MAX3806GTC+ Maxim Integrated Products, MAX3806GTC+ Datasheet

IC AMP TRANSIMPEDANCE 12TQFN

MAX3806GTC+

Manufacturer Part Number
MAX3806GTC+
Description
IC AMP TRANSIMPEDANCE 12TQFN
Manufacturer
Maxim Integrated Products
Type
Distance Measuring, Preamplifierr
Datasheet

Specifications of MAX3806GTC+

Input Type
Logic
Output Type
Voltage
Current - Supply
15mA
Mounting Type
Surface Mount
Package / Case
12-TQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-
Lead Free Status / Rohs Status
 Details
The MAX3806 is a high-gain linear preamplifier for dis-
tance measurement applications using a laser beam.
The device operates from a single +5.0V supply and
converts current from an AC-coupled photodiode into a
single-ended voltage signal. The input accepts single
pulses or bursts of pulses with widths down to 30ns.
The amplifier remains linear with input amplitudes from
42nA
load signals as large as 2mA
designed to drive a high-impedance load to deliver the
output-voltage swing at the lowest possible power dis-
sipation. The gain of the preamplifier stage is selected
using the GAIN pin to be 60kΩ or 30kΩ. There is also
an internal 14dB attenuator that is selected using the
ATT pin. The output stage can be disabled (high
impedance).
The device is available in a 3mm x 3mm, 12-pin TQFN
package and operates over the -40°C to +105°C tem-
perature range.
19-4700; Rev 0; 7/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Typical Application Circuits continued at end of data sheet.
P
LIDAR Sensors for Automotive Applications
(ACC, Stop&Go)
Laser Sensors for Portable Distance
Measurement
Laser Sensors for Industrial Applications
(SNR = 3) to 40µA
Receiver for Optical Distance Measurement
________________________________________________________________ Maxim Integrated Products
* L AND C SET THE LOW-FREQUENCY CUTOFF REQUIRED FOR THE APPLICATION.
SUPPLY FILTER
+5V TO +12V
L*
General Description
PIN
P
. It can also withstand over-
C*
P
. The output stage is
IN
Applications
GAIN
+5V
LINEAR LIDAR Rx
SUPPLY FILTER
DIS
MAX3806
+5V
V
CC
ATT
GND
OUT
♦ +5V Supply Voltage
♦ Linearity Range Up to 40µA
♦ Overload Current Up to 2mA
♦ 50mW Power Dissipation at +5.0V
♦ 1.5pA/√
♦ 14nA
♦ Selectable Gains (60kΩ, 30kΩ)
♦ Selectable 14dB Attenuation
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
Pin Configuration appears at end of data sheet.
MAX3806GTC+ -40°C to +105°C
0.01μF
PART
SINGLE-CHANNEL RECEIVER
BUFF
RMS
Hz Noise Density at 60kΩ Gain
Typical Application Circuits
Input-Referred Noise at 60kΩ Gain
0.01μF
0.01μF
TEMP RANGE
Ordering Information
MAX1446
ADC
P
P
12 TQFN-EP*
PACKAGE
PIN-
Features
MARK
ABN
TOP
1

Related parts for MAX3806GTC+

MAX3806GTC+ Summary of contents

Page 1

... Power Dissipation at +5.0V ♦ 1.5pA/√ √ ♦ 14nA RMS ♦ Selectable Gains (60kΩ, 30kΩ) ♦ Selectable 14dB Attenuation PART MAX3806GTC+ -40°C to +105°C + Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. Applications Pin Configuration appears at end of data sheet. +5V SUPPLY FILTER SINGLE-CHANNEL RECEIVER ...

Page 2

Receiver for Optical Distance Measurement ABSOLUTE MAXIMUM RATINGS Supply Voltage Range, V CC........................................ Voltage Range at ATT, DIS, GAIN ................ Current Range at IN, OUT ........................................... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the ...

Page 3

Receiver for Optical Distance Measurement ELECTRICAL CHARACTERISTICS (continued) = +4.5V to +5.5V, AC-coupled (C = 0.01µF) output load ≥ 2kΩ +25°C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL Attenuation in Disable Mode Output Impedance ...

Page 4

Receiver for Optical Distance Measurement (Typical values are +5V +25° BANDWIDTH vs. INPUT CAPACITANCE (GAIN = + ...

Page 5

Receiver for Optical Distance Measurement (Typical values are +5V +25° INPUT-REFERRED NOISE vs. INPUT CAPACITANCE +5V GAIN = 100MHz T = +105NC A 24 ...

Page 6

Receiver for Optical Distance Measurement (Typical values are +5V +25° TRANSIENT RESPONSE (LINEAR REGION, GAIN = 1) MAX3806 toc20 1µ OUT 60mV P 20MHz BW LIMIT 20ns/div IN 6 _______________________________________________________________________________________ ...

Page 7

Receiver for Optical Distance Measurement PIN NAME Power-Supply Connection Amplifier Input. Accepts AC-coupled photodiode input current GND Supply Ground CMOS/TTL Input. Assert this pin high to enable a 14dB attenuator in ...

Page 8

Receiver for Optical Distance Measurement V CC 200Ω 400Ω 100Ω Figure 1. Equivalent Output Circuit made to either the GAIN or ATT setting. Table 2 pro- vides typical output common-mode voltages for the combination of settings. Settling time is proportional ...

Page 9

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________ 9 © 2009 Maxim Integrated Products ...

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