Voltage amplifier AMC0230D

differentialmeasuringisolation

Short description
The AMC0x30D family provides precision galvanically isolated amplifiers with a ±1 V, high‑impedance input and a fixed‑gain differential output. The device is optimized for measuring voltages from high‑impedance sources (for example resistive dividers) and converts the input to a differential output that is insensitive to ground shifts, enabling long‑distance signal routing.

Key parameters

• Device type: Voltage sensing
• Input range (pk‑pk): ±1 V
• Output type: Differential, fixed gain 2 V/V
• Input impedance: 2.4 GΩ (typ.)
• Isolation rating: Basic (AMC0230D)
• Withstand isolation voltage (VISO): 3000 Vrms (D package)
• Working isolation voltage (VIOWM): 800 Vrms
• Transient isolation (VIOTM): 4250 Vpk
• CMTI (min): 150 kV/µs (≈150 V/ns)
• Creepage / clearance (min): 4 mm
• Operating temperature: −40°C to +125°C

Features

• Linear input voltage range ±1 V
• Very high input impedance (≈2.4 GΩ) for minimal loading of source
• Supply voltage range: VDD1 = 3.0–5.5 V; VDD2 = 3.0–5.5 V
• Fixed gain: 2 V/V
• Differential output immune to ground shifts
• Low DC errors:
  • Offset error: ±0.8 mV (max)
  • Offset drift: ±10 µV/°C (max)
  • Gain error: ±0.25% (max)
  • Gain drift: ±40 ppm/°C (max)
  • Nonlinearity: ±0.025% (max)
• High CMTI: 150 V/ns (min)
• Low EMI: meets CISPR‑11 and CISPR‑25
• Safety certifications: DIN EN IEC 60747‑17 (VDE 0884‑17), UL1577
• Package options: 8‑pin SOIC (D), wide and narrow body

Available media (descriptions only)
Typical application image available. Recommended layout image available. Package image available (8‑pin D package).

Technical specifications

• Model family: AMC0x30D series
• Fixed gain: 2 V/V
• Input offset (max): 0.008 V (8 mV)
• Input offset drift (typ): 1 µV/°C
• VISO (withstand): 3000 Vrms (basic, D package)
• VIOTM (transient): 4250 Vpk
• VIOWM (working): 800 Vrms
• Min creepage/clearance: 4 mm
• Package area (example): 29.4 mm² (approx. 4.9 x 6 mm)
• Operating temperature: −40°C to +125°C