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OPA855-Q1

更新时间： 2024-11-30 02:51:31
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德州仪器 - TI /
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32页 2504K
描述
OPA859-Q1 1.8-GHz Unity-Gain Bandwidth, 3.3-nV/√Hz, FET Input Amplifier

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OPA855-Q1 数据手册

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OPA859-Q1  
SBOSA59 – FEBRUARY 2021  
OPA859-Q1 1.8-GHz Unity-Gain Bandwidth, 3.3-nV/√Hz, FET Input Amplifier  
1 Features  
3 Description  
•
AEC-Q100 Qualified for Automotive Applications:  
– Temperature grade 1: –40°C to +125°C, TA  
High Unity-Gain Bandwidth: 1.8 GHz  
Gain Bandwidth Product: 900 MHz  
Ultra-Low Bias Current MOSFET Inputs: 10 pA  
Low Input Voltage Noise: 3.3 nV/√Hz  
Slew Rate: 1150 V/µs  
Low Input Capacitance:  
– Common-Mode: 0.6 pF  
– Differential: 0.2 pF  
Wide Input Common-Mode Range:  
– 1.4 V from Positive Supply  
The OPA859-Q1 is a wideband, low-noise operational  
amplifier with CMOS inputs for wideband  
transimpedance and voltage amplifier applications.  
When the device is configured as a transimpedance  
amplifier (TIA), the 0.9-GHz gain bandwidth product  
(GBWP) enables high closed-loop bandwidths in low-  
capacitance photodiode applications.  
•
•
•
•
•
•
The graph below shows the bandwidth and noise  
performance of the OPA859-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  
OPA859-Q1 package has a feedback pin (FB) that  
simplifies the feedback network connection between  
the input and the output.  
•
– Includes Negative Supply  
•
•
•
•
•
2.5 VPP Output Swing in TIA Configuration  
Supply Voltage Range: 3.3 V to 5.25 V  
Quiescent Current: 20.5 mA  
Package: 8-Pin WSON  
Temperature Range: –40°C to +125°C  
The OPA859-Q1 is optimized to operate in optical  
time-of-flight (ToF) systems where the OPA859-Q1 is  
used with time-to-digital converters, such as the  
TDC7201. Use the OPA859-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)  
OPA859-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  
225  
150  
135  
120  
105  
90  
f-3dB, RF = 2 kW  
200  
f-3dB, RF = 5 kW  
RF  
VBIAS  
IRN, RF = 2 kW  
IRN, RF = 5 kW  
Rx  
Lens  
175  
5 V  
TLV3501  
+
œ
150  
125  
100  
75  
3.5 V  
+
OPA859  
Stop 2  
Start 2  
VREF  
œ
CF  
RF  
75  
TDC7201  
(Time-to-  
Digital  
VBIAS  
60  
5 V  
Converter)  
TLV3501  
+
œ
50  
45  
3.5 V  
+
OPA859  
Stop 1  
Start 1  
VREF  
œ
25  
30  
0
15  
0
2
4
6
8
10  
12  
14  
Photodiode capacitance (pF)  
16  
18  
20  
Tx  
Lens  
D409  
MSP430  
ꢀController  
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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