AD420ARZ-32

Semiconductors - ICs

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Series Information for AD420ARZ-32 - Analog Devices

Features

  • feature
    4 mAu201320 mA, 0 mAu201320 mA or 0 mAu201324 mA current output 16-bit resolution and monotonicity u00b10.012% max integral nonlinearity u00b10.05% max offset (trimmable) u00b10.15% max total output error (trimmable) Flexible serial digital interface (3.3 MBPS) On-Chip loop fault detection On-chip 5 V reference (25 ppm/u00b0C max) Asynchronous CLEAR function Maximum power supply range of 32 V Output loop compliance of 0 V to VCC u2212 2.75 V 24-Lead SOIC and PDIP packages

Description

IC 16BIT DAC 400SPS SOIC24

The AD420 is a complete digital to current loop output converter, designed to meet the needs of the industrial control market. It provides a high precision, fully integrated, low cost single-chip solution for generating current loop signals in a compact 24-lead SOIC or PDIP package. The output current range can be programmed to 4 mA to 20 mA, 0 mA to 20 mA or to an overrange function of 0 mA to 24 mA. The AD420 can alternatively provide a voltage output from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with the addition of a single external buffer amplifier. The 3.3 M Baud serial input logic design minimizes the cost of galvanic isolation and allows for simple connection to commonly used microprocessors. It can be used in 3-wire or asynchronous mode and a serial-out pin is provided to allow daisy chaining of multiple DACs on the current loop side of the isolation barrier. The AD420 uses sigma-delta (Σ-Δ) DAC technology to achieve 16-bit monotonicity at very low cost. Full-scale settling to 0.1% occurs within 3 ms. The only external components that are required (in addition to normal transient protection circuitry) are two low cost capacitors which are used in the DAC out- put filter. If the AD420 is used at extreme temperatures and supply voltages, an external output transistor can be used to minimize power dissipation on the chip via the BOOST pin. The FAULT DETECT pin signals when an open circuit occurs in the loop. The on-chip voltage reference can be used to supply a precision +5 V to external components in addition to the AD420 or, if the user desires temperature stability exceeding 25 ppm/°C, an external precision reference such as the AD586 can be used as the reference. The AD420 is available in a 24-lead SOIC and PDIP over the industrial temperature range of −40°C to +85°C.

Specifications

Resolution (Bits):
16bit
Sampling Rate:
400SPS
Input Channel Type:
Serial
Supply Voltage Range:
12V to 32V
ADC / DAC Case Style:
SOIC
No. of Pins:
24Pins
Data Interface:
SPI
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
AD420 Series
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
A/D / D/A Features:
Internal Reference Latches Microprocessor Compatible
Base Number:
420
Conversion Time:
3µs
IC Case Style:
SOIC
IC Generic Number:
420
IC Temperature Range:
Commercial
Linearity Error:
0.012%
Logic Function Number:
420
No. of Bits:
16bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Output Type:
Current
Power Dissipation Ptot Max:
120mW
Settling Time:
3ms
Supply Current:
4.2mA
Supply Voltage Max:
32V
Supply Voltage Min:
12V
Termination Type:
Surface Mount Device

Alternate Descriptions

RS Components
DAC Serial Input 16-Bit 4-20mA SOIC24
Transfer Multisort Elektronik
D/A converter; 16bit; Channels:1; 12÷32V; SO24-W; 3.3Mbps
Richardson RFPD
CONVERTER - DAC
RS Components UK
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components DE
16 Bit-Bit D/A-Wandler, AD420ARZ-32 400sps, SPI, SOIC 24-Pin Digital Interface Typ : Seriell (SPI) Montage-Typ : SMD Stromversorgungs-Typ : Single Versorgungsspannung einzeln typ. : 32V Referenzspannung : Extern Architektur : Delta Sigma Rücksetzzeit max. : 3ns Ausgangspolarität : Bipolar Abmessungen : 15.6 x 7.6 x 2.65mm, Analog Devices
RS Components HK
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components JP
半導体,DAC,16-Bit
RS Components FR
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components CN
数字模拟转换器串行输入 16-Bit
RS Components ES
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components NL
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components NO
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components SG
DAC Serial Input 16-Bit 4-20mA SOIC24
RS Components TW
DAC Serial Input 16-Bit 4-20mA SOIC24