{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*OPA1611,OPA1612,pdf(SoundPLUS.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"recommend_keyword_search_v1","node":"-Gn7X2aRSFmN2hMyaNEUCA","reason":{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*OPA1611,OPA1612,pdf(SoundPLUS.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1","caused_by":{"type":"illegal_argument_exception","reason":"expected ')' at position 33"}}}]},"status":400}
OPA1611(单通道)和OPA1612(双通道)双极型输入运算放大器在1kHz时可实现很低的噪声密度(1.1nV/√Hz)和超低失真(0.000015%)。OPA1611和O
2017-11-08 09:15
德州仪器 (TI)推出的业界最高性能的双通道、双极输入音频运算放大器。与同类竞争器件相比,隶属 TI Burr-Brown Audio 产品线的 OPA1612 可将噪声与失真分别降低 60
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OPA27 OPA37电路功能方块图
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OPA27 OPA37平衡热电红外检测器电路图
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OPA27 OPA37水声传感检测电路图
2009-06-25 10:38
OPA27 OPA37长波红外检测电路图
2009-06-25 10:35
OPA27 OPA37磁传感器转速测量电路图
2009-06-25 10:36
OPA27 OPA37磁带头检测电路图
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随着智能手机和平板电脑的高速发展,便携式高保真(Hi-Fi)音频市场的需求与之增长。无论是消费者还是做Hi-Fi的商家,都希望产品拥有更高的输出功率,并且保持低失真率的运放,从而驱动各种耳机。目前市场上大部分产品采用的TI公司的OPA1612,虽然失真率很低,但是驱动能力不够强。
2020-10-10 10:03
OPA502应用电路
2008-12-17 01:38