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LOG200 Datasheet(PDF) 3 Page - Texas Instruments

Part # LOG200
Description  LOG200 Precision, High-Speed Logarithmic Amplifier With Integrated Photodiode Bias
PDF  25 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LOG200 Datasheet(HTML) 3 Page - Texas Instruments

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5 Pin Configuration and Functions
1
I1
12
OUTB
2
VCM
11
OUTA
3
I2
10
REFA
4
IREF
9
REF165
Not to scale
Thermal Pad
Figure 5-1. RGT Package, 16-Pin VQFN (Top View)
Pin Functions
PIN
TYPE
DESCRIPTION
NAME
NO.
+IN
14
Input
Auxiliary op-amp voltage non-inverting input
–IN
13
Input
Auxiliary op-amp voltage inverting input
I1
1
Input
Current input for logarithm numerator
I2
3
Input
Current input for logarithm denominator
IBIAS
15
Output
Photodiode adaptive biasing current output
IREF
4
Output
Reference current output
REFA
10
Input
Logarithmic difference amplifier reference input
OUTA
11
Output
Logarithmic difference amplifier output
OUTB
12
Output
Auxiliary op-amp voltage output
REF165
9
Output
1.65-V voltage reference output
REF25
5
Output
2.5-V voltage reference output
REFGND
6
Power
Voltage reference negative potential
VCM
2
Input
Input common-mode voltage
VCM2
16
Input
Input common-mode voltage. Connect to VCM.
VS+
8
Power
Positive supply voltage
VS–
7
Power
Negative supply voltage
Thermal Pad
PAD
—
Thermal Pad. Connect to VCM to minimize leakage on I1 pin.
www.ti.com
LOG200
SBOSA28 – AUGUST 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: LOG200



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