• AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
  • AD8556ARZ
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The AD8556 is a zero-drift, sensor signal amplifier with digitally programmable gain and output offset. Designed to easily and accurately convert variable pressure sensor and strain bridge outputs to a well-defined output voltage range, the AD8556 accurately amplifies many other differential or single-ended sensor outputs. The AD8556 uses the ADI patented low noise auto-zero and DigiTrim® technologies to create an incredibly accurate and flexible signal processing solution in a very compact footprint. Gain is digitally programmable in a wide range from 70 to 1,280 through a serial data interface. Gain adjustment can be fully simulated in-circuit and then permanently programmed with reliable polyfuse technology. Output offset voltage is also digitally programmable and is ratiometric to the supply voltage. AD8556 also features internal EMI filters on the VNEG, VPOS, FILT and VCLAMP pins. In addition to extremely low input offset voltage, low input offset voltage drift, and very high dc and ac CMRR, the AD8556 also includes a pull-up current source at the input pins and a pull-down current source at the VCLAMP pin. This allows open wire and shorted wire fault detection. A low-pass filter function is implemented via a single low cost external capacitor. Output clamping set via an external reference voltage allows the AD8556 to drive lower voltage ADCs safely and accurately. When used in conjunction with an ADC referenced to the same supply, the system accuracy becomes immune to normal supply voltage variations. Output offset voltage can be adjusted with a resolution of better than 0.4% of the difference between VDD and VSS. A lockout trim after gain and offset adjustment further ensures field reliability. The AD8556 is fully specified from -40°C to +140°C. Operating from single-supply voltages of 2.7 V to 5.5 V, the AD8556 is offered in the 8-lead SOIC_N, and 4 mm × 4 mm 16-lead LFCSP_VQ. Applications Automotive Sensors Pressure and Position Sensors Precision Current Sensing Strain Gages

supply_voltage_dc5.50 V
gbw2.00 MHz
cmrr80.0 dB
reach_svhc_complianceNo SVHC
lead_free_statusContains Lead
mounting_styleSurface Mount
packagingTube
case_packageSOIC
bandwidth700 kHz
slew_rate1.20 V/μs
supply_current2.70 mA
number_of_circuits1
lifecycle_statusActive
rohs_statusCompliant
pin_count8
number_of_channels1
No. of Channels1Channels
No. of Amplifiers1Amplifiers
Bandwidth700kHz
Operating Temperature Min-40°C
Operating Temperature Max140°C
Supply Voltage Range2.7V to 5.5V
Amplifier Case StyleSOIC
No. of Pins8Pins
PackagingEach
Product RangeAD8556 Series
Automotive Qualification Standard-
RoHS Phthalates CompliantYes
MSLMSL 1 - Unlimited
SVHCNo SVHC (07-Jul-2017)
Amplifer Supply Voltage2.7V to 5.5V
Amplifier TypeSensor
Base Number8556
Gain Bandwidth8MHz
Gain dB Max1210dB
IC Generic Number8556
Input Offset Voltage Max0.01mV
Logic Function Number8556
Operating Temperature Range-40°C to +140°C
Rail To Rail I/O TypeRail-Rail I/O
Slew Rate1.2V/µs
Supply Voltage + Nom5.5V
Supply Voltage Max5.5V
Supply Voltage Min4.5V
Termination TypeSurface Mount Device
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