OPA65250,OPA652K5

Part No.:
OPA65250,OPA652K5
Download:
Download
Description:
Wideband, Unity-Gain Stable, FET-Input OPERATIONAL AMPLIFIER
File Size:
814 K
Page:
25 Pages
Logo:
Maker:
TI [ TEXAS INSTRUMENTS ]
PCB Prototype

July 19, 2018:

PBL38610-2

PBYR1035B

PC28F512P30BF

PD0120.702

PE-53682NL

PFP-50N

PMM5303

POE60F-12L

PQ015EN01ZPH

PQ1K213M2ZP

PR2FPXX

PS12064DZS-F

PCB Datasheet:1PCB Datasheet:1
OPA656
OPA
656
www.ti.com
SBOS196G – DECEMBER 2001 – REVISED NOVEMBER 2008
Wideband, Unity-Gain Stable, FET-Input
OPERATIONAL AMPLIFIER
FEATURES
q
500MHz UNITY-GAIN BANDWIDTH
q
LOW INPUT BIAS CURRENT: 2pA
q
LOW OFFSET AND DRIFT:
±
0.25mV,
±
2
µ
V/
°
C
q
LOW DISTORTION: 74dB SFDR at 5MHz
q
HIGH OUTPUT CURRENT: 70mA
q
LOW INPUT VOLTAGE NOISE: 7nV/
Hz
DESCRIPTION
The OPA656 combines a very wideband, unity-gain stable,
voltage-feedback op amp with a FET-input stage to offer an
ultra high dynamic-range amplifier for ADC (Analog-to-Digital
Converter) buffering and transimpedance applications. Extremely
low DC errors give good precision in optical applications.
The high unity-gain stable bandwidth and JFET input allows
exceptional performance in high-speed, low-noise integrators.
The high input impedance and low bias current provided by
the FET input is supported by the ultra-low 7nV/√Hz input
voltage noise to achieve a very low integrated noise in
wideband photodiode transimpedance applications.
Broad transimpedance bandwidths are achievable given the
OPA656’s high 230MHz gain bandwidth product. As shown
below, a –3dB bandwidth of 1MHz is provided even for a high
1MΩ transimpedance gain from a 47pF source capacitance.
APPLICATIONS
q
WIDEBAND PHOTODIODE AMPLIFIERS
q
q
q
q
q
SAMPLE-AND-HOLD BUFFERS
CCD OUTPUT BUFFERS
ADC INPUT BUFFERS
WIDEBAND PRECISION AMPLIFIERS
TEST AND MEASUREMENT FRONT ENDS
RELATED OPERATIONAL AMPLIFIER PRODUCTS
SLEW VOLTAGE
V
S
BW RATE NOISE
(V) (MHz) (V/
µ
S) (nV/
HZ) AMPLIFIER DESCRIPTION
300
290
700
55
100
5.8
6
4.8
4.5
5.4
Unity-Gain Stable CMOS
Unity-Gain Stable FET-Input
Gain of +7 Stable FET-Input
Unity-Gain Stable FET-Input
Unity-Gain Stable FET-Input
DEVICE
1pF
499kΩ
499kΩ
OPA355 +5 200
OPA655
±5
400
OPA657
±5
1600
OPA627
±15
16
THS4601
±15
180
1MΩ TRANSIMPEDANCE BANDWIDTH
130
Transimpedance Gain (dB)
1MHz Bandwidth
λ
(47pF)
OPA656
V
O
120
110
100
–V
b
90
Wideband Photodiode Transimpedance Amplifier
80
10kHz
100kHz
Frequency
1MHz
5MHz
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright © 2001-2008, Texas Instruments Incorporated
www.ti.com