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The AD654 is a monolithic V/F converter consisting of an input amplifier, a precision oscillator system, and a high current output stage. A single RC network is all that is required to set up any full scale (FS) frequency up to 500 kHz and any FS input voltage up to ±30 V. Linearity error is only 0.03% for a 250 kHz FS, and operation is guaranteed over an 80 dB dynamic range. The overall temperature coefficient (excluding the effects of external components) is typically ±50 ppm/°C. The AD654 operates from a single supply of 5 V to 36 V and consumes only 2.0 mA quiescent current. The low drift (4 µV/°C typ) input amplifier allows operation directly from small signals such as thermocouples or strain gauges while offering a high (250 M(ohm)) input resistance. Unlike most V/F converters, the AD654 provides a square-wave output, and can drive up to 12 TTL loads, optocouplers, long cables, or similar loads.
| clock_speed | 500 kHz (max) |
| reach_svhc_compliance | No SVHC |
| lead_free_status | Contains Lead |
| mounting_style | Surface Mount |
| packaging | Tube |
| case_package | SOIC |
| bandwidth | 500 kHz |
| frequency | 500 kHz |
| supply_current | 2.50 mA |
| lifecycle_status | Active |
| rohs_status | Compliant |
| pin_count | 8 |
| Frequency | 500kHz |
| Full Scale Range | 0Hz to 500kHz |
| Linearity % | 0.03% |
| Supply Voltage Range | ± 5V to ± 18V |
| Digital IC Case | SOIC |
| No. of Pins | 8Pins |
| Packaging | Each |
| Product Range | AD654 Series |
| RoHS Phthalates Compliant | Yes |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (07-Jul-2017) |
| Converter Type | Voltage / Frequency |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
| Output Current Max | 50mA |
| Supply Current | 2mA |
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