【产品】支持36V供电的放大器，-40～125℃内失调电压不超过70μV

时间： 2021-03-16 来源：思瑞浦

技术问答

思瑞浦（3PEAK）新推出了适用于精密应用的高压零漂放大器系列---TPA188x、TPA186x、TP27。将TP555x的零漂移技术从5V供电扩展到了36V供电，在-40℃～125℃内失调电压不超过70uV，0.1到10Hz的电压噪声峰峰值为0.1uV，满足工业设备、测试测量等应用对高压高精度放大器的失调电压、失调电压随温度的漂移和噪声的需求。

该系列产品的增益带宽积为5MHz和12MHz，拓宽了精密放大器可以工作的闭环增益和闭环带宽范围，适用于对带宽和精度都有要求的应用。如果把闭环带宽限制在50KHz内，可以避开零漂移技术带来的100KHz出的噪声谱高值，达到良好的输出噪声水平。TPA186x、TP27可以把增益设置为100倍， TPA188x可以把增益设置为200倍，满足精密电源、电池测试等需要测量高频的电流小信号的信号调理需求。

秉承思瑞浦（3PEAK）可靠性至上的设计理念，该系列产品的HBM达到2KV，CDM达到1KV；作为高压CMOS器件，产品对Latch Up做了特殊强化，达到500mA的Latch Up水平，提高了产品对恶劣上电时序、热插拔、现场干扰等对IO管脚和电源管脚的异常电压和电流冲击的耐受能力，降低了工业控制、电池测量、现场仪器仪表等应用对放大器可靠性设计的要求。

该系列产品提升了思瑞浦高压放大器的精度指标，扩大了应用中对高压放大器的各类需求。

应用对高精度放大器的需求主要是低失调电压、低失调电压随温度的漂移和低噪声。

1、低失调电压

失调电压虽然可以通过系统硬件和软件校准解决。使用硬件校准会增加硬件设计复杂度和生产工序，带来额外的成本；而使用软件校准，在小信号的放大应用中会降低动态范围，从而降低放大器可以设置的闭环增益。低失调电压能够提升系统可设置的闭环增益，同时也能省掉硬件校准带来的成本。

2、低失调电压随温度的漂移

失调电压随温度的漂移的要求更高，因为失调电压可以通过系统校准解决，而失调电压随温度的漂移需要通过增加温度范围下的系统校准，一般很难在实际生产中实施。思瑞浦（3PEAK）使用零漂技术的高压放大器可以做到失调电压在常温下<50uV， -40℃～125℃下<70uV，失调电压的漂移<0.2uV/度。

图1为TPA1882的40颗样品在-40℃、25℃、85℃和125℃的失调电压数据，都在±15uV内，显示失调电压具有良好的温度稳定性。

图1、失调电压数据

3、低噪声

除了失调电压和失调电压随温度的漂移之外，放大器的噪声也是精密应用中的一个重要考虑因素。可以考察直流应用中需要关注的0.1～10Hz的电压噪声峰峰值，该频率内主要的噪声是1/f噪声，传统的CMOS工艺放大器的1/f噪声非常差，如TP1282的0.1～10Hz的电压噪声峰峰值为12uV，噪声谱密度如图2所示，

图2、TP1282L1的电压噪声谱密度

如果对此指标有较高要求，常用的选择是BIPOLAR工艺制造的精密放大器如OP1117，可以做到0.1～10Hz内的电压噪声峰峰值为0.4uVpp。TPA188X、TPA186X、TP27使用的斩波零漂技术，可以将低频噪声消除，在0.1～10Hz内做到0.1uVpp。

下面图3为TPA188X的噪声谱密度。

图3、 TPA188X的电压噪声谱密度

可以看到斩波零漂技术将低频噪声消除的代价---噪声谱在斩波零漂为100K的频率带来了较高的噪声。思瑞浦（3PEAK）也对此噪声进行了优化，压低到25nV/Hz。如果应用对噪声非常敏感，可以考虑使用电阻和电容进行低通滤波，把电路的带宽压低到50KHz内，消除100KHz的尖峰噪声的影响。

高压高精度系列放大器产品

目前TPA188x、TPA186x、TP27全系列产品在超过100家客户处通过了样品测试与验证，满足对精度、速度和可靠性都有要求的各类应用。

推荐在新产品中使用的高压放大器（以单通道放大器为例）

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本文由宝丁转载自思瑞浦，原文标题为:3PEAK高压零漂放大器，契合精密应用，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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Iq per channel (Max)(μA)

Offset Drift(Typ)(μV/°C)

Ib(typ)(pA)

Vn (Typ) (nV/rtHz)

Peak Noise at 0.1 to 10Hz(μVpp)

Operating Temperature Range(°C)

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思瑞浦（3PEAK）汽车应用线性/转换器/电源管理产品选型指南

描述- 3PEAK is committed to the research and development of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal frontends, and embedded processors to provide customers with all-around solutions.

型号- TPM27524Q-SO1R-S,TPQ50571Q-QFNR-S,TPL803133Q-DF6R-S,TPA1882Q-VR-S,TPA5562Q-VS1R-S,TPT1029Q-DFCR-S,TPC5120Q-TS7R-S,TPT1044Q-DFCR-S,TPT1029Q-SO1R-S,TPM2025Q-FC1R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPT1042Q-SO1R-S,TPS42S40BQ-TSAR-S,TPA1882Q-SO1R-S,TPA1881Q-S5TR-S,TPA5561Q-S5TR-S,TPL853650Q-TSBR-S,TPA5562Q-SO1R-S,TPT1057Q-SO1R-S,TPV710NZQ-S5TR-S,TPQ5055Q-DFTR-S,TPT1044Q-SO1R-S,TPT1057Q-DFCR-S,TPT1462VQ-DFCR-S,TPT1044VQ-SO1R-S,TPT1024Q-QFXR-S,TPA2031Q-S5TR-S,TPC5121Q-TS8R-S,TPM27524Q-DF4R-S,TPT1051VQ-DF6R-S,TPT1043Q-SO2R-S,TPL803150Q-EV1R-S,TPT1021Q-DFCR-S,TPT1051Q-SO1R-S,TPL803133Q-EV1R-S,TPV8368SAQ-S6TR-S,TS2903Q-SO1R-S,TPA5572Q-VS1R-S,TPT1462Q-DFCR-S,TPA5571Q-S5TR-S,TPM5350MQ-SOAR-S,TPT10285Q-SO1R-S,TPT1022Q-DFKR-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,TPT1057VQ-SO1R-S,TPT1051VQ-SO1R-S,TPM2015Q-FC1R-S,TPA1862Q-SO1R-S,TPT10283Q-SO1R-S,TPT1042VQ-SO1R-S,TPL803133Q-ST4R-S,TPL803433Q-EV1R-S,TPL803450Q-EV1R-S,TPQ50551Q-DFTR-S,TPT29539Q-TS5R-S,TPM92611Q-EV1R-S,TPL855650Q-TSCR-S,TPL803150Q-ST4R-S,TPS42S40AQ-TSAR-S,TPM27524Q-EV1R-S,TPM6505BQ-S6TR-S,TPM6501AQ-S5TR-S,TPA5571NQ-S6TR-S,TPT1022Q-SO2R-S,TPT1043Q-DFKR-S,TPL855633Q-TSCR-S,TPT1044VQ-DFCR-S,TPL853633Q-TSBR-S,TPT1057VQ-DFCR-S,TPL8651Q-ES1R-S,TPT1145NQ-SO2R-S,TPT1462VQ-SO1R-S,TPT1145NQ-DFKR-S,TPM6505AQ-S6TR-S,TPT1462Q-SO1R-S,TPT10285Q-DFCR-S,TPL8151ADQ-ES1R-S,TPA1861Q-S5TR-S,TP28Q-VS1R-S,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,TPW3188Q-TS3R-S,TPT1042Q-DF6R-S,TPT10283Q-DFCR-S,TPA5572Q-SO1R-S,TPT1021Q-SO1R-S

选型指南 - 思瑞浦 - Rev.3 - 2024/3/12 PDF 英文下载

【经验】思瑞浦车规级高压精密运算放大器TPA1882Q-VR-S设计经验

思瑞浦国产车规级高压精密运算放大器TPA1882Q-VR-S，通过AEC-Q100认证，工温−40到125℃。工作电压范围4.5V至36V，低失调电压50μV、带宽12MHz、转换速率10V/μs，静态电流2mA。

设计经验发布时间 : 2022-12-06

思瑞浦（3PEAK）车规芯片选型指南（英文）

描述- Established in 2012, 3PEAK was listed on the Shanghai Science and Technolog y Innovation Board on September 21, 2020. The company is committed to the research and de velopment of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal front-ends, and embedded processors to provide customers with all-around solutions

型号- LM2904A-VS1R-S,TPL8032ADQ,TP1562AL1-SO1R-S,TPM27524Q-SO1R-S,TPA2031Q,TPT1042V-SO1R-S,TPL803133Q-DF6R-S,TPT7742-SOBR-S,TPH2861-DF4R-S,TPR6040F30-S3TR-S,TPM2025Q-FC1R-S,TPT1042Q-SO1R-S,TPA1881Q-S5TR-S,TPR6040F33-S3TR-S,LM2902A-TS2R-S,TPR33XX,TPA8001-SOAR-S,TPA8003-SOAR-S,TP1564AL1-SO2R-S,TPL905236-S5TR-S,TP2262L1-SO1R-S,TPT1043Q-SO2R-S,TPT1051VQ-DF6R-S,TPR6040FXX,TPT1051Q-SO1R-S,TPT774X,TPL803133Q-EV1R-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,LM2903A-SO1R-S,TPT1051VQ-SO1R-S,TPR3330-S3TR-S,TPT7741F-SO3R-S,TPL803133Q-ST4R-S,TPT7741F-SOBR-S,TPL803450Q,TPL803450Q-EV1R-S,TPR3312-S3TR-S,TPL803150Q-ST4R-S,TPL905218-S5TR-S,TPL905233-S5TR-S,TPT7720-SO1R-S,TPR6040F25-S3TR-S,TPT1043Q-DFKR-S,TPL905215-S5TR-S,TPR6040F20-S3TR-S,TPL8651Q-ES1R-S,LM2901A-SO2R-S,TPT1145NQ-SO2R-S,TPL9052XX,TPL8031XXQ,TPA2644-SO2R-S,LM2904A-TS1R-S,TPM650XAQ,TPL8151ADQ-ES1R-S,TPL865XQ,TPT772X,TPT1042Q-DF6R-S,TPT7721-SOBR-S,TPT1044V-SO1R-S,TPT1145Q-SO2R-S,TPR3325-S3TR-S,TPR431B-S3TR-S,TPR6040F50-S3TR-S,TPW3188Q,TPT7742F-SOBR-S,TPA1882Q-VR-S,TPR3320-S3TR-S,TPL910ADJQ,TPT7740F-SO3R-S,TPC5120Q-TS7R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPV8368SAQ,TPA1882Q-SO1R-S,TP1561AL1-S5TR-S,TPA5561Q-S5TR-S,TPL905225-S5TR-S,TPL905228-S5TR-S,TPT7741-SSAR-S,TPL8151ADQ,LM2902A-SO2R-S,TP2261L1-S5TR-S,TPA2031Q-S5TR-S,TPM2025Q,TPL803150Q-EV1R-S,TPM27524Q-DF4R-S,LM2903A-TS1R-S,TPV8368SAQ-S6TR-S,TPT1145NQ,TP1562AL1-VS1R-S,TPL803133-ST4R-S,TPT104XQ,TPR3333-S3TR-S,TPT1042VQ-SO1R-S,TPL905230-S5TR-S,LM2903A-VS1R-S,TPM27524Q-EV1R-S,TPR6040F40-S3TR-S,TPM27524Q,TPT7721-SO1R-S,LM2901A-TS2R-S,TPM6501AQ-S5TR-S,TPL905212-S5TR-S,TPT7720F-SO1R-S,TPA188XQ,TPT1145NQ-DFKR-S,TPR431B,TPM6505AQ-S6TR-S,TPT7741-SOBR-S,TPA5561Q,TPT1051VQ,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,LM2904A-SO1R-S,TPW3188Q-TS3R-S,TPC5120Q,LM2903DQ,TPR3340-S3TR-S

选型指南 - 思瑞浦 - Rev.2 - 2023/9/22 PDF 英文下载