The OPA659 combines a very wideband, unity-gain stable, voltage-feedback operational amplifier with a JFET-input stage to offer an ultra-high dynamic range amplifier for high impedance buffering in data acquisition applications such as oscilloscope front-end amplifiers and machine vision applications such as photodiode transimpedance amplifiers used in wafer inspection.
The wide 650-MHz unity-gain bandwidth is complemented by a very high 2550-V/μs slew rate.
The high input impedance and low bias current provided by the JFET input are supported by the low 8.9-nV/√Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.
Broad transimpedance bandwidths are possible with the high 350-MHz gain bandwidth product of this device.
Where lower speed with lower quiescent current is required, consider the OPA656. Where unity-gain stability is not required, consider the OPA657.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
OPA659 | SOT-23 (5) | 2.90 mm × 1.60 mm |
SON (8) | 3.00 mm × 3.00 mm |
Changes from B Revision (August 2009) to C Revision
Changes from A Revision (March, 2009) to B Revision
Changes from * Revision (December, 2008) to A Revision
DEVICE | VS (V) | BW (MHz) | SLEW RATE (V/μs) | VOLTAGE NOISE (nV/√Hz) | AMPLIFIER DESCRIPTION |
---|---|---|---|---|---|
OPA659 | ±6 | 350 | 2550 | 8.9 | Unity-Gain Stable FET-Input |
OPA656 | ±5 | 230 | 290 | 7 | Unity-Gain Stable FET-Input |
OPA657 | ±5 | 1600 | 700 | 4.8 | Gain of +7 stable FET Input |
LMH6629 | 5 | 4000 | 1600 | 0.69 | Gain of +10 stable Bipolar Input |
THS4631 | ±15 | 210 | 1000 | 7 | Unity-Gain Stable FET-Input |
OPA857 | 5 | 4750 | 220 | — | Programmable Gain (5 kΩ / 20 kΩ) Transimpedance Amplifier |
PIN | TYPE | DESCRIPTION | ||
---|---|---|---|---|
NAME | SOIC | SOT-23 | ||
NC | 1 | — | — | No Connection |
5 | ||||
8 | ||||
VIN– | 2 | 4 | I | Inverting Input |
VIN+ | 3 | 3 | I | Noninverting Input |
VOUT | 6 | 1 | O | Output of amplifier |
–VS | 4 | 2 | POW | Negative Power Supply |
+VS | 7 | 5 | POW | Positive Power Supply |