The THS4520 is a wideband, fully differential operational amplifier designed for 5-V data acquisition systems. It has very low noise at 2 nV/
load. The slew rate is 570 V/µs, and with a settling time of 7 ns to 0.1% (2-V step), it is ideal for data acquisition applications. It is designed for unity gain stability.
To allow for dc coupling to ADCs, its unique output common-mode control circuit maintains the output common-mode voltage within 0.25 mV offset (typical) from the set voltage. The common-mode set point defaults to mid-supply by internal circuitry, which may be over-driven from an external source.
The input and output are optimized for best performance with their common-mode voltages set to mid-supply. Along with high performance at low power supply voltage, this makes for extremely high performance single supply 5-V and 3.3-V data acquisition systems.
The THS4520 is offered in a Quad 16-pin leadless QFN package (RGT), and is characterized for operation over the full industrial temperature range from 40°C to 85°C.
| Number of channels | 1 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 3 |
| Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 5.25 |
| BW at Acl (MHz) | 620 |
| Acl, min spec gain (V/V) | 1 |
| Slew rate (typ) (V/µs) | 570 |
| Architecture | Bipolar, Fully Differential ADC Driver |
| Vn at flatband (typ) (nV√Hz) | 2 |
| Iq per channel (typ) (mA) | 14.2 |
| Rail-to-rail | Out |
| Vos (offset voltage at 25°C) (max) (mV) | 2.5 |
| Operating temperature range (°C) | -40 to 85 |
| Iout (typ) (mA) | 105 |
| 2nd harmonic (dBc) | 115 |
| 3rd harmonic (dBc) | 123 |
| Frequency of harmonic distortion measurement (MHz) | 0.1 |
| GBW (typ) (MHz) | 1200 |
| Input bias current (max) (pA) | 10000000 |
| Features | Shutdown |
| CMRR (typ) (dB) | 84 |
| Rating | Catalog |
| VQFN (RGT) | 16 | 9 mm² 3 x 3 |