ZHCSI51A May 2018 – June 2018 OPA521
PRODUCTION DATA.
5 Pin Configuration and Functions
RGW Package
20-Pin VQFN With Exposed Thermal Pad
Top View
NC - no internal connection
Pin Functions
| PIN | I/O | DESCRIPTION | |
|---|---|---|---|
| NAME | NO. | ||
| EN | 11 | I | Enables the amplifier (active high, high enables the OPA521) |
| GAIN_SET | 8 | I | Connect an external resistor to Gain_Set and -IN to increase the gain beyond -7 V/V |
| GND | 16, 17 | — | Ground |
| IFLAG | 13 | O | Current limit warning flag (open-drain, active high, high signifies current limit condition) |
| ILIM | 12 | I | Resistor programmable current limit |
| +IN | 9 | I | Non-inverting input (connect to a voltage equal to (V+)/2) |
| –IN | 7 | I | Inverting input for closed loop gain = –7 V/V |
| IQSET | 15 | I | Quiescent current select (active high, high configures the OPA521 to operate in FCC/ARIB bands, low configures the OPA521 to operate in CENELEC Bands A, B, C, D) |
| NC | 2, 3, 4, 5, 6, 10 | — | No internal connection |
| TFLAG | 14 | O | Thermal limit warning flag (open-drain, active high, high signifies thermal limit condition) |
| V+ | 1, 20 | — | Positive power supply |
| VOUT | 18. 19 | O | Output |
| Thermal pad | — | Must be soldered to PCB and connected to GND | |