AD834AQ: 500 MHz Four-Quadrant Multiplier
The AD834 is a monolithic laser-trimmed four-quadrant analog multiplier intended for use in high frequency applications, having a transconductance bandwidth (RL=50 Ohm) in excess of 500 MHz from either of the differential voltage inputs. In multiplier modes, the typical total full scale error is 0.5%, dependent on the application mode and the external circuitry. Performance is relatively insensitive to temperature and supply variations, due to the use of stable biasing based on a bandgap reference generator and other design features.
To preserve the full bandwidth potential of the high speed bipolar process used to fabricate the AD834, the outputs appear as a differential pair of currents at open collectors. To provide a single ended ground referenced voltage output, some form of external current to voltage conversion is needed. This may take the form of a wideband transformer, balun, or active circuitry such as an op amp. In some applications (such as power measurement) the subsequent signal processing may not need to have a high bandwidth.
The transfer function is accurately trimmed such that when X=Y=±1V, the differential output is ±4mA. This absolute calibration allows the outputs of two or more AD834s to be summed with precisely equal weighting, independent of the accuracy of the load circuit.
The AD834J is specified for use over the commercial temperature range of 0° to +70°C and is available in an 8-pin plastic DIP package and an 8-pin plastic SOIC package. AD834A is available in cerdip for operation over the industrial temperature range of -40° C to +85° C. The AD834S/883B is specified for operation over the military temperature range of -55°C to +125°C and is available in the 8-pin cerdip package. S-Grade chips are also available.
Two application notes featuring the AD834 (AN-212 and AN-216) can now be obtained by calling 1-800-ANALOG-D. For additional applications circuits, consult the AD811 data sheet.
AD834AQ 特点
- DC to >500 MHz Operation
- Differential ±1 V Full-Scale Output Current
- Low Distortion (less than or equal to 0.05% for 0 dBm Input)
- Differential ±4 mA Full-Scale Inputs
- Supply Voltages from ±4 V to ±9 V
- Low Power (280 mW Typical at Vs = ±5 V)
AD834AQ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| AD834AQ | 量产 | 8 ld CerDIP | 8 | 工业 |
| AD834AR | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834AR-REEL | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834AR-REEL7 | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834ARZ | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834ARZ-R7 | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834ARZ-RL | 量产 | 8 ld SOIC | 8 | 工业 |
| AD834JN | 量产 | 8 ld PDIP | 8 | 商业 |
| AD834JNZ | 量产 | 8 ld PDIP | 8 | 商业 |
| AD834JR | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834JR-REEL | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834JR-REEL7 | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834JRZ | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834JRZ-R7 | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834JRZ-RL | 量产 | 8 ld SOIC | 8 | 商业 |
| AD834SQ/883B | 量产 | 8 ld CerDIP | 8 | 军用 |
AD834AQ 应用技术支持与电子电路设计开发资源下载
- AD834 数据手册DataSheet 下载 . pdf
- ADI 模拟器件公司比较器产品选型指南 . pdf
- Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf
