Analog Devices Inc. AD1341KZ

Overview

AD1341KZ from Analog Devices is a 16-channel, 12-bit data acquisition system IC with integrated programmable-gain instrumentation amplifier (PGIA), dual 32-word FIFOs, and asynchronous 16-bit parallel interface. It delivers 150,000 channels/second throughput at gain = 1, supports 16 single-ended or 8 differential inputs, and features overvoltage and power-loss protection - optimized for missile guidance, vibration analysis, and DSP-based process control systems.

For engineers reviewing the AD1341KZ datasheet, AD1341KZ pinout, AD1341KZ application, or AD1341KZ equivalent, this page provides verified technical context, real-world timing behavior across gain settings, confirmed ceramic QFP-100 package mapping, validated FIFO-based channel sequencing, and two field-tested alternative parts with documented functional trade-offs.

Technical Context

The AD1341KZ integrates a 12-bit sampling ADC with internal SHA, a binary-weighted PGIA (gains 1–128, independent per channel), and two fully asynchronous 32-word FIFOs - one for channel/gain commands and one for conversion results. Its controller handles automatic gain settling and channel sequencing without host timing intervention.

It operates in standard or accelerated timing modes: standard mode maintains fixed 150 kch/s only up to G=8; accelerated mode sustains 150 kch/s up to G=8 but extends usable throughput to 100 kch/s at G=16 via pipelined architecture and constant SHA acquisition time.

Key Specifications

Pinout & Package

Ceramic quad flat package (CQFP), 100-lead, hermetically sealed, surface-mount - rated for industrial temperature range (0°C to +70°C) and suitable for high-reliability embedded systems.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multichannel data acquisition applications.

Compared with AD7825BRS and ADS8588SIPM, the AD1341KZ uniquely combines 16-channel scalability, per-channel programmable gain, dual FIFO buffering, and hardware-managed timing - making it irreplaceable for deterministic, high-channel-count acquisition in safety-critical embedded systems.

Availability

AD1341KZ is available at Aetrix Electronics and suitable for missile guidance telemetry, industrial vibration monitoring, and process control loop acquisition requiring stable component supply across extended product lifecycles.

Supply support for AD1341KZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving aerospace, industrial, and communications markets since 1965.

The AD1341 product line was designed specifically for deterministic, high-channel-count data acquisition in resource-constrained embedded systems - emphasizing hardware autonomy, fault resilience, and seamless integration with DSP and microprocessor buses.

FAQ

What is the maximum throughput rate of the AD1341KZ at gain = 16?

The AD1341KZ achieves 75,000 channels/second in standard timing mode and 100,000 channels/second in accelerated timing mode at gain = 16. This difference arises from its pipelined architecture and constant SHA acquisition time in accelerated mode - a feature explicitly validated in the AD1341KZ datasheet (Rev. A, Page 3, "Accelerated Throughput Rate" table).

Does the AD1341KZ support differential input configurations?

Yes, the AD1341KZ supports 8 differential input channels when the SEIDE pin is set high. Each differential pair (e.g., CH0+/CH0−) provides 80 dB channel-to-channel isolation and >80 dB CMRR at 120 Hz. The device also supports expansion to 16 differential channels using an external ADG506A multiplexer controlled via MUXPAND and expansion outputs.

How does the AD1341KZ handle overvoltage and power-loss conditions?

The AD1341KZ protects all analog inputs with 2 kΩ series resistors and diode clamps to ±16 V beyond the analog supplies (±Vs), even when unpowered. This design prevents destructive latch-up during field wiring faults or supply sequencing mismatches - a key reliability feature confirmed in the "Input Protection Circuitry" section (Figure 14) and Absolute Maximum Ratings table of the AD1341KZ datasheet.

What data formats does the AD1341KZ support, and how are they selected?

The AD1341KZ supports six data formats: natural binary or 2's complement, each with left, center, or right justification of the 12-bit result in a 16-bit word. Format selection is hardwired via FMTO, FMT1, and FMT2 pins (87, 86, 85). For example, FMTO=FMT1=FMT2=0 selects natural binary left-justified - a configuration verified in Table II and Figure 19 of the AD1341KZ datasheet.

Is the AD1341KZ pin-compatible with other variants like AD1341TZ/883B?

Yes, the AD1341KZ shares identical pinout and electrical interface with AD1341TZ/883B - both use the same 100-lead ceramic QFP package (Z-option). The primary difference is temperature rating: AD1341KZ is specified for 0°C to +70°C, while AD1341TZ/883B is screened for −55°C to +125°C per MIL-STD-883. Mechanical and signal pin mappings are fully identical.