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The ADA4940-1 / ADA4940-2 are low noise, low distortion differential amplifiers with very low power consumption. They are an ideal choice for driving low power, high resolution, high performance SAR and sigma-delta (Σ-Δ) analog-to-digital converters (ADCs) with resolutions up to 18 bits from dc to 1 MHz on only 1.25 mA of quiescent current. The adjustable level of the output common-mode voltage allows the ADA4940-1/ ADA4940-2 to match the input common-mode voltage of multiple ADCs. The internal common-mode feedback loop provides exceptional output balance, as well as suppression of even-order harmonic distortion products. With the ADA4940-1 / ADA4940-2, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier. The ADA4940-1 / ADA4940-2 are fabricated using Analog Devices, Inc., complementary bipolar process, enabling them to achieve very low levels of distortion with an input voltage noise of only 3.9 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4940-1 / ADA4940-2 make them well suited for a variety of data acquisition and signal processing applications. The ADA4940-1 is available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP. The ADA4940-2 is available in a Pb-free, 4 mm × 4 mm, 24-lead LFCSP. The pinout is optimized to facilitate printed circuit board (PCB) layout and minimize distortion. The ADA4940-1 / ADA4940-2 are specified to operate over the −40°C to +125°C temperature range. Applications Low power ADC drivers Single-ended-to-differential converters Differential buffers Line drivers Medical Imaging Industrial Process Control Portable Electronics
Количество в упаковке | 1 |
Корпус | SOIC-8 |
Вес | 0.166 г |
rohs_status | Compliant |
reach_svhc_compliance | No SVHC |
lead_free_status | Contains Lead |
mounting_style | Surface Mount |
packaging | Tube |
case_package | SOIC |
bandwidth | 260 MHz |
slew_rate | 95.0 V/μs |
supply_current | 1.18 mA |
lifecycle_status | Active |
pin_count | 8 |
No. of Amplifiers | 1Amplifiers |
Input Offset Voltage | 60µV |
Gain dB Max | - |
Bandwidth | 260MHz |
Operating Temperature Min | -40°C |
Operating Temperature Max | 125°C |
Amplifier Case Style | SOIC |
No. of Pins | 8Pins |
Supply Voltage Range | 3V to 7V |
Slew Rate | 95V/µs |
Packaging | Each |
Product Range | ADA4940-1 Series |
Automotive Qualification Standard | - |
RoHS Phthalates Compliant | Yes |
MSL | MSL 1 - Unlimited |
SVHC | No SVHC (07-Jul-2017) |
Amplifer Supply Voltage | 3V to 7V |
Operating Temperature Range | -40°C to +125°C |
Supply Current | 1.25mA |
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