DUAL OPERATIONAL AMPLIFIER
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC4570
ULTRA LOW-NOISE, WIDEBAND, DUAL OPERATIONAL AMPLIFIER
DESCRIPTION ...
Description
DATA SHEET
BIPOLAR ANALOG INTEGRATED CIRCUIT
µPC4570
ULTRA LOW-NOISE, WIDEBAND, DUAL OPERATIONAL AMPLIFIER
DESCRIPTION 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.
FEATURES 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
ORDERING INFORMATION
Part Number
Package
µPC4570C
8-pin plastic DIP (7.62 mm (300))
µPC4570G2
8-pin plastic SOP (5.72 mm (225))
µPC4570HA
9-pin plastic slim SIP
EQUIVALENT CIRCUIT (1/2 Circuit)
V+
R1
Q7
Q5
Q14
Q11
Q13
Q8
R7
Q16
II
Q1
Q2
Q9
IN
R5
R6 C2
R8 R9
Q12 Q15
Q6
Q3
Q4
Q10
OUT
R2
C1 R3
R4
R10
D
V−
V+ OUT1
I I1 I N1 V– I N2 I I2 OUT2 V+
PIN CONFIGURATION (Top View)
µPC4570C, 4570G2
OUT1 1 1
–+
I I1 2
I N1 3
8 V+
7 OUT2 2
+–
6 I I2
V– 4
5 IN2
µPC4570HA
1
2
–+
+–
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