PGA870IRHDR 供应商
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PGA870IRHDR
品牌：TI 封装/批号：原厂原装/22+ -
PGA870IRHDR
品牌：TI/德州仪器 封装/批号：VQFN28/21+ -
PGA870IRHDR
品牌：TI(德州仪器) 封装/批号：VQFN-28/2022+
PGA870IRHDR 属性参数
- 标准包装：3,000
- 类别：集成电路 (IC)
- 家庭：Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
- 系列：-
- 放大器类型：可编程增益
- 电路数：1
- 输出类型：-
- 转换速率：2900 V/µs
- 增益带宽积：-
- -3db带宽：650MHz
- 电流 - 输入偏压：-
- 电压 - 输入偏移：-
- 电流 - 电源：143mA
- 电流 - 输出 / 通道：50mA
- 电压 - 电源，单路/双路(±)：4.75 V ~ 5.25 V
- 工作温度：-40°C ~ 85°C
- 安装类型：表面贴装
- 封装/外壳：28-VFQFN 裸露焊盘
- 供应商设备封装：28-VQFN-EP（5x5）
- 包装：带卷 (TR)
产品特性
- Wideband +5-V Operation: 650-MHz Bandwidth
- Low Impedance, Voltage Mode Output
- Wide Gain Range: –11.5 dB to +20 dB
- Precise 0.5-dB Gain Steps Step-to-Step Gain Error = ±0.03 dB
- HD2: –93 dBc at 100 MHz
- HD3: –88 dBc at 100 MHz
- IMD3: –98 dBc at 100 MHz, –95 dBc at 200 MHz
- OIP3: +47 dBm at 100 MHz; Exceeds +45 dBm for Frequencies to 300 MHz
- Flexible Gain Control Interface: Supports latched and unlatched options Gain may be set in power-down state Fast setup and hold times: 2.5 ns
- Supports latched and unlatched options
- Gain may be set in power-down state
- Fast setup and hold times: 2.5 ns
- Low Disable Current: 2 mA
- Pb-Free (RoHS-Compliant) and Green Package
- APPLICATIONS
- Programmable Gain IF Amplifier: Differential signal chains Single-ended to differential conversion
- Differential signal chains
- Single-ended to differential conversion
- Fast Gain Control Loops for: Test/measurement Digital radio signal chains
- Test/measurement
- Digital radio signal chains
- ADC Driver for Wireless Base Station Signal Chains: GSM, WCDMA, MC-GSM
- Radar/Ranging Systems
产品概述
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. In this mode, the quiescent current drops to 2 mA, but the gain control circuitry remains active, allowing the gain of the PGA870 to be set before device power-up. The PGA870 is offered in a QFN-28 PowerPAD™ package.
PGA870IRHDR 电路图
