BIPOLAR ANALOG INTEGRATED CIRCUIT
ULTRA LOW-NOISE, WIDEBAND, DUAL OPERATIONAL AMPLIFIER
The µPC4570 is an ultra low-noise, wideband high slew-rate, dual operational amplifier. Input equivalent noise is three
times better than the conventional 4558 type op-amps. The gain bandwidth products and the slew-rate are seven times
better than 4558. In spite of fast AC performance, the µPC4570 is extremely stable under voltage-follower circuit
conditions. Supply current is also improved compared with conventional wideband op-amps. The µPC4570 is an
excellent choice for pre-amplifiers and active filters in audio, instrumentation, and communication circuits.
• Ultra low noise : en = 4.5 nV/√Hz
• High slew rate : 7 V/µs
• High gain bandwidth product : GBW = 15 MHz at 100 kHz
• Internal frequency compensation
8-pin plastic DIP (7.62 mm (300))
8-pin plastic SOP (5.72 mm (225))
9-pin plastic slim SIP
EQUIVALENT CIRCUIT (1/2 Circuit)
II Q1 Q2
PIN CONFIGURATION (Top View)
I I1 2
I N1 3
6 I I2
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. G10528EJ6V0DS00 (6th edition)
(Previous No. IC-1996)
Date Published October 2001 NS CP(K)
Printed in Japan
The mark 5 shows major revised points.