The uA747 is a dual general-purpose operational amplifier featuring offset-voltage null capability. Each half is electrically similar to uA741.
The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for voltage-follower applications. The device is short-circuit protected and the internal frequency compensation ensures stability without external components. A low-value potentiometer may be connected between the offset null inputs to null out the offset voltage as shown in Figure 2.
The uA747C is characterized for operation from 0°C to 70°C; the uA747M is characterized for operation over the full military temperature range of -55°C to 125°C.
| Number of channels | 4 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 36 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 7 |
| Rail-to-rail | No |
| GBW (typ) (MHz) | 1 |
| Slew rate (typ) (V/µs) | 0.5 |
| Vos (offset voltage at 25°C) (max) (mV) | 5 |
| Iq per channel (typ) (mA) | 1.7 |
| Vn at 1 kHz (typ) (nV√Hz) | 20 |
| Rating | Catalog |
| Operating temperature range (°C) | 0 to 70 |
| Offset drift (typ) (µV/°C) | 0 |
| Input bias current (max) (pA) | 500000 |
| CMRR (typ) (dB) | 90 |
| Iout (typ) (A) | 0.025 |
| Architecture | Bipolar |
| Input common mode headroom (to negative supply) (typ) (V) | 2 |
| Input common mode headroom (to positive supply) (typ) (V) | -2 |
| Output swing headroom (to negative supply) (typ) (V) | 2 |
| Output swing headroom (to positive supply) (typ) (V) | -2 |
| PDIP (N) | 14 | 181.42 mm² 19.3 x 9.4 |
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