AD9748ACPZ

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AD9748ACPZ

IC DAC 8BIT A-OUT 32LFCSP

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規格

Supplier Analog Devices Inc.
Package Tray
Series TxDAC®
ProductStatus Active
NumberofBits 8
NumberofD/AConverters 1
SettlingTime 11ns (Typ)
OutputType Current - Unbuffered
DifferentialOutput Yes
DataInterface Parallel
ReferenceType External, Internal
Voltage-SupplyAnalog 2.7V ~ 3.6V
Voltage-SupplyDigital 2.7V ~ 3.6V
INL/DNL(LSB) ±0.1, ±0.1
Architecture Current Source
OperatingTemperature -40°C ~ 85°C
Package/Case 32-WFQFN Exposed Pad, CSP
SupplierDevicePackage 32-LFCSP-WQ (5x5)

概述

Description

AD9748ACPZ is Analog Devices’ 14‑bit, high‑speed digital‑to‑analog converter (DAC) in the ACPZ package. It is a current‑output DAC designed for fast update rates, low glitch energy, and monotonic 14‑bit performance over temperature. The device supports flexible digital interfaces (SPI‑like serial or parallel input) and requires an external I/V stage (op‑amp) to produce a usable voltage output. Typical applications include RF/communications, waveform generation, test and instrumentation, and other high‑speed data‑conversion tasks. Key takeaways: 14‑bit resolution, high update rate, programmable full‑scale current, and wide operating temperature range, with robust accuracy and stability. For exact electrical specifications, interface details, and recommended usage, refer to the AD9748ACPZ datasheet and evaluation resources.

Features

Here are the typical features of the AD9748ACPZ (high-level, from the datasheet):
- 14-bit resolution
- Quad (four-channel) current-output DAC
- High-speed operation: up to about 200–210 MSPS data rate
- Serial (SPI-like) and parallel data input interfaces
- External or internal reference option
- On-chip output buffers and matched full-scale current (Iout) for mono-compatible outputs
- Low glitch energy with good SFDR for high-speed/DDS applications
- Flexible update modes (simultaneous/independent channel updates)
- Separate analog/digital supply options; single-supply compatibility (typical 3.3 V)
- Temperature range typically -40 °C to +85 °C (industrial)
- Packaging: ACPZ (LFCSP-28) RoHS-compliant
Note: Exact specs can vary by revision and variant; consult the official datasheet for precise electrical limits and pinout.

Package

AD9748ACPZ uses a 28‑lead LFCSP (Lead Frame Chip Scale Package); RoHS‑compliant.

Pinout

- Pin count: 28 pins
- Function: 8-channel, 14-bit multiplying digital-to-analog converter (DAC) with a serial (SPI-compatible) input. It provides eight current-output DACs (Iout1–Iout8) that are externally converted to voltage, using an external reference for multiplying DAC operation.

Manufacturer

- Manufacturer: Analog Devices, Inc. (ADI)
- What kind of company: An American multinational semiconductor company that designs and manufactures high-performance analog, mixed-signal, and DSP integrated circuits (e.g., data converters, amplifiers, RF, sensor interfaces).

Application

AD9748ACPZ is a high-performance DAC. Typical application areas:
- High-speed RF/communications front ends
- Signal generation and waveform synthesis in test equipment
- Video processing and display systems
- Instrumentation and data acquisition systems
- Medical imaging front ends (e.g., ultrasound/imaging OEMs)
- Radar/sonar signal reconstruction
- Lab/function generators and other precision analog outputs

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