The OPA340 series rail-to-rail CMOS operational amplifiers are optimized for low-voltage, single-supply operation. Rail-to-rail input and output and high-speed operation make them ideal for driving sampling analog-to-digital (A/D) converters. They are also well-suited for general purpose and audio applications as well as providing I/V conversion at the output of digital-to-analog (D/A) converters. Single, dual, and quad versions have identical specifications for design flexibility.
The OPA340 series operate on a single supply as low as 2.5 V with an input common-mode voltage range that extends 500 mV below ground and 500 mV above the positive supply. Output voltage swing is to within 1 mV of the supply rails with a 100-kΩ load. These devices offer excellent dynamic response
(BW = 5.5 MHz, SR = 6 V/µs), yet quiescent current is only 750 A. Dual and quad designs feature completely independent circuitry for lowest crosstalk and freedom from interaction.
The single (OPA340) packages are the tiny 5-pin SOT-23 surface mount, 8-pin SOIC surface mount, and 8-pin DIP. The dual (OPA2340) comes in the miniature 8-pin VSSOP surface mount, 8-pin SOIC surface mount, and 8-pin PDIP packages. The quad (OPA4340) packages are the space-saving 16-pin SSOP surface mount and 14-pin SOIC surface mount. All are specified from –40°C to 85°C and operate from –55°C to 125°C. A SPICE macromodel is available for design analysis.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
OPA340 | SOT-23 (5) | 3.00 mm × 3.00 mm |
OPA340, OPA2340 | PDIP (8) | 9.81 mm × 6.35 mm |
SOIC (8) | 4.90 mm × 3.91 mm | |
OPA2340 | VSSOP (8) | 3.00 mm × 3.00 mm |
OPA4340 | SOIC (14) | 8.65 mm × 3.91 mm |
SSOP (16) | 4.90 mm × 3.90 mm |
Changes from B Revision (November 2007) to C Revision
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | SOT-23 | SOIC, PDIP | ||
–IN | 4 | 2 | I | Negative (inverting) input |
+IN | 3 | 3 | I | Positive (noninverting) input |
NC | — | 1, 5, 8 | — | No internal connection (can be left floating) |
OUT | 1 | 6 | O | Output |
V– | 2 | 4 | — | Negative (lowest) power supply |
V+ | 5 | 7 | — | Positive (highest) power supply |
PIN | I/O | DESCRIPTION | |
---|---|---|---|
NAME | VSSOP, SOIC, PDIP | ||
–IN A | 2 | I | Negative (inverting) input channel A |
+IN A | 3 | I | Positive (noninverting) input channel A |
–IN B | 6 | I | Negative (inverting) input channel B |
+IN B | 5 | I | Positive (noninverting) input channel B |
OUT A | 1 | O | Output channel A |
OUT B | 7 | O | Output channel B |
V– | 4 | — | Negative (lowest) power supply |
V+ | 8 | — | Positive (highest) power supply |
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | SOIC | SSOP | ||
–IN A | 2 | 2 | I | Negative (inverting) input channel A |
–IN B | 6 | 6 | I | Negative (inverting) input channel B |
–IN C | 9 | 11 | I | Negative (inverting) input channel C |
–IN D | 13 | 15 | I | Negative (inverting) input channel D |
+IN A | 3 | 3 | I | Positive (noninverting) input channel A |
+IN B | 5 | 5 | I | Positive (noninverting) input channel B |
+IN C | 10 | 12 | I | Positive (noninverting) input channel C |
+IN D | 12 | 14 | I | Positive (noninverting) input channel D |
NC | — | 8, 9 | — | No internal connection (can be left floating) |
OUT A | 1 | 1 | O | Output, channel A |
OUT B | 7 | 7 | O | Output, channel B |
OUT C | 8 | 10 | O | Output, channel C |
OUT D | 14 | 16 | O | Output, channel D |
V– | 11 | 13 | — | Negative (lowest) power supply |
V+ | 4 | 4 | — | Positive (highest) power supply |