HT8721ARTZ

HT8721, HT8722, and HT8724 are single-channel, dual-channel, and quad-channel, rail-to-rail input and output, single-supply amplifiers featuring ultralow offset voltage and wide signal bandwidth. These amplifiers employ a novel patented trimming technique that achieves excellent performance without laser trimming. All devices operate from a single 3 V to 5 V supply. The combination of low offset, ultralow input bias current, and high-speed characteristics makes these amplifiers suitable for a wide range of applications. Filters, integrators, diode amplifiers, shunt sensors, and high-impedance sensors can all benefit from this combination of features. Wide bandwidth and low distortion characteristics are advantageous for audio and other AC applications. For most cost-sensitive applications, the B grade offers the same AC performance at a lower price point, but with reduced DC accuracy. The rail-to-rail input and output swing capability enables designers to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in single-supply systems.

Applications

• Current sensing
• Barcode scanners
• PA control
• Battery-powered instrumentation
• Multipole filters
• Sensors
• ASIC input/output amplifiers
• Audio

Key features

• Low offset voltage: 500μV (max)
• Single-supply operation: 2.7 V to 5.5 V
• Low supply current: 500μA per amplifier
• Wide bandwidth: 8 MHz
• Slew rate: 5 V/μs
• Low distortion
• No phase reversal
• Low input current
• Unity-gain stable
• Automotive-qualified