0
ACTIVE
Architecture |
Voltage FB |
Number of channels |
4 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) |
5 |
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) |
12 |
GBW (typ) (MHz) |
250 |
BW at Acl (MHz) |
650 |
Acl, min spec gain (V/V) |
1 |
Slew rate (typ) (V/µs) |
240 |
Vn at flatband (typ) (nV√Hz) |
2.5 |
Vn at 1 kHz (typ) (nV√Hz) |
2.5 |
Iq per channel (typ) (mA) |
5.6 |
Vos (offset voltage at 25°C) (max) (mV) |
0.8 |
Rail-to-rail |
No |
Rating |
Catalog |
Operating temperature range (°C) |
-40 to 85 |
CMRR (typ) (dB) |
85 |
Input bias current (max) (pA) |
20000000 |
Offset drift (typ) (µV/°C) |
4 |
Iout (typ) (mA) |
85 |
2nd harmonic (dBc) |
84 |
3rd harmonic (dBc) |
92 |
Frequency of harmonic distortion measurement (MHz) |
1 |
SOIC (D)-14-51.9 mm² 8.65 x 6
HzAll trademarks are the property of their respective owners.
The OPA4820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications.
Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps.
Exceptionally low dG/dP (0.01%/0.03°) supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14.
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