ADA4938-1ACPZ-RL:  差分放大器LFCSP-16封装

The ADA4938 is a low noise, ultralow distortion, high speed differential amplifier. It is an ideal choice for driving high performance ADCs with resolutions up to 16 bits from dc to 27 MHz, or up to 12 bits from dc to 74 MHz. The output common-mode voltage is adjustable over a wide range, allowing the ADA4938 to match the input of the ADC. The internal common-mode feedback loop also provides exceptional output balance as well as suppression of even-order harmonic distortion products.

Full differential and single-ended-to-differential gain configurations are easily realized with the ADA4938. A simple external feedback network of four resistors determines the closed-loop gain of the amplifier.

The ADA4938 is fabricated using the Analog Devices, Inc. proprietary third-generation, high voltage XFCB process, enabling it to achieve very low levels of distortion with an input voltage noise of only 2.6 nV/√Hz. The low dc offset and excellent dynamic performance of the ADA4938 make it well suited for a wide variety of data acquisition and signal processing applications.

The ADA4938-1 (single amplifier) is available in a Pb-free, 3 mm × 3 mm, 16-lead LFCSP. The ADA4938-2 (dual amplifier) is available in a Pb-free, 4 mm × 4 mm, 24-lead LFCSP. The pinouts have been optimized to facilitate layout and minimize distortion. The parts are specified to operate over the extended industrial temperature range of −40°C to +85°C.

ADA4938-1ACPZ-RL 应用
ADA4938-1ACPZ-RL 特点
ADA4938-1ACPZ-RL 功能框图

ADA4938-1 功能框图

芯片引脚定义图

ADA4938-1ACPZ-RL 技术指标
-3 dB BW (MHz) 1000MHz Distortion (2nd) (dBc) -82dBc
Minimum Gain (Acl) 1 Distortion (3rd) (dBc) -82dBc
Slew Rate (V/us) 4700V/µs Package 16-Lead LFCSP,24-Lead LFCSP
Supply Current 40mA    
ADA4938-1 订购指南
产品型号 产品状态 封装 引脚 温度范围
ADA4938-1ACPZ-R2 量产 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 工业
ADA4938-1ACPZ-R7 量产 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 工业
ADA4938-1ACPZ-RL 量产 16 ld LFCSP (3x3mm, 1.3mm exposed pad) 16 工业

EVAL-ADDIFFAMP: Differential Driver Evaluation Boards

产品型号 产品状态 封装 引脚 温度范围
EVAL-ADDIFAMP-1CPZ 量产 评估板   商业
EVAL-ADDIFAMP-2CPZ 量产 评估板   商业
EVAL-ADDIFFAMP-1RZ 量产 评估板   商业
EVAL-ADDIFFAMP-CPZ 量产 评估板   商业
EVAL-ADDIFFAMP-RMZ 量产 评估板   商业

EVAL-ADDIFFRX: Differential Receiver Evaluation Boards

产品型号 产品状态 封装 引脚 温度范围
EVAL-ADDIFFRX-1RMZ 量产 评估板   商业
EVAL-ADDIFFRX-1RZ 量产 评估板   商业
ADA4938-1ACPZ-RL 应用技术支持与电子电路设计开发资源下载
  1. 差分放大器系列ADA4938-1 数据手册DataSheet 下载 . pdf
  2. ADI 模拟器件公司比较器产品选型指南 . pdf
  3. Analog Devices, Inc. 美国模拟器件公司产品订购手册 .pdf