Product Summary

The OPA657U combines a high gain bandwidth, low distor-tion, voltage-feedback op amp with a low voltage noise JFET-input stage to offer a very high dynamic range amplifier for high precision ADC (Analog-to-Digital Converter) driving or wideband transimpedance applications. Photodiode applications of the OPA657U will see improved noise and bandwidth using this decompensated, high gain bandwidth amplifier. Very low level signals can be significantly amplified in a single OPA657U gain stage with exceptional bandwidth and accuracy. Having a high 1.6GHz gain bandwidth product will give > 10MHz signal bandwidths up to gains of 160V/V (44dB). The very low input bias current and capacitance of the OPA657U will support this performance even for relatively high source impedances.

Parametrics

OPA657U absolute maximum ratings: (1)Supply Voltage: ±6.5V; (2)Internal Power Dissipation: See Thermal Characteristics; (3)Differential Input Voltage: ±VS; (4)Input Voltage Range: ±VS; (5)Storage Temperature Range: –40℃ to +125℃; (6)Lead Temperature: +260℃; (7)Junction Temperature (TJ ): +175℃; (8)ESD Rating (Human Body Model): 2000V; (Machine Model): 200V.

Features

OPA657U features: (1)high gain bandwidth product: 1.6GHz; (2)high bandwidth 275MHz (G = +10); (3)low input offset voltage: ±0.25mV; (4)low input bias current: 2pA; (5)low input voltage noise: 4.8nV/ Hz; (6)high output current: 70mA; (7)fast overdrive recovery.

Diagrams

OPA657U pin configurations

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
OPA657U
OPA657U
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp
Data Sheet
0-1: $6.82
1-25: $6.31
25-100: $5.80
100-250: $5.29
OPA657U/2K5
OPA657U/2K5
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp
Data Sheet
0-1854: $3.83
1854-2000: $3.69
2000-2500: $3.69
OPA657UBG4
OPA657UBG4
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise Fet -Input Op Amp
Data Sheet
0-1: $6.82
1-25: $6.31
25-100: $5.80
100-250: $5.29
OPA657UB
OPA657UB
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp
Data Sheet
0-1: $6.82
1-25: $6.31
25-100: $5.80
100-250: $5.29
OPA657UG4
OPA657UG4
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp
Data Sheet
0-1: $6.82
1-25: $6.31
25-100: $5.80
100-250: $5.29
OPA657U/2K5G4
OPA657U/2K5G4
Texas Instruments
High Speed Operational Amplifiers 1.6GHz Low Noise FET-Input Op Amp
Data Sheet
0-1854: $3.83
1854-2000: $3.69
2000-2500: $3.69