature Range..............65 to +150
Operating Temperature Range........−40 to +125
Lead Temperature (Soldering 60 sec).............300
Junction Temperature......................................150
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe AD8646 is a dual, rail-to-rail, input and output, single-supply amplifier featuring low offset voltage, wide signal bandwidth, low input voltage, and low current noise.
The combination of 24 MHz bandwidth, low offset, low noise, and very low input bias current makes these amplifiers AD8646 useful in a wide variety of applications. Filters, integrators, photodiode amplifiers, and high impedance sensors all benefit from the combination of performance features. AC applications benefit from the wide bandwidth and low distortion. This amplifier offers high output drive capability, which is excellent for audio line drivers and other low impedance applications.
Applications include portable and low powered instrumenta-tion, audio amplification for portable devices, portable phone headsets, barcode scanners, and multipole filters. The ability to swing rail to rail at both the input and output enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in single-supply systems.
AD8646 Data Sheet
