The OPA350 series of rail-to-rail CMOS operational amplifiers are optimized for low voltage, single-supply operation. Rail-to-rail input and output, low noise (5 nV/√Hz), and high speed operation (38 MHz, 22 V/µs) make the amplifiers ideal for driving sampling Analog-to-Digital (A/D) converters. They are also suited for cell phone PA control loops and video processing (75-Ω drive capability), as well as audio and general purpose applications. Single, dual, and quad versions have identical specifications for maximum design flexibility.
The OPA350 series operates on a single supply as low as 2.5 V, with an input common-mode voltage range that extends 300 mV below ground and 300 mV above the positive supply. Output voltage swing is to within 10 mV of the supply rails, with a 10-kΩ load. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.
The single (OPA350) and dual (OPA2350) come in the miniature MSOP-8 surface mount, SO-8 surface mount, and DIP-8 packages. The quad (OPA4350) packages are in the space-saving SSOP-16 surface mount and SO-14 surface mount. All are specified from –40°C to 85°C and operate from –55°C to 150°C.
| Part number | Order | Number of channels (#) | Total supply voltage (Min) (+5V=5, +/-5V=10) | Total supply voltage (Max) (+5V=5, +/-5V=10) | GBW (Typ) (MHz) | Slew rate (Typ) (V/us) | Rail-to-rail | Vos (offset voltage @ 25 C) (Max) (mV) | Offset drift (Typ) (uV/C) | Iq per channel (Typ) (mA) | Vn at 1 kHz (Typ) (nV/rtHz) | CMRR (Typ) (dB) | Rating | Operating temperature range (C) | Package Group | Package size: mm2:W x L (PKG) | Input bias current (Max) (pA) | Output current (Typ) (mA) | Features | Architecture |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OPA350 |
|
1 | 2.7 | 5.5 | 38 | 22 |
In
Out |
0.5 | 4 | 5.2 | 7 | 84 | Catalog | -40 to 85 |
PDIP | 8
SOIC | 8 VSSOP | 8 |
8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8) 8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
10 | 80 | High Cload Drive | CMOS |
| OPA2350 |
|
2 | 2.7 | 5.5 | 38 | 22 |
In
Out |
0.5 | 4 | 5.2 | 7 | 84 | Catalog | -40 to 85 |
SOIC | 8
VSSOP | 8 |
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
10 | 80 | CMOS | |
| OPA4350 |
|
4 | 2.7 | 5.5 | 38 | 22 |
In
Out |
0.5 | 4 | 5.2 | 7 | 84 | Catalog | -40 to 85 |
SOIC | 14
SSOP | 16 |
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)
16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16) |
10 | 80 | High Cload Drive | CMOS |
