PGA870 高速全差动可编程增益放大器

The PGA870 is a wideband programmable-gain amplifier (PGA) for high-speed signal chain and data acquisition systems. The PGA870 has been optimized to provide high bandwidth, low distortion, and low noise, making it ideally suited as a 14-bit analog-to-digital converter (ADC) driver for wireless base station signal chain applications. The wide gain range of –11.5 dB to +20 dB can be adjusted in 0.5-dB gain steps through a 6-bit control word applied to the parallel interface. The gain control interface may be configured as a level-triggered latch or an edge-triggered latch, or it may be placed in an unlatched (transparent) mode. In addition to the 6-bit gain control, the PGA870 contains a power-down pin (PD) that can be used to put the device into a low-current, power-down mode.


PGA870
-3dB Bandwidth(Typ)(MHz) 650  
0.1 dB BW Flatness(MHz) 100  
Slew Rate(Typ)(V/us) 2900  
Noise Figure(Typ)(dB) 13  
OIP3(Typ)(dBm) 47  
IMD3(Typ)(dBc) 98  
2nd Harmonic(dBc) 93  
3rd Harmonic(dBc) 88  
@ MHz 100  
Number of Channels 1  
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) 20  
Rise Time(Typ)(ns) 0.55  
Fall Time(Typ)(ns) 0.55  
Gain Control Digital  
Gain Range(Typ)(dB) 31.5  
Gain(Min)(dB) -11.5  
Gain(Max)(dB) 20  
Gain Step(Typ)(dB) 0.5  
Gain Error (Absolute)(Typ)(dB) +/-0.05  
Vs(Min)(V) 4.75  
Vs(Max)(V) 5.25  
Iq per channel(Max)(mA) 143  
Pin/Package 28VQFN
PGA870 特性
PGA870 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
PGA870IRHDR ACTIVE -40 to 85 4.35 | 1ku VQFN (RHD) | 28 3000 | LARGE T&R  
PGA870IRHDT ACTIVE -40 to 85 5.00 | 1ku VQFN (RHD) | 28 250 | SMALL T&R  
PGA870 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
PGA870IRHDR Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM PGA870IRHDR PGA870IRHDR
PGA870IRHDT Green (RoHS & no Sb/Br)  CU NIPDAU  Level-1-260C-UNLIM PGA870IRHDT PGA870IRHDT
PGA870 应用技术支持与电子电路设计开发资源下载
  1. PGA870 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 高速数据转换 (PDF 1967 KB)
  5. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
  6. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
  7. 运算放大器的单电源操作 (PDF 2174 KB)
  8. Tuning in Amplifiers (PDF 44 KB)
  9. Op Amp Performance Analysis (PDF 76 KB)
  10. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
  11. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
  12. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
PGA870 工具与软件
培训内容 型号 软件/工具类型
PGA870EVM 评估模块 PGA870EVM 开发电路板/EVM