ADA4897-2 1 nV/√Hz, Low Power Operational Amplifier
Applications
The ADA4897-2 is a unity gain stable, low noise, rail-to-rail output, high speed voltage feedback amplifier that has a quiescent current of 3 mA. With the 1/f noise of 2.4 nV/√Hz at 10 Hz and a spurious-free dynamic range of −80 dBc at 2 MHz, the ADA4897-2 is an ideal solution in a variety of applications, including ultrasound, low noise preamplifiers, and drivers of high performance ADCs. Analog Devices, Inc., proprietary next generation SiGe bipolar process and innovative architecture enables such a high performance amplifier.
TheADA4897-2 has 230 MHz bandwidth, 120 V/µs slew rate, and settle to 0.1% in 45 ns. With a wide supply voltage range (3 V to 10 V), the ADA4897-2/ADA4897-1 is an ideal candidates for systems that require high dynamic range, precision, and high speed.
The ADA4897-2 is available in an 10-lead MSOP package and operates over the extended industrial temperature range of −40°C to +125°C.
Features and Benefits- Download ADA4897-2-KGD Data Sheet. Available as Known Good Die and fully guaranteed to data sheet specifications.
- Low wideband noise
1 nV/√Hz
2.8 pA/√Hz - Low 1/f noise
2.4 nV/√Hz @ 10 Hz - Low distortion: −115 dBc @ 100 kHz, VOUT = 2 V p-p
- Low power: 3 mA/amp
- Low input offset voltage: 0.5 mV maximum
- High speed
230 MHz, −3 dB bandwidth (G = +1)
120 V/µs slew rate
45 ns settling time to 0.1% - Rail-to-rail output
- Wide supply range: 3 V to 10 V
- Output disable feature
- Download ADA4897-2-EP Data Sheet (pdf)
- Extended industrial temperature range
(−55°C to +125°C) - Controlled manufacturing baseline
- 1 assembly/test site
- 1 fabrication site
- Enhanced product change notification
- Qualification data available on request
- V62/13614 DSCC Drawing Number
| SPICE ModelsReference Designs |
Data Sheets
Application Notes
User Guides
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| ADA4897-2-KGD Production | CHIPS OR DIE | OTH 396 | -40 to 125C | 0 | 32 | Y |
| ADA4897-2ARMZ Production | 10 ld MSOP | OTH 50 | -40 to 125C | 3.86 | 3.21 | Y |
| ADA4897-2ARMZ-R7 Production | 10 ld MSOP | REEL 1000 | -40 to 125C | 0 | 3.21 | Y |
| ADA4897-2ARMZ-RL Production | 10 ld MSOP | REEL 3000 | -40 to 125C | 0 | 3.21 | Y |
| ADA4897-2TRMZ-EP Production | 10 ld MSOP | OTH 50 | -55 to 125C | 7.72 | 6.42 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-HSAMP-2CPZ-10 | Evaluation Bare Board for 10-Lead LFCSP | 18.25 | Y |
| EVAL-HSAMP-2CPZ-8 | Evaluation Bare Board for 8-Lead LFCSP | 18.25 | Y |
| EVAL-HSAMP-2RMZ-10 | Evaluation Bare Board for 10-lead MSOP Package | 18.25 | Y |
| EVAL-HSAMP-2RMZ-8 | Evaluation Bare Board for 8 Lead MSOP | 18.25 | Y |
| EVAL-HSAMP-2RZ-8 | Evaluation Bare Board for 8 Lead SOIC | 18.25 | Y |
Reference Materials
- Tutorials：MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR
- Tutorials：MT-052: Op Amp Noise Figure: Don't Be Misled
- Tutorials：MT-050: Op Amp Total Output Noise Calculations for Second-Order System
- Tutorials：MT-049: Op Amp Total Output Noise Calculations for Single-Pole System
- Tutorials：MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent...
- Tutorials：MT-047: Op Amp Noise
- Tutorials：MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps
- Tutorials：MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op...
- Tutorials：MT-033: Voltage Feedback Op Amp Gain and Bandwidth
- Tutorials：MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps
- Tutorials：MT-056: High Speed Voltage Feedback Op Amps
- Tutorials：MT-032: Ideal Voltage Feedback (VFB) Op Amp
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