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RFQ ListingAnalog ICs & Data Converters
The ADA4940-1ACPZ-R7 is the single-channel fully differential amplifier from Analog Devices in a 3mm × 3mm 16-lead LFCSP, pairing 260 MHz of small-signal bandwidth with just 1.25 mA of quiescent current. An internal common-mode feedback loop keeps the two outputs balanced and suppresses even-order harmonics, which is how the device reaches −122 dB THD at 50 kHz while driving precision SAR and sigma-delta converter inputs.
ManufacturerAnalog Devices
Package16-Lead LFCSP (3mm × 3mm w/ EP)
SeriesADA4940
Analog / Signal Chain Specifications
| Parameter | Value / Specification |
|---|---|
| Channels / Configuration | Single fully differential amplifier; differential or single-ended drive |
| Bandwidth | 260 MHz small signal |
| Noise | 3.9 nV/√Hz input voltage noise |
| Harmonic Distortion | −122 dB THD at 50 kHz; −96 dB THD at 1 MHz |
| Maximum Offset Voltage | 0.35 mV |
| Quiescent Current | 1.25 mA |
| Supply Voltage | 3 V to 7 V (LFCSP) |
| Settling Time | 34 ns to 0.1% |
| Output Swing | Rail-to-rail, −VS + 0.1 V to +VS − 0.1 V |
| Output Common-Mode | Adjustable through the VOCM pin |
| Operating Temperature | −40°C to +125°C |
| Package / Case | 16-Lead LFCSP (3mm × 3mm w/ EP) |
Analog Features & Applications
- 260 MHz small signal bandwidth drawn from only 1.25 mA of quiescent current
- Extremely low distortion: −122 dB THD at 50 kHz and −96 dB THD at 1 MHz
- Input voltage noise of 3.9 nV/√Hz with 0.35 mV maximum offset voltage
- Balanced rail-to-rail outputs swinging from −VS + 0.1 V to +VS − 0.1 V
- Output common-mode level adjustable at VOCM to match the converter input
- Settling time to 0.1% of 34 ns on flexible 3 V to 7 V LFCSP supplies
- DISABLE pin cuts consumption further in duty-cycled acquisition channels
- 3mm × 3mm 16-lead LFCSP specified from −40°C to +125°C
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Frequently Asked Questions
Is ADA4940-1ACPZ-R7 available from LimChip?
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