Datasheet Texas Instruments OPA657

Manufacturer	Texas Instruments
Series	OPA657

Datasheets

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Packaging

Parametrics

Parameters / Models	OPA657N/250	OPA657N/250G4	OPA657NB/250	OPA657NB/250G4	OPA657U	OPA657U/2K5	OPA657UB	OPA657UBG4	OPA657UG4
2nd Harmonic, dBc	74	74	74	74	74	74	74	74	74
3rd Harmonic, dBc	106	106	106	106	106	106	106	106	106
@ MHz	5	5	5	5	5	5	5	5	5
Acl, min spec gain, V/V	7	7	7	7	7	7	7	7	7
Additional Features	Decompensated	Decompensated	Decompensated	Decompensated	Decompensated	Decompensated	Decompensated	Decompensated	Decompensated
Architecture	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB	FET,Voltage FB
BW @ Acl, MHz	350	350	350	350	350	350	350	350	350
CMRR(Min), dB	83	83	83	83	83	83	83	83	83
CMRR(Typ), dB	89	89	89	89	89	89	89	89	89
GBW(Typ), MHz	1600	1600	1600	1600	1600	1600	1600	1600	1600
Input Bias Current(Max), pA	20	20	20	20	20	20	20	20	20
Iq per channel(Max), mA	16	16	16	16	16	16	16	16	16
Iq per channel(Typ), mA	14	14	14	14	14	14	14	14	14
Number of Channels	1	1	1	1	1	1	1	1	1
Offset Drift(Typ), uV/C	2	2	2	2	2	2	2	2	2
Operating Temperature Range, C	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
Output Current(Typ), mA	70	70	70	70	70	70	70	70	70
Package Group	SOT-23	SOT-23	SOT-23	SOT-23	SOIC	SOIC	SOIC	SOIC	SOIC
Package Size: mm2:W x L, PKG	5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)	5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)	5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)	5SOT-23: 8 mm2: 2.8 x 2.9(SOT-23)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)	8SOIC: 29 mm2: 6 x 4.9(SOIC)
Rail-to-Rail	No	No	No	No	No	No	No	No	No
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Slew Rate(Typ), V/us	700	700	700	700	700	700	700	700	700
Total Supply Voltage(Max), +5V=5, +/-5V=10	12	12	12	12	12	12	12	12	12
Total Supply Voltage(Min), +5V=5, +/-5V=10	8	8	8	8	8	8	8	8	8
Vn at 1kHz(Typ), nV/rtHz	7	7	7	7	7	7	7	7	7
Vn at Flatband(Typ), nV/rtHz	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8
Vos (Offset Voltage @ 25C)(Max), mV	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8	1.8

Eco Plan

Application Notes

• Download
  Transimpedance Considerations for High-Speed Operational Amplifiers
  PDF, 193 Kb, File published: Nov 22, 2009
  Designing high-resolution detection circuits using photodiodes presents considerable challenges because bandwidth, gain, and input-referred noise are coupled together. This application note reviews the basic issues of transimpedance design, provides a set of detailed design equations, explains those equations, and develops an approach to easily compare potential solutions.
• Download
  Using a decompensated op amp for improved performance
  PDF, 352 Kb, File published: Mar 11, 2005
• Download
  Transimpedance Amplifiers (TIA): Choosing the Best Amplifier for the job (Rev. A)
  PDF, 153 Kb, Revision: A, File published: May 16, 2017
  This application note is intended as a guide for the designer looking to amplify the small signal from a photodiode or avalanche diode so that it would be large enough for further processing (e.g. data acquisition) or to trigger some other event in a system. The challenge in doing so, as always, is to not degrade the signal such that it becomes indistinguishable from random noi
• Download
  Voltage Feedback vs. Current Feedback Op Amps
  PDF, 93 Kb, File published: Nov 30, 1998
  This application report contrasts and compares the characteristics and capabilities of voltage and current feedback operational amplifiers. The report also points out the many similarities between the two versions.
• Download
  Designing for low distortion with high-speed op amps
  PDF, 277 Kb, File published: Mar 2, 2005
• Download
  Measuring Board Parasitics in High-Speed Analog Design
  PDF, 134 Kb, File published: Jul 7, 2003
  Successful circuit designs using high-speed amplifiers can depend upon understanding and identifying parasitic PCB components. Simulating a design while including PCB parasitics can protect against unpleasant production surprises. This application report discusses an easy method for measuring parasitic components in a prototype or final PC board design by using a standard oscilloscope and low freq
• Download
  Noise Analysis for High Speed Op Amps (Rev. A)
  PDF, 256 Kb, Revision: A, File published: Jan 17, 2005
  As system bandwidths have increased an accurate estimate of the noise contribution for each element in the signal channel has become increasingly important. Many designers are not however particularly comfortable with the calculations required to predict the total noise for an op amp or in the conversions between the different descriptions of noise. Considerable inconsistency between manufactu

Model Line

Manufacturer's Classification

• Semiconductors> Amplifiers> Operational Amplifiers (Op Amps)> High-Speed Op Amps (>=50MHz)