The OPA344 and OPA345 series rail-to-rail CMOS operational amplifiers are designed for precision, low-power, miniature applications. The OPA344 is unity gain stable, while the OPA345 is optimized for gains greater than or equal to five, and has a gain-bandwidth product of 3MHz.
The OPA344 and OPA345 are optimized to operate on a single supply from 2.5V and up to 5.5V with an input common-mode voltage range that extends 300mV beyond the supplies. Quiescent current is only 250µA (max).
Rail-to-rail input and output make them ideal for driving sampling analog-to-digital converters. They are also well suited for general purpose and audio applications and providing I/V conversion at the output of D/A converters. Single, dual and quad versions have identical specs for design flexibility.
A variety of packages are available. All are specified for operation from –40°C to 85°C. A SPICE macromodel for design analysis is available for download from www.ti.com.
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| 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) |
| Iq per channel (Typ) (mA) |
| Vn at 1 kHz (Typ) (nV/rtHz) |
| Rating |
| Operating temperature range (C) |
| Package Group |
| Package size: mm2:W x L (PKG) |
| Offset drift (Typ) (uV/C) |
| Features |
| Input bias current (Max) (pA) |
| CMRR (Typ) (dB) |
| Output current (Typ) (mA) |
| Architecture |
| OPA2344 | OPA344 | OPA4344 |
|---|---|---|
| 2 | 1 | 4 |
| 2.5 | 2.5 | 2.5 |
| 5.5 | 5.5 | 5.5 |
| 1 | 1 | 1 |
| 0.8 | 0.8 | 0.8 |
|
In Out |
In Out |
In Out |
| 1 | 1 | 1 |
| 0.15 | 0.15 | 0.15 |
| 30 | 30 | 30 |
| Catalog | Catalog | Catalog |
| -40 to 85 | -40 to 85 | -40 to 85 |
|
SOIC | 8
VSSOP | 8 |
PDIP | 8
SOIC | 8 SOT-23 | 5 |
SOIC | 14
TSSOP | 14 |
|
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 8) |
See datasheet (PDIP) 8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8) 5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5) |
14SOIC: 52 mm2: 6 x 8.65 (SOIC | 14)
14TSSOP: 32 mm2: 6.4 x 5 (TSSOP | 14) |
| 3 | 3 | 3 |
|
|
|
|
| 1 | 1 | 1 |
| 92 | 92 | 92 |
| 15 | 15 | 15 |
| CMOS | CMOS | CMOS |
| Order now | Order now | Order now |
