LMP7721MAEVAL National Semiconductor, LMP7721MAEVAL Datasheet - Page 4

• Manufacturer Part Number: LMP7721MAEVAL
• Description: BOARD EVALUATION FOR LMP7721
• Manufacturer: National Semiconductor
• Series: LMP®, PowerWise®r

Specifications of LMP7721MAEVAL

• Channels Per Ic: 1 - Single
• Amplifier Type: General Purpose
• Output Type: Single-Ended
• Slew Rate: 12.8 V/µs
• Current - Output / Channel: 60mA
• Operating Temperature: -40°C ~ 125°C
• Current - Supply (main Ic): 1.3mA
• Voltage - Supply, Single/dual (±): 1.8 V ~ 5.5 V, ±0.9 V ~ 2.75 V
• Board Type: Fully Populated
• Utilized Ic / Part: LMP7721
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Transimpedance Amplifier
(Inverting Amplifier with Level Shift)
In this application, the LMP7721 is used as a transimpedance
amplifier that converts the current generated in the pin diode
FIGURE 3.
4
by light, or other radiation source, to a voltage at the amplifiers
output. The input is biased to 2.5 volts by the V
resistive divider R
generate a voltage at the amplifier’s output equal to (2.5volts
-(I
pin-diode
) X (R
3
)).
5
and R
6
. Current from the Pin Diode will
30054003
REF
and the