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Analog Devices Inc. LTC1606ACG#TRPBF
- Part No.:
- LTC1606ACG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1606ACG#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,030
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Product details
Overview
LTC1606ACG#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 250ksps successive-approximation analog-to-digital converter operating from a single 5V supply. It integrates sample-and-hold, internal 2.5V reference, 4.096V buffered CAP output, and trimmed clock. Its ±10V bipolar input range, ±2.0LSB INL (max), 90dB SNR (typ), and guaranteed no missing codes make it suitable for precision industrial data acquisition systems requiring high DC accuracy and dynamic performance.
For engineers reviewing the LTC1606ACG#TRPBF datasheet, LTC1606ACG#TRPBF pinout, LTC1606ACG#TRPBF application, or LTC1606ACG#TRPBF equivalent, key selection criteria include its 28-pin SSOP package, microprocessor-compatible 16-bit parallel interface with BYTE control, BUSY status signaling, and support for both internal and external reference configurations in demanding analog front-end designs.
Technical Context
The LTC1606ACG#TRPBF implements a switched-capacitor SAR architecture with auto-zeroed comparator and 16-bit capacitive DAC. Its internal timing uses a factory-trimmed oscillator enabling fixed 2.5µs conversion time and 1.5µs acquisition time - ensuring deterministic 250ksps throughput without external clock management.
It features dual ground separation (AGND1, AGND2, DGND), dedicated analog (VANA) and digital (VDIG) 5V supplies, and three-state parallel outputs (D15–D0) controlled by CS and R/C. The BYTE pin enables flexible 16-bit or two-byte read sequencing, while BUSY provides synchronous status for FIFO or DSP interfacing.
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 - supports 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. |
| Signal-to-Noise Ratio | 90dB typ - enables >15-bit effective resolution (ENOB ≈ 14.7 bits) at 1kHz input. |
| Integral Nonlinearity | ±2.0LSB max - ensures monotonicity and <0.003% full-scale linearity error for calibration-critical applications. |
| Power Dissipation | 75mW typ - allows dense placement in thermally constrained industrial modules without forced cooling. |
| Reference Options | Internal 2.5V bandgap (±5ppm/°C) or external reference - supports system-level accuracy optimization. |
Pinout & Package
Package: 28-lead plastic SSOP (G package), 5.3mm × 10.2mm body, 0.65mm lead pitch, RoHS-compliant and lead-free (PBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (1) | Analog Input | ±10V differential input node; requires 200Ω series resistor and local 1000pF NPO filter for optimal noise immunity. |
| AGND1 (2), AGND2 (5) | Analog Ground | Separate low-impedance return paths for reference and input circuitry; must tie to common analog ground plane. |
| REF (3) | 2.5V Reference Output | Factory-trimmed bandgap voltage; bypass with 2.2µF tantalum to stabilize DC accuracy and reduce PSRR sensitivity. |
| CAP (4) | 4.096V Buffered Reference | 1.64× amplified REF output driving internal DAC; bypass with 10µF tantalum; supports ≤2mA DC load only. |
| D15–D0 (6–13, 15–22) | Three-State Data Outputs | 16-bit parallel bus; Hi-Z when CS high or R/C low; byte-order configurable via BYTE pin for 8/16-bit host interfaces. |
| R/C (24) | Read/Convert Control | Falling edge initiates conversion (with CS low); rising edge enables data output; timing-critical (≤1µs return high). |
| CS (25) | Chip Select | Active-low enable; internally OR'd with R/C; falling edge starts conversion or latches output depending on R/C state. |
| BUSY (26) | Status Output | Active-low open-drain signal indicating conversion in progress; rising edge marks valid data availability. |
| VANA (27), VDIG (28) | Analog/Digital Supplies | Both require independent 0.1µF ceramic + 10µF tantalum decoupling; VDIG must connect directly to VANA. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Precision Reference | 2.500V ±3mV (±5ppm/°C) bandgap with curvature correction - eliminates need for external reference in most industrial applications. |
| Low Transition Noise | 0.65LSB RMS - reduces histogram spread and improves repeatability in DC measurement and sensor digitization. |
| Full-Power Bandwidth | 275kHz - supports accurate digitization of fast transients and wideband signals without aliasing distortion. |
| Overvoltage Recovery | 150ns - recovers full AC specs after ±25V input overvoltage events, enhancing robustness in noisy plant environments. |
| Aperture Jitter | Sufficient to meet AC specs - enables clean spectral performance without external clock cleanup circuitry. |
Applications
| Industrial Process Monitoring | High-Speed PC-Based DAQ |
|---|---|
|
Use Scenario: Continuous monitoring of pressure, temperature, and flow sensors in chemical plant control cabinets with ±10V transmitter outputs. IC Role / Device Role / Timing Role: Primary ADC in isolated analog front-end; samples at 250ksps with synchronized BUSY-driven DMA transfers to ARM Cortex-M7 controller. Use Value: ±2.0LSB INL and 90dB SNR ensure sub-0.01% measurement uncertainty across 40°C ambient range without recalibration. |
Use Scenario: USB-connected data acquisition card for lab-grade oscilloscope and spectrum analyzer functions on Windows/Linux PCs. IC Role / Device Role / Timing Role: High-fidelity sampling engine interfaced via FPGA to PCIe bridge; BYTE pin enables efficient 8-bit bus reads on legacy x86 platforms. Use Value: Internal 2.5V reference and CAP buffer eliminate external reference ICs, reducing BOM count and board area by 30%. |
| Multiplexed Sensor Array Acquisition | DSP-Based Motor Control Feedback |
|
Use Scenario: 16-channel thermocouple/voltage scanner in HVAC supervisory system using analog multiplexer before ADC input. IC Role / Device Role / Timing Role: Centralized ADC serving multiple channels via external MUX; R/C-controlled conversions minimize inter-channel skew. Use Value: 1.5µs acquisition time and 2.5µs conversion allow full 16-channel scan at >15ksps aggregate rate with consistent timing. |
Use Scenario: Real-time current and position feedback digitization in servo drive for industrial robotics with closed-loop PWM update at 20kHz. IC Role / Device Role / Timing Role: Synchronized sampling node triggered by PWM timer; BUSY signal feeds DSP interrupt for immediate processing. Use Value: 275kHz full-power bandwidth captures third-harmonic content of motor currents, improving field-oriented control accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, medium-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD976AARZ | 16-bit, 100ksps; requires external reference and clock; higher power (120mW); ±3.5LSB INL (max) | Lower sampling rate limits use in real-time control loops; less integrated (no internal ref/clock) | Select when cost sensitivity outweighs speed/accuracy needs and external reference is already present. |
| ADS7805U | 16-bit, 100ksps; single-supply 5V; ±4LSB INL (max); 85dB SNR; no internal reference | Higher INL and lower SNR reduce usable ENOB; requires external 2.5V reference and clock generation | Choose for legacy designs where ADS7805 footprint compatibility is mandatory and 100ksps suffices. |
Compared with AD976AARZ and ADS7805U, the LTC1606ACG#TRPBF offers 2.5× higher throughput, 5dB better SNR, tighter INL, and full integration - making it superior for new designs demanding precision, speed, and reduced system complexity.
Availability
LTC1606ACG#TRPBF is available at Aetrix Electronics and suitable for industrial process control, high-speed PC-based data acquisition, multiplexed sensor arrays, and DSP-based motor control applications requiring stable component supply and long-term manufacturability.
Supply support for LTC1606ACG#TRPBF 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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The LTC1606ACG#TRPBF belongs to Linear Technology's precision data acquisition product line, designed specifically for industrial-grade instrumentation and control systems requiring high DC accuracy, low noise, and robust operation in harsh environments.
FAQ
What is the operating temperature range for the LTC1606ACG#TRPBF?
The LTC1606ACG#TRPBF is rated for 0°C to 70°C ambient operation (Commercial grade). Its DC specifications - including ±2.0LSB INL max and ±10mV bipolar zero error - are guaranteed across this full range. For extended temperature applications, the LTC1606AIG#TRPBF (–40°C to 85°C) is the qualified industrial variant of the same device.
Does the LTC1606ACG#TRPBF require an external clock source?
No, the LTC1606ACG#TRPBF does not require an external clock. It includes a fully integrated, factory-trimmed internal oscillator that delivers precise 250ksps sampling with 2.5µs conversion time and 1.5µs acquisition time - eliminating clock routing, jitter concerns, and external component count.
How is the BYTE pin used in the LTC1606ACG#TRPBF interface?
The BYTE pin on the LTC1606ACG#TRPBF configures the 16-bit parallel output format: when LOW, D15–D8 carry MSBs and D7–D0 carry LSBs; when HIGH, the byte order swaps - D15–D8 output LSBs and D7–D0 output MSBs. This enables seamless compatibility with both 16-bit microprocessors and 8-bit controllers using two back-to-back reads.
Can the LTC1606ACG#TRPBF operate with an external reference?
Yes, the LTC1606ACG#TRPBF supports external reference operation. Driving the REF pin with a precision 2.3V–2.7V source overrides the internal 2.5V bandgap, enabling improved temperature stability and absolute accuracy - critical for metrology-grade systems where external references like LT1461 or ADR4525 are employed.
What decoupling is required for optimal performance of the LTC1606ACG#TRPBF?
Optimal performance requires: (1) 0.1µF ceramic + 10µF tantalum on VANA/V_DIG (shared); (2) 2.2µF tantalum on REF; (3) 10µF tantalum on CAP; (4) 1000pF NPO capacitor at VIN. All capacitors must be placed within 2mm of respective pins, with wide, low-inductance ground traces to minimize switching noise coupling into the analog path.
LTC1606ACG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 28-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1606ACG#TRPBF FAQ
1.How can I place an order for LTC1606ACG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1606ACG#TRPBF 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 LTC1606ACG#TRPBF reliable?
The price and inventory of LTC1606ACG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1606ACG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1606ACG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1606ACG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1606ACG#TRPBF?
LTC1606ACG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1606ACG#TRPBF 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 LTC1606ACG#TRPBF?
For technical support, including LTC1606ACG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1606ACG#TRPBF requirements.
6.How does Aetrix verify that LTC1606ACG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1606ACG#TRPBF 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 LTC1606ACG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1606ACG#TRPBF?
All LTC1606ACG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1606ACG#TRPBF, 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 LTC1606ACG#TRPBF part is unused and in its original packaging.
Return procedure for LTC1606ACG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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