My Inquiry
My Account
Analog Devices Inc. LTC1606AISW#PBF
- Part No.:
- LTC1606AISW#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LTC1606AISW#PBF.pdf
- Description:
- IC ADC 16BIT SAR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,235
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1606AISW#PBF from Analog Devices (formerly Linear Technology) is a 16-bit, 250ksps successive approximation ADC with ±10V bipolar input range, internal 2.5V reference and 4.096V buffered CAP output, operating from a single 5V supply. It delivers ±2.0LSB max INL, 90dB typical SINAD, and guaranteed no missing codes across –40°C to +85°C - deployed in industrial data acquisition and precision digital signal processing systems.
For engineers reviewing the LTC1606AISW#PBF datasheet, LTC1606AISW#PBF pinout, LTC1606AISW#PBF application, or LTC1606AISW#PBF equivalent, key selection criteria include its 2.5µs conversion time, 0.65LSB RMS transition noise, microprocessor-compatible 16-bit parallel interface with BYTE-selectable byte ordering, and dual analog/digital ground separation for high-precision DC and AC performance.
Technical Context
The LTC1606AISW#PBF implements a switched-capacitor SAR architecture with integrated sample-and-hold, factory-trimmed bandgap reference, and internal synchronized clock - eliminating external timing components. Its 16-bit capacitive DAC and auto-zero comparator enable precise two's complement digitization of ±10V inputs without external calibration.
It supports dual operation modes: R/C-triggered conversion with CS held low, or CS-triggered conversion with R/C pre-asserted. BUSY signaling and three-state outputs (D15–D0) simplify interfacing to FIFOs, DSPs, and microprocessors while maintaining isolation between analog and digital domains via separate AGND1/AGND2 and DGND pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 distinct output codes with guaranteed no missing codes over temperature. |
| Sampling Rate | 250ksps - enables real-time capture of signals up to 125kHz Nyquist bandwidth. |
| Input Range | ±10V bipolar - compatible with standard industrial sensor outputs and PLC-level signal conditioning. |
| SINAD / SNR | 90dB typical - ensures >14.7 effective bits at 1kHz, critical for high-fidelity measurement systems. |
| Integral Nonlinearity | ±2.0LSB max - maintains monotonicity and accuracy across full temperature range (–40°C to +85°C). |
| Power Dissipation | 75mW typical at 5V - enables dense mixed-signal board layouts without thermal derating concerns. |
| Conversion Time | 2.5µs - defines minimum inter-conversion interval of 4µs, supporting deterministic timing control. |
| Reference Options | Internal 2.5V ±5ppm/°C or external 2.3V–2.7V - allows trade-off between simplicity and long-term stability. |
Pinout & Package
Package: 28-lead plastic SO (Wide, 0.300") - RoHS-compliant, lead-free (PBF), suitable for automated SMT assembly and industrial thermal cycling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1) | Analog Input | ±10V differential input node; protected to ±25V; requires 200Ω series resistor per layout guidelines. |
| AGND1 (2), AGND2 (5) | Analog Ground | Separate return paths for reference and input circuitry; must tie to low-impedance analog ground plane. |
| REF (3) | 2.5V Reference Output | Factory-trimmed bandgap source; bypass with 2.2µF tantalum; can be overdriven by external reference. |
| CAP (4) | 4.096V Buffered Reference | 1.64× amplified REF output; drives internal DAC; bypass with 10µF tantalum; <2mA DC load only. |
| D15–D0 (6–13, 15–22) | Three-State Data Outputs | 16-bit parallel bus; MSB/LSB order configurable via BYTE pin; Hi-Z when CS high or R/C low. |
| BYTE (23) | Byte Ordering Control | Selects MSB-first (BYTE = low) or LSB-first (BYTE = high) byte sequencing on D15–D0 pins. |
| R/C (24) | Read/Convert Input | Falling edge initiates conversion when CS is low; rising edge enables data output after conversion. |
| CS (25) | Chip Select | Active-low enable; OR'd with R/C; falling edge triggers conversion or data read depending on R/C state. |
| BUSY (26) | Conversion Status Flag | Active-low open-drain output; goes high at end of conversion; rising edge indicates valid data. |
| VANA (27), VDIG (28) | Analog/Digital Supplies | Both require 4.75V–5.25V; VDIG tied directly to VANA; decoupled with 0.1µF ceramic + 10µF tantalum. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Precision Reference | 2.500V ±0.2% initial accuracy, ±5ppm/°C tempco - eliminates need for external reference IC in most applications. |
| Low Transition Noise | 0.65LSB RMS - reduces histogram spread and improves repeatability in DC-critical measurements. |
| Overvoltage Protected Input | Withstands ±25V on VIN - prevents latch-up during sensor fault conditions or hot-plug events. |
| Two-Mode Digital Interface | Supports both R/C-initiated and CS-initiated timing - simplifies integration with diverse host controllers. |
| Separate Analog/Digital Grounds | Dedicated AGND1, AGND2, and DGND pins - enables star-grounding strategy to minimize ground bounce. |
| Factory-Trimmed DC Accuracy | ±2.0LSB INL, ±10mV bipolar zero error - meets Class A instrumentation requirements without field calibration. |
Applications
| Industrial Process Monitoring | High-Speed PC-Based DAQ |
|---|---|
|
Use Scenario: Continuous monitoring of pressure, temperature, and flow transducers in chemical plants and refineries. IC Role / Device Role / Timing Role: Primary 16-bit digitizer capturing ±10V sensor outputs at 250ksps with deterministic BUSY-driven handshaking. Use Value: Guaranteed no missing codes and ±2.0LSB INL ensure traceable metrology-grade data integrity over extended temperature ranges. |
Use Scenario: Real-time waveform capture and spectral analysis in lab-grade oscilloscope and spectrum analyzer add-on cards. IC Role / Device Role / Timing Role: High-SINAD front-end ADC feeding FPGA or DSP with parallel 16-bit bus and BYTE-selectable data alignment. Use Value: 90dB SINAD and 0.65LSB transition noise preserve signal fidelity for FFT-based frequency-domain analysis. |
| Multiplexed Sensor Systems | Digital Signal Processing Front-End |
|
Use Scenario: Scanning arrays of thermocouples, strain gauges, and RTDs in automated test equipment (ATE) racks. IC Role / Device Role / Timing Role: Centralized sampling node with external multiplexer control synchronized to R/C and BUSY signals. Use Value: 2.5µs conversion time and 4µs minimum inter-conversion interval enable tight channel-to-channel timing alignment. |
Use Scenario: Digitizing analog feedback signals in closed-loop motor control and power converter systems. IC Role / Device Role / Timing Role: Precision analog-to-digital interface feeding real-time PID or observer algorithms in embedded DSPs. Use Value: Internal 2.5V reference and 4.096V CAP buffer provide stable scaling for consistent gain calibration across production units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7805U | 16-bit, 100ksps, ±10V input, external reference required; no internal CAP buffer or BYTE control. | Lacks integrated reference and flexible byte ordering; requires external 2.5V ref and additional decoupling. | Choose when lower throughput suffices and system already provides precision reference infrastructure. |
| AD976ARZ | 16-bit, 200ksps, ±10V input, internal reference, but uses serial SPI interface instead of parallel bus. | Requires software-managed SPI framing and lacks hardware BUSY/R/C handshake for deterministic timing. | Prefer when board space is constrained and microcontroller has dedicated SPI peripherals with DMA support. |
Compared with ADS7805U and AD976ARZ, the LTC1606AISW#PBF uniquely combines 250ksps parallel throughput, integrated dual-reference architecture, and hardware-controlled timing - reducing BOM count and firmware overhead in high-channel-count industrial DAQ designs.
Availability
LTC1606AISW#PBF is available at Aetrix Electronics and suitable for industrial process control, high-speed PC-based data acquisition, multiplexed sensor systems, and digital signal processing front-end applications requiring stable component supply and long-term manufacturability.
Supply support for LTC1606AISW#PBF 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. (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC1606AISW#PBF belongs to Linear Technology's precision data acquisition product line, designed specifically for high-resolution, low-power, single-supply industrial measurement systems where DC accuracy and AC performance must coexist.
FAQ
What is the operating temperature range for the LTC1606AISW#PBF?
The LTC1606AISW#PBF is rated for –40°C to +85°C ambient operation (industrial grade). All key specifications - including ±2.0LSB INL, 90dB SINAD, and no missing codes - are guaranteed across this full range, making it suitable for harsh environments like factory floors and outdoor instrumentation enclosures.
Does the LTC1606AISW#PBF require an external clock source?
No, the LTC1606AISW#PBF includes a fully trimmed internal clock that delivers a typical 2.5µs conversion time and supports 250ksps sampling without any external timing components. This simplifies PCB layout and eliminates clock jitter sensitivity inherent in externally clocked ADCs.
How does the BYTE pin affect data output on the LTC1606AISW#PBF?
The BYTE pin on the LTC1606AISW#PBF selects byte ordering: when LOW, D15–D8 output the MSB byte and D7–D0 output the LSB byte; when HIGH, D15–D8 output the LSB byte and D7–D0 output the MSB byte. This enables seamless compatibility with both big-endian and little-endian microprocessor buses.
Can the LTC1606AISW#PBF operate with an external reference voltage?
Yes, the LTC1606AISW#PBF accepts an external reference between 2.3V and 2.7V applied to the REF pin. When used, the internal reference is disabled, and the full-scale range becomes ±4×VREF. This allows improved temperature stability using ultra-low-drift references like LT1461 or ADR4525.
What is the purpose of the CAP pin on the LTC1606AISW#PBF?
The CAP pin on the LTC1606AISW#PBF provides a buffered 4.096V output (1.64× REF) that drives the internal DAC array. It must be bypassed with a 10µF tantalum capacitor and supports ≤2mA DC load. Driving AC loads or exceeding this current degrades AC performance and is not recommended.
LTC1606AISW#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1606AISW#PBF FAQ
1.How can I place an order for LTC1606AISW#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1606AISW#PBF 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 LTC1606AISW#PBF reliable?
The price and inventory of LTC1606AISW#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1606AISW#PBF is usually 5 days.
3.What payment methods are accepted for LTC1606AISW#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1606AISW#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1606AISW#PBF?
LTC1606AISW#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1606AISW#PBF 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 LTC1606AISW#PBF?
For technical support, including LTC1606AISW#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1606AISW#PBF requirements.
6.How does Aetrix verify that LTC1606AISW#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1606AISW#PBF 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 LTC1606AISW#PBF meets industry standards.
7.What is the process for return or replacement of LTC1606AISW#PBF?
All LTC1606AISW#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1606AISW#PBF, 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 LTC1606AISW#PBF part is unused and in its original packaging.
Return procedure for LTC1606AISW#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1606AISW#PBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
