Distributor | SKU | Stock | Cost | |
---|---|---|---|---|
DigiKey | 505-AD628ARMZ-ND | 851 | $6.87 | Buy |
Mouser Electronics | 584-AD628ARMZ | 8879 | $6.84 | Buy |
Arrow North American Components | AD628ARMZ | 0 | $4.93 | Buy |
Win Source | AD628ARMZ | 28000 | Buy | |
Verical Marketplace | AD628ARMZ | 100 | $0.00 | Buy |
Arrow Europe | AD628ARMZ | 2616 | $4.55 | Buy |
element14 APAC | AD628ARMZ | 230 | * $7.41 | Buy |
Newark | AD628ARMZ | 250 | $7.14 | Buy |
Farnell | AD628ARMZ | 250 | * $7.07 | Buy |
Analog Devices Inc | AD628ARMZ | $6.56 | Buy |
The AD628 is a precision difference amplifier that combines excellent dc performance with high common-mode rejection over a wide range of frequencies. When used to scale high voltages, it allows simple conversion of standard control voltages or currents for use with single-supply ADCs. A wideband feedback loop minimizes distortion effects due to capacitor charging of Σ-Δ ADCs.A reference pin (VREF) provides a dc offset for converting bipolar to single-sided signals. The AD628 converts +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA input signals to a single-ended output within the input range of single-supply ADCs.The AD628 has an input common mode and differential mode operating range of ±120 V. The high common mode, input impedance makes the device well suited for high voltage measurements across a shunt resistor. The inverting input of the buffer amplifier is available for making a remote Kelvin connection.A precision 10 kΩ resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a low-pass filter. The AD628 operates from single and dual supplies and is available in an 8-lead SOIC_N or an 8-lead MSOP. It operates over the standard industrial temperature range of −40°C to +85°C.Applications High voltage current shunt sensing Programmable logic controllers Analog input front end signal conditioning +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA Isolation Sensor signal conditioning Power supply monitoring Electrohydraulic controls Motor controls