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OPA855Q1DSGR

更新时间： 2024-11-05 02:52:19
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德州仪器 - TI /
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29页 1539K
描述
8-GHz Gain Bandwidth Product, Gain of 7-V/V Stable, Bipolar Input Amplifier

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OPA855Q1DSGR 数据手册

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OPA855-Q1  
SBOSA57 – FEBRUARY 2021  
8-GHz Gain Bandwidth Product, Gain of 7-V/V Stable, Bipolar Input Amplifier  
1 Features  
3 Description  
•
AEC-Q100 Qualified for Automotive Applications:  
– Temperature grade 1: –40°C to +125°C, TA  
High Gain Bandwidth Product: 8 GHz  
Decompensated, Gain ≥ 7 V/V (Stable)  
Low Input Voltage Noise: 0.98 nV/√Hz  
Slew Rate: 2750 V/µs  
The OPA855-Q1 is a wideband, low-noise operational  
amplifier with bipolar inputs for wideband  
transimpedance and voltage amplifier applications.  
When the device is configured as a transimpedance  
amplifier (TIA), the 8-GHz gain bandwidth product  
(GBWP) enables high closed-loop bandwidths at  
transimpedance gains of up to tens of kΩs.  
•
•
•
•
•
Low Input Capacitance:  
The graph below shows the bandwidth and noise  
performance of the OPA855-Q1 as a function of the  
photodiode capacitance when the amplifier is  
configured as a TIA. The total noise is calculated  
along a bandwidth range extending from DC to the  
calculated frequency (f) on the left scale. The  
OPA855-Q1 package has a feedback pin (FB) that  
simplifies the feedback network connection between  
the input and the output.  
– Common-Mode: 0.6 pF  
– Differential: 0.2 pF  
•
Wide Input Common-Mode Range:  
– 0.4 V from Positive Supply  
– 1.1 V from Negative Supply  
3 VPP Total Output Swing  
Supply Voltage Range: 3.3 V to 5.25 V  
Quiescent Current: 17.8 mA  
•
•
•
•
•
Package: 8-Pin WSON  
Temperature Range: –40°C to +125°C  
The OPA855-Q1 is optimized to operate in optical  
time-of-flight (ToF) systems where the OPA855-Q1 is  
used with time-to-digital converters, such as the  
TDC7201. Use the OPA855-Q1 to drive a high-speed  
analog-to-digital converter (ADC) in high-resolution  
LIDAR systems with a differential output amplifier,  
such as the THS4541-Q1.  
2 Applications  
•
•
•
•
•
•
•
•
•
•
Automotive LIDAR  
Time of flight (ToF) Camera  
Optical Time Domain Reflectometry (OTDR)  
3D Scanner  
Laser Distance Measurement  
Solid-State Scanning LIDAR  
Optical ToF Position Sensor  
Drone Vision  
Device Information  
PART NUMBER(1)  
PACKAGE  
BODY SIZE (NOM)  
OPA855-Q1  
WSON (8)  
2.00 mm × 2.00 mm  
(1) For all available packages, see the package option  
addendum at the end of the data sheet.  
Silicon Photomultiplier (SiPM) Buffer Amplifier  
Photomultiplier Tube Post Amplifier  
CF  
450  
160  
140  
120  
100  
80  
f-3dB, RF = 6 kW  
f-3dB, RF = 12 kW  
RF  
400  
VBIAS  
IRN, RF = 6 kW  
IRN, RF = 12 kW  
Rx  
Lens  
5 V  
TLV3501  
+
350  
œ
+
OPA855  
Stop 2  
Start 2  
3.8 V  
300  
250  
200  
150  
100  
50  
VREF  
œ
CF  
RF  
TDC7201  
(Time-to-  
Digital  
VBIAS  
60  
5 V  
Converter)  
TLV3501  
+
œ
40  
+
OPA855  
Stop 1  
Start 1  
3.8 V  
VREF  
œ
20  
0
0
2
4
6
8
10  
12  
14  
Photodiode capacitance (pF)  
16  
18  
20  
Tx  
Lens  
MSP430  
ꢀController  
D609  
Pulsed Laser  
Diode  
Photodiode Capacitance vs Bandwidth and Noise  
High-Speed Time-of-Flight Receiver  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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