| Part No.： | AD654 |
| Page： | 12 Pages |
| Size： | 327 KB |
| Manufacturer： | Analog Devices, Inc. |
| Logo： |  |
| Views： | 2 |
| Update Time： | 2023-09-13 14:52:20 |
| DataSheet： | Download |
| Part No. | Packing | SPQ | Marking | MSL | Pins | Temp Range | Package Description | Buy |
| AD654JN | AD654JN | N/A | 8 | -40°C ~ 85°C | 8-Lead PDIP | |||
| AD654JNZ | Tube | 50 | AD654JN | N/A | 8 | -40°C ~ 85°C | 8-Lead PDIP | |
| AD654JNZ/+ | AD654JN | N/A | 8 | -40°C ~ 85°C | 8-Lead PDIP | |||
| AD654JR | - | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N | |||
| AD654JR-REEL | Reel | - | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N | ||
| AD654JR-REEL7 | Reel | - | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N | ||
| AD654JRZ | Tube | 98 | AD654J | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N | |
| AD654JRZ-REEL | Reel | 2500 | AD654J | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N | |
| AD654JRZ-REEL7 | Reel | 750 | AD654J | 1 | 8 | -40°C ~ 85°C | 8-Lead SOIC_N |
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 MΩ) 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.
