MTI04BS ETC1 [List of Unclassifed Manufacturers], MTI04BS Datasheet - Page 3

• Manufacturer Part Number: MTI04BS
• Description: MULTI-CHANNEL PROGRAMMABLE GAIN TRANSIMPEDANCE AMPLIFIER
• Manufacturer: ETC1 [List of Unclassifed Manufacturers]

Distributor: Laser Components Instrument Group, Wilmington MA, Phone: [phone], www.laser-components.com
power supply
input and output voltages
power dissipation
operating temperature
storage temperature
3. DESCRIPTION OF INTERFACE
3.1 Pinning
signal name
a.) analog or digital
3.2 Adjustment Of Transimpedance
a.) default by pull down
4. DESCRIPTION OF FUNCTION
The MTI-devices are programmable gain transimpedance amplifiers with different numbers
of channels (MTI04 – 4 channels; MTI08 – 8 channels). There is one transimpedance
amplifier per channel between a current input INX and a voltage output OUTX. Its
transimpedance is selectable in 3 stages. This adjustment can be effected by setting of
digital inputs SW1 and SW2 and is valid for all channels simultaneously (headline 3.2). The
inputs SW1 and SW2 are pulled down with a resistor for a default feedback resistor of
25k .
The second input of all transimpedance amplifiers is used for a common supply by a
reference voltage necessarily fed in through the pin VREF.
All channels are compensated for an external input capacitance of the photo-sensor of
typical 20pF.
The power supply for the MTI-devices is typical 5V between VDD and GND.
5. ELECTRICAL CHARACTERISTICS
5.1 Absolute Maximum Ratings
Violations of absolute maximum ratings are not allowed under any circumstances.
All voltages are referenced to VSS = 0V.
OUTX
GND
VDD
SW1
SW2
INX
SW1
GND
GND
VDD
VDD
settings of digital inputs
parameter
output
Typ.
input
input
input
input
input
SW2
GND
VDD
GND
VDD
a/d
a/d
a/d
d
d
a
a
a
⇒ IC-pinning
name
Sheet 3 of 10
VDD
T
P
T
power supply ( )
power supply ( )
input 1 for adjustment of transimpedance of MTI-
amplifier (pull down)
input 2 for adjustment of transimpedance of MTI-
amplifier (pull down)
analog current input of amplifier X
analog voltage output of amplifier X
STG
OP
OP
transimpedance Rf
min.
0,3
0,3
55
500k – stage 2
25k
5M – stage 1
function
not used
a
– stage 3
VDD
max.
155
7,0
0,1
85
0,3
unit
°C
°C
W
V
V