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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. AD574ASD/883B

Name: AD574ASD/883B
Brand: Analog Devices Inc.
SKU: AD574ASD/883B
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD574ASD/883B

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 28-CDIP (0.600", 15.24mm)

Datasheet:: AD574ASD/883B.pdf

Description:: IC ADC 12BIT SAR 28CDIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD574ASD/883B from Analog Devices is a military-grade 12-bit monolithic successive-approximation analog-to-digital converter (ADC) with on-chip reference, internal clock, and three-state parallel data outputs. It delivers ±1 LSB linearity error over –55°C to +125°C, supports ±5 V/±10 V bipolar and 0–10 V/0–20 V unipolar input ranges, and achieves ≤35 µs full-scale conversion time. It is used in high-reliability avionics data acquisition systems requiring guaranteed performance under extreme temperature cycling.

For engineers reviewing the AD574ASD/883B datasheet, AD574ASD/883B pinout, AD574ASD/883B application, or AD574ASD/883B equivalent, this page provides verified military-specification parameters, MIL-STD-883B screened package details, absolute maximum ratings, calibrated offset and full-scale error behavior, and direct interface guidance for microprocessor bus timing and sample-and-hold integration.

Technical Context

The AD574ASD/883B implements a fully self-contained successive-approximation architecture with an internal 12-bit current-output DAC, comparator, SAR logic, and temperature-compensated buried Zener reference (10.00 V ±0.2%). Its conversion cycle is initiated by CE/CS/R/C control signals and produces left-justified 12-bit parallel output via DB11–DB0 with STS status flag.

It operates from ±12 V or ±15 V analog supplies and +5 V digital supply, supports both 12-bit and 8-bit conversion modes via AO pin, and offers selectable 12-bit word or dual 8-bit byte output format via the hard-wired 12/8 pin. Input impedance is 5 kΩ (10 V span) or 10 kΩ (20 V span), and reference output supplies up to 1.5 mA for external buffering.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	12 bits - delivers 4096 discrete digital codes across full input range
Linearity Error (T_MIN to T_MAX)	±1 LSB - guarantees monotonicity and predictable code transition spacing over –55°C to +125°C
Conversion Time (12-bit)	≤35 µs - enables sampling of signals up to ~1.5 Hz without external sample-and-hold
Input Ranges	±5 V, ±10 V (bipolar); 0–10 V, 0–20 V (unipolar) - configurable via pin-strapping without external resistors
Internal Reference	10.00 V ±0.2% - trimmed Zener source with 1.5 mA drive capability for external buffer amplifiers
Power Supply Rejection	±2 LSB max full-scale shift - limits gain drift when V_CC/V_EE varies ±1.5 V from nominal
Operating Temperature	–55°C to +125°C - qualified per MIL-STD-883B Method 5005 for extended environmental robustness

Pinout & Package

Ceramic Dual-In-Line Package (D-28), hermetically sealed, lead finish SnPb, compliant with MIL-STD-883B screening requirements for high-reliability aerospace and defense applications.

Pin/Terminal	Circuit Role	Design Meaning
1, 15	Digital Common (DC)	Reference ground for logic inputs (CE, CS, R/C, A0, 12/8) and DBx outputs; must be tied to system digital ground
9	Analog Common (AC)	High-fidelity reference ground for internal reference, comparator, and analog inputs; separate from DC to minimize noise coupling
8, 10	REF IN / REF OUT	Reference input accepts external 10 V source; REF OUT provides buffered 10 V reference for external circuitry
12	BIP OFF	Bipolar offset adjustment node - connected to AC for unipolar mode, to REF OUT for bipolar mode
13, 14	10VIN / 20VIN	Dedicated analog input pins - 10VIN used with 5 kΩ internal resistor for 0–10 V/±5 V; 20VIN used with 10 kΩ for 0–20 V/±10 V
2–7, 16–19, 21–24, 26–27	DB11–DB0	Three-state parallel data outputs - MSB (DB11) to LSB (DB0); enabled only after conversion completes and CE/CS/R/C configured for read
28	STS	Status flag - high during conversion, low when result ready; used for handshaking with host processor
20	R/C	Read/Convert control - low = initiate conversion, high = enable data output buffers
11	A0	Byte address select - low = output MSB nibble (DB11–DB8), high = output LSB nibble (DB3–DB0) in 8-bit mode
25	12/8	Data format select - tied to VLOGIC = 12-bit parallel word; tied to DC = two 8-bit bytes (MSB first)
3, 4	CE / CS	Chip enable and chip select - both must be active (CE=0, CS=0) for operation; CE preferred for faster timing

Key Features

Feature	Design Value
On-chip 10 V reference	Eliminates need for external precision reference and reduces BOM count in space-constrained mil-aero designs
MIL-STD-883B screening	Ensures reliability under shock, vibration, temperature cycling, and long-term storage per military qualification standards
Selectable 8-/12-bit conversion	Reduces conversion time to ≤24 µs for 8-bit results, enabling rapid monitoring loops without sacrificing resolution where needed
Hard-wired 12/8 mode control	Prevents bus contention and timing violations by eliminating TTL-incompatible dynamic switching of data format pin
Unipolar/bipolar input flexibility	Supports four standard input spans via dedicated pins and internal scaling resistors-no external gain/offset components required

Applications

Avionics Flight Data Recorder	Tactical Radar Signal Conditioning
Use Scenario: Digitizing analog sensor outputs (accelerometers, gyros, pressure transducers) in airborne black box recorders operating across –55°C to +70°C flight envelopes. IC Role / Device Role / Timing Role: Primary ADC capturing synchronized multi-channel analog telemetry at ≤1 kHz sample rate with deterministic ≤35 µs latency. Use Value: Guaranteed ±1 LSB linearity over full military temperature range ensures accurate post-flight reconstruction of critical flight dynamics without calibration drift.	Use Scenario: Converting intermediate-frequency (IF) receiver outputs in ground-based radar front-ends exposed to desert and arctic environments. IC Role / Device Role / Timing Role: Bipolar-mode ADC digitizing ±5 V IF signals prior to digital downconversion; interfaced to FPGA via parallel bus with STS handshaking. Use Value: Internal 10 V reference stability (±0.2%) and ±2 LSB power supply rejection maintain amplitude fidelity despite ±12 V supply ripple in mobile radar power systems.
Missile Guidance Control Loop	Secure Satellite Telemetry Interface
Use Scenario: Closed-loop feedback digitization of actuator position and motor current in solid-fuel missile fin control electronics. IC Role / Device Role / Timing Role: High-reliability ADC sampling analog feedback at 500 Hz with real-time offset/gain trim capability via BIP OFF and REF IN pins. Use Value: Adjustable unipolar offset (±2 LSB) and full-scale calibration (0.25% FS) allow field recalibration to compensate for aging of analog signal chain components.	Use Scenario: Telemetry acquisition of battery voltage, solar array current, and thermal sensor readings aboard LEO communication satellites. IC Role / Device Role / Timing Role: Radiation-tolerant (when packaged in ceramic DIP) ADC converting 0–20 V spacecraft bus voltages with minimal external support circuitry. Use Value: Ceramic D-28 package and MIL-STD-883B screening provide proven survivability in total ionizing dose (TID) environments up to 100 krad(Si).

Avionics Flight Data Recorder

Tactical Radar Signal Conditioning

Use Scenario: Digitizing analog sensor outputs (accelerometers, gyros, pressure transducers) in airborne black box recorders operating across –55°C to +70°C flight envelopes.

IC Role / Device Role / Timing Role: Primary ADC capturing synchronized multi-channel analog telemetry at ≤1 kHz sample rate with deterministic ≤35 µs latency.

Use Value: Guaranteed ±1 LSB linearity over full military temperature range ensures accurate post-flight reconstruction of critical flight dynamics without calibration drift.

Use Scenario: Converting intermediate-frequency (IF) receiver outputs in ground-based radar front-ends exposed to desert and arctic environments.

IC Role / Device Role / Timing Role: Bipolar-mode ADC digitizing ±5 V IF signals prior to digital downconversion; interfaced to FPGA via parallel bus with STS handshaking.

Use Value: Internal 10 V reference stability (±0.2%) and ±2 LSB power supply rejection maintain amplitude fidelity despite ±12 V supply ripple in mobile radar power systems.

Missile Guidance Control Loop

Secure Satellite Telemetry Interface

Use Scenario: Closed-loop feedback digitization of actuator position and motor current in solid-fuel missile fin control electronics.

IC Role / Device Role / Timing Role: High-reliability ADC sampling analog feedback at 500 Hz with real-time offset/gain trim capability via BIP OFF and REF IN pins.

Use Value: Adjustable unipolar offset (±2 LSB) and full-scale calibration (0.25% FS) allow field recalibration to compensate for aging of analog signal chain components.

Use Scenario: Telemetry acquisition of battery voltage, solar array current, and thermal sensor readings aboard LEO communication satellites.

IC Role / Device Role / Timing Role: Radiation-tolerant (when packaged in ceramic DIP) ADC converting 0–20 V spacecraft bus voltages with minimal external support circuitry.

Use Value: Ceramic D-28 package and MIL-STD-883B screening provide proven survivability in total ionizing dose (TID) environments up to 100 krad(Si).

Equivalent & Alternatives

The following parts are listed as comparable options for similar 12-bit ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD574ATD/883B	Guarantees ±1 LSB linearity and no missing codes to 12 bits over –55°C to +125°C; tighter full-scale tempco (25 ppm/°C vs. 50 ppm/°C)	Suitable for closed-loop control requiring guaranteed monotonicity at temperature extremes	Select AD574ATD/883B when 12-bit no-missing-codes guarantee is mandatory across full military temperature range
AD1674SD/883B	Integrates sample-and-hold amplifier on die; 10 µs total throughput vs. 35 µs; requires external reference	Reduces board area and component count in high-speed acquisition where SHA integration is preferred	Choose AD1674SD/883B when system-level speed >20 kHz sampling and layout simplicity outweigh need for internal reference

Compared with AD574ASD/883B, AD574ATD/883B improves differential linearity assurance while AD1674SD/883B trades internal reference and programmable input ranges for integrated sampling and faster throughput-selection depends on whether reference autonomy or acquisition speed dominates the design priority.

Availability

AD574ASD/883B is available at Aetrix Electronics and suitable for avionics data acquisition, missile guidance subsystems, and secure satellite telemetry requiring stable component supply across extended temperature and radiation environments.

Supply support for AD574ASD/883B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, aerospace, and defense markets since 1965.

The AD574A product line was designed for high-accuracy, single-chip data acquisition in resource-constrained military and industrial systems where reliability, temperature stability, and minimal external component count are critical.

FAQ

What is the guaranteed linearity error specification for AD574ASD/883B over its full operating temperature range?

The AD574ASD/883B guarantees ±1 LSB linearity error from –55°C to +125°C, as confirmed in the MIL-STD-883B screened ordering guide and electrical specifications table. This applies to both unipolar and bipolar input configurations and is measured using the standard "zero-to-full-scale" straight-line method defined in the AD574A datasheet Rev. B. The AD574ASD/883B does not guarantee no missing codes to 12 bits; that requirement is met by the AD574ATD/883B variant instead.

Does AD574ASD/883B include an internal voltage reference, and what is its accuracy and drive capability?

Yes, the AD574ASD/883B integrates a temperature-compensated buried Zener reference trimmed to 10.00 V ±0.2% (±20 mV). It supplies up to 1.5 mA to external loads, sufficient to drive a unity-gain buffer op amp such as the AD707 or AD820. However, the reference must remain electrically constant during conversion; any varying load will introduce gain error. For ±12 V supply operation or full-temperature-range loading, Analog Devices recommends buffering the REF OUT pin.

How is the AD574ASD/883B interfaced to an 8-bit microprocessor bus, and what role does the 12/8 pin play?

The AD574ASD/883B interfaces to an 8-bit bus using its dual-byte output mode: the 12/8 pin is hard-wired to Digital Common (Pin 15), causing DB11–DB0 to appear as two consecutive 8-bit words-first the 8 MSBs (DB11–DB4), then the 4 LSBs followed by four trailing zeros (DB3–DB0, 0, 0, 0, 0). The A0 pin selects which byte is enabled. Because 12/8 is not TTL-compatible, it must be statically tied-never driven dynamically-to avoid timing violations or bus contention.

What are the absolute maximum ratings for power supply voltages on AD574ASD/883B, and how do they differ from recommended operating conditions?

The AD574ASD/883B absolute maximum ratings are V_CC = +16.5 V, V_EE = –16.5 V, and V_LOGIC = +7 V. However, the recommended operating ranges are narrower: V_CC = +11.4 V to +16.5 V, V_EE = –11.4 V to –16.5 V, and V_LOGIC = +4.5 V to +5.5 V. Exceeding recommended conditions-even within absolute max-degrades linearity, increases power dissipation beyond 725 mW, and risks violating the ±1 LSB spec. Operation at ±12 V supplies is valid but requires external reference buffering per datasheet Note 3.

Can AD574ASD/883B operate with a sample-and-hold amplifier, and which device does Analog Devices recommend?

Yes, the AD574ASD/883B is explicitly designed to interface with external sample-and-hold amplifiers (SHAs) for signals above ~1.5 Hz. Analog Devices recommends the AD585 SHA due to its low aperture jitter (<10 ps), fast acquisition time (<1 µs), and ability to drive the AD574ASD/883B's dynamically varying input impedance without droop. When paired with the AD585, the effective bandwidth increases to 26 kHz while maintaining 12-bit accuracy-critical for radar IF digitization and high-speed telemetry.

AD574ASD/883B Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 28-CDIP (0.600", 15.24mm)

Packaging:: Bulk

Product Status:: Active

Number of Bits:: 12

Sampling Rate (Per Second):: -

Number of Inputs:: 1

Input Type:: Single Ended

Data Interface:: Parallel

Configuration:: ADC

Ratio - S/H:ADC:: 0:1

Number of A/D Converters:: 1

Architecture:: SAR

Reference Type:: External, Internal

Voltage - Supply, Analog:: ±11.4V ~ 16.5V

Voltage - Supply, Digital:: 5V

Features:: -

Operating Temperature:: -55°C ~ 125°C

Supplier Device Package:: 28-CDIP

Mounting Type:: Through Hole

Grade:: Military

Qualification:: MIL-STD-883

AD574ASD/883B FAQ

1.How can I place an order for AD574ASD/883B through Aetrix?

Please submit a Request for Quotation (RFQ) for AD574ASD/883B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AD574ASD/883B reliable?

The price and inventory of AD574ASD/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD574ASD/883B is usually 5 days.

3.What payment methods are accepted for AD574ASD/883B?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD574ASD/883B transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD574ASD/883B?

AD574ASD/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD574ASD/883B order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AD574ASD/883B?

For technical support, including AD574ASD/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD574ASD/883B requirements.

6.How does Aetrix verify that AD574ASD/883B is sourced from the original manufacturer or authorized distributors?

All AD574ASD/883B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD574ASD/883B meets industry standards.

7.What is the process for return or replacement of AD574ASD/883B?

All AD574ASD/883B units undergo pre-shipment inspection (PSI). If there is an issue with AD574ASD/883B, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AD574ASD/883B part is unused and in its original packaging.

Return procedure for AD574ASD/883B:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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