DAC, 12BIT, SSOP-20, -40 TO 85DEG C ROHS COMPLIANT: YES

The ADA4945-1 is a low noise, low distortion, fully differential amplifier with two selectable power modes. The device operates over a broad power supply range of 3 V to 10 V. The low dc offset, dc offset drift, and excellent dynamic performance of the ADA4945-1 makes it well suited for a variety of data acquisition and signal processing applications. The device is an ideal choice for driving high resolution, high performance successive approximation register (SAR) and Σ-Δ analog-to-digital converters (ADCs) on 4 mA of quiescent current (full power mode). The device can also be selected to operate on 1.4 mA of quiescent current (low power mode) to scale the power consumption to the desired performance necessary for an ADC drive application. The adjustable common-mode voltage allows the ADA4945-1 to match the input common-mode voltage of multiple ADCs. The internal common-mode feedback loop provides exceptional output balance, as well as suppression of even order harmonic distortion products.With the ADA4945-1, differential gain configurations are achieved with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier. The ADA4945-1 is fabricated using Analog Devices, Inc., proprietary, silicon germanium (SiGe), complementary bipolar process, enabling the device to achieve low levels of distortion with an input voltage noise of only 1.8 nV/√Hz (full power mode).The ADA4945-1 is available in a RoHS-complaint, 3 mm × 3 mm, 16-lead LFCSP. The ADA4945-1 is specified to operate from −40°C to +125°C.Applications Low power Σ-Δ, PulSAR®, and SAR ADC drivers Single-ended to differential converters Differential buffers Medical imaging Process control Portable electronics

+3.3 V/+5 V Multiplying 12-Bit DAC With a Parallel Interface Features: 12-Bit Multiplying DACs 0.5 LSBs INL and DNL Fast Interface: 40 ns Strobe Pulsewidth (AD7943) 40 ns Write Pulsewidth (AD7945, A7948) Guaranteed Specifications wth +3.3 V/+5 Supply Low Power: 5 µW typ Low Glitch: 60 nV-s with Amplifier Connected Fast Settling: 600 ns to 0.01% with AD843

ADI

Data Conversion IC Development Tools LTC2185 and LTC6409 Combo Board with differential inputs, req DC890, LVDS_XFMR and DC1075

Multi-Paired Cables 28AWG 4PR FOILBRAID 1000 FT SPOOL SLATE

Multi-Paired Cables 28AWG 4PR FOILBRAID 100 FT SPOOL SLATE

Sensor PIR (Passive Infrared) 472" (12m) 39.4' Polyethylene, White Lens

Connector Header Through Hole, Right Angle 10 position 0.100" (2.54mm)

21 Position FFC, FPC Connector Contacts, Vertical - 1 Sided 0.020" (0.50mm) Surface Mount