My Inquiry
My Account
Analog Devices Inc. LTC1606ISW#PBF
- Part No.:
- LTC1606ISW#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
LTC1606ISW#PBF.pdf
- Description:
- IC ADC 16BIT SAR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,686
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1606ISW#PBF from Analog Devices (acquired Linear Technology) is a 16-bit, 250ksps successive-approximation ADC operating from a single 5V supply. It features ±10V bipolar input range, internal 2.5V reference and 4.096V buffered CAP output, ±2.0LSB max INL, and 90dB typical SNR - deployed in industrial process control and high-speed PC-based data acquisition systems.
For engineers reviewing the LTC1606ISW#PBF datasheet, LTC1606ISW#PBF pinout, LTC1606ISW#PBF application, or LTC1606ISW#PBF equivalent, key selection criteria include guaranteed no missing codes over temperature, microprocessor-compatible 16-bit parallel interface with BUSY/CS/R/C control, and support for both internal and external reference configurations.
Technical Context
The LTC1606ISW#PBF implements a switched-capacitor SAR architecture with integrated sample-and-hold, precision bandgap reference, and factory-trimmed internal clock. Its analog front-end includes auto-zeroing switches and a 10kΩ input impedance, requiring low-impedance signal sources and careful decoupling of REF (2.2µF) and CAP (10µF) pins.
Digital interface supports two operational modes: R/C-triggered conversion with CS held low, or CS-triggered conversion with R/C pre-asserted. Output data is two's complement format, readable as 16-bit word or byte-swapped 8-bit pairs via BYTE pin control - enabling direct interfacing to FIFOs, DSPs, and 8-/16-bit microprocessors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 discrete output levels for high-fidelity analog measurement |
| Sampling Rate | 250ksps - enables real-time capture of signals up to 125kHz Nyquist bandwidth |
| Input Range | ±10V bipolar - matches standard industrial sensor outputs and PLC I/O ranges |
| Signal-to-Noise Ratio | 90dB typ - provides >14.9 effective bits (ENOB) at 1kHz input, exceeding competing 16-bit ADCs by 3dB |
| Integral Nonlinearity | ±2.0LSB max - ensures monotonicity and <0.003% full-scale error across –40°C to +85°C |
| Power Dissipation | 75mW typ - enables thermally constrained designs without active cooling |
| No Missing Codes | Guaranteed over full temperature range - eliminates code gaps critical for closed-loop control |
Pinout & Package
Package: 28-lead plastic SO (Wide, 0.300") - RoHS-compliant, lead-free (PBF), JEDEC MS-013AC compliant, θJA = 130°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1) | Analog Input | ±10V differential input node; protected to ±25V; requires 200Ω series resistor per layout guidance |
| AGND1 (2), AGND2 (5) | Analog Ground | Separate analog ground returns; must be tied together and connected to low-impedance analog plane |
| REF (3) | 2.5V Reference Output | Factory-trimmed bandgap reference; bypass with 2.2µF tantalum; can be overdriven by external reference |
| CAP (4) | 4.096V Buffered Reference Output | 1.64× scaled output of REF; drives internal DAC; bypass with 10µF tantalum; DC load only (<2mA) |
| D15–D0 (6–13, 15–22) | Three-State Parallel Data Outputs | 16-bit two's complement output bus; Hi-Z when CS high or R/C low; byte-order configurable via BYTE pin |
| BUSY (26) | Conversion Status Indicator | Active-low open-drain output; goes high at end of conversion; rising edge indicates valid data |
| R/C (24) | Read/Convert Control | Falling edge initiates conversion when CS low; rising edge enables data output; timing-critical (≤1µs return) |
| CS (25) | Chip Select | Enables device; falling edge starts conversion when R/C low; internally OR'd with R/C for dual-mode operation |
| BYTE (23) | Byte Order Select | Low: D15–D8 = MSB, D7–D0 = LSB; High: D15–D8 = LSB, D7–D0 = MSB - supports 8-bit bus interfaces |
| VANA (27), VDIG (28) | Analog/Digital Supplies | Both require 4.75V–5.25V; VDIG connected directly to VANA; bypass each with 0.1µF ceramic + 10µF tantalum |
Key Features
| Feature | Design Value |
|---|---|
| Internal synchronized clock | Eliminates external clock source and associated jitter; guarantees 250ksps throughput with 2.5µs conversion time |
| Trimmed internal reference | 2.500V ±0.030V (±5ppm/°C) - enables ±10V full-scale without external components; reduces BOM count |
| Transition noise reduction | 0.65LSB RMS - improves histogram stability for DC measurements vs. 1.0LSB in competitive parts |
| Overvoltage protection | ±25V on VIN - withstands transient surges common in industrial field wiring without external clamping |
| Microprocessor interface logic | CMOS-compatible VIH/VIL thresholds and 15–60ns bus access timing - ensures reliable handshake with 8051, ARM, and DSP platforms |
Applications
| Industrial Process Control | Multiplexed Data Acquisition Systems |
|---|---|
|
Use Scenario: Monitoring temperature, pressure, and flow sensors in PLC-based control cabinets with ±10V analog inputs. IC Role / Device Role / Timing Role: Primary ADC digitizing multiple channels via external multiplexer; operates continuously at 250ksps with stable 90dB SNR. Use Value: ±2.0LSB INL and guaranteed no missing codes ensure accurate closed-loop feedback without calibration drift over –40°C to +85°C. |
Use Scenario: High-channel-count DAQ system scanning 16+ sensors using analog multiplexer and sample-and-hold. IC Role / Device Role / Timing Role: Core sampling engine with 1.5µs acquisition time and 2.5µs conversion - enables >200ksps effective throughput per channel. Use Value: Internal reference and CAP buffer eliminate need for external precision references, reducing layout complexity and cost per channel. |
| High-Speed PC-Based Data Acquisition | Digital Signal Processing Front-End |
|
Use Scenario: PCIe or USB DAQ card capturing vibration spectra from accelerometers for predictive maintenance analysis. IC Role / Device Role / Timing Role: High-fidelity analog front-end feeding FPGA or DSP; 90dB SNR preserves dynamic range for FFT-based spectral analysis. Use Value: 0.65LSB transition noise and 90dB SINAD at 1kHz enable >14.9 ENOB - sufficient for Class I vibration standards (ISO 10816). |
Use Scenario: Real-time motor control system where ADC feeds position/speed feedback to FOC algorithm running on C2000 MCU. IC Role / Device Role / Timing Role: Synchronized sampling node with BUSY-driven interrupt triggering; supports deterministic 4µs inter-conversion interval. Use Value: Two's complement output and BYTE-selectable byte order simplify DMA transfers to TI C2000 memory maps without software bit manipulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit, 250ksps ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7805U | 16-bit, 100ksps; external reference required; no internal CAP buffer; 80dB SNR | Lower throughput and SNR limit use in high-dynamic-range or high-speed applications | Select when cost sensitivity outweighs speed/SNR requirements and external reference is already present |
| AD976ARZ | 16-bit, 100ksps; ±10V input supported; requires external clock; 86dB SNR; different pinout | Lacks internal clock and reference - increases board area and design complexity | Choose only if legacy AD976A footprint compatibility is mandatory and system clocking infrastructure exists |
Compared with ADS7805U and AD976ARZ, the LTC1606ISW#PBF delivers 2.5× higher sampling rate, 4–10dB better SNR, and integrated reference/CAP functionality - reducing component count, layout risk, and calibration effort in new designs.
Availability
LTC1606ISW#PBF is available at Aetrix Electronics and suitable for industrial process control, multiplexed data acquisition systems, and high-speed PC-based DAQ requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC1606ISW#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 LTC1606ISW#PBF belongs to Linear Technology's precision data acquisition product line, designed specifically for high-accuracy, low-power, single-supply industrial measurement applications where reliability and guaranteed specifications over temperature are critical.
FAQ
What is the operating temperature range for the LTC1606ISW#PBF?
The LTC1606ISW#PBF is rated for industrial temperature operation from –40°C to +85°C. All key specifications - including ±2.0LSB INL, no missing codes, and 90dB SNR - are guaranteed across this full range, making it suitable for harsh environments such as factory floors and outdoor instrumentation.
Can the LTC1606ISW#PBF operate with an external reference instead of the internal one?
Yes, the LTC1606ISW#PBF supports external reference operation: drive the REF pin with a precision voltage (2.30V–2.70V) while disabling the internal reference. This configuration improves temperature drift performance - e.g., using LT1461 (0.04% max initial error, 10ppm/°C) achieves tighter full-scale accuracy than the internal 2.5V reference alone.
How does the BYTE pin affect data output formatting on the LTC1606ISW#PBF?
The BYTE pin on the LTC1606ISW#PBF selects between two parallel output formats: when LOW, D15–D8 carry MSBs and D7–D0 carry LSBs; when HIGH, D15–D8 carry LSBs and D7–D0 carry MSBs. This allows seamless integration with both 16-bit microprocessors and 8-bit buses without external logic or software byte-swapping.
What decoupling is required for optimal performance of the LTC1606ISW#PBF?
For optimal performance, the LTC1606ISW#PBF requires: (1) 0.1µF ceramic + 10µF tantalum on VANA and VDIG (shared); (2) 2.2µF tantalum on REF; (3) 10µF tantalum on CAP. All capacitors must be placed within 5mm of respective pins, with wide, low-inductance ground traces - failure to follow degrades SNR and increases transition noise beyond 0.65LSB.
Is the LTC1606ISW#PBF pin-compatible with earlier LTC1606 variants like LTC1606CSW?
Yes, the LTC1606ISW#PBF shares identical 28-pin SO (SW) package, pinout, and electrical interface with all LTC1606xSW variants (e.g., LTC1606CSW, LTC1606ACSW). The 'I' suffix denotes the industrial temperature grade (–40°C to +85°C), while 'C' denotes commercial (0°C to +70°C); functionally and physically interchangeable in same-temperature designs.
LTC1606ISW#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:
- -
LTC1606ISW#PBF FAQ
1.How can I place an order for LTC1606ISW#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1606ISW#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 LTC1606ISW#PBF reliable?
The price and inventory of LTC1606ISW#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1606ISW#PBF is usually 5 days.
3.What payment methods are accepted for LTC1606ISW#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1606ISW#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1606ISW#PBF?
LTC1606ISW#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1606ISW#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 LTC1606ISW#PBF?
For technical support, including LTC1606ISW#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1606ISW#PBF requirements.
6.How does Aetrix verify that LTC1606ISW#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1606ISW#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 LTC1606ISW#PBF meets industry standards.
7.What is the process for return or replacement of LTC1606ISW#PBF?
All LTC1606ISW#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1606ISW#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 LTC1606ISW#PBF part is unused and in its original packaging.
Return procedure for LTC1606ISW#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1606ISW#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…
