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Analog Devices Inc. LTC1603IG#TRPBF
- Part No.:
- LTC1603IG#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 36-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
LTC1603IG#TRPBF.pdf
- Description:
- IC ADC 16BIT SAR 36SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,628
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Product details
Overview
LTC1603IG#TRPBF from Analog Devices (formerly Linear Technology) is a 16-bit, 250ksps successive-approximation analog-to-digital converter with differential input, internal 2.5V reference, ±2.5V bipolar input range, and 90dB S/(N+D) at 250ksps. It operates from ±5V supplies, draws 220mW typical power, and supports Nap (7mW) and Sleep (10µW) shutdown modes for low-power data acquisition systems in spectrum analysis and imaging.
For engineers reviewing the LTC1603IG#TRPBF datasheet, LTC1603IG#TRPBF pinout, LTC1603IG#TRPBF application, or LTC1603IG#TRPBF equivalent, key selection criteria include its no-pipeline-delay parallel output, 68dB common-mode rejection, 480ns acquisition time, ±1 LSB integral linearity over temperature, and compatibility with µP/DSP interfaces via CONVST, RD, and BUSY control signals.
Technical Context
The LTC1603IG#TRPBF implements a capacitor-based successive-approximation register (SAR) architecture with an integrated differential sample-and-hold circuit. Its 15MHz input bandwidth and 68dB CMRR enable high-fidelity acquisition of single-ended or true differential signals without ground-loop interference.
Conversion is initiated by a falling edge on CONVST while CS is low; BUSY goes low during conversion and rises when 16-bit two's complement data is valid on D15–D0. The internal clock guarantees 3.8µs max conversion time and 4µs throughput, with no pipeline latency between sampling and data availability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, no missing codes over full operating temperature range |
| Sampling Rate | 250ksps maximum - enables real-time capture of up to 125kHz Nyquist-band signals |
| S/(N+D) | 90dB typical at 5kHz - ensures high dynamic range for precision signal analysis |
| THD | –100dB typical at 5kHz - supports low-distortion measurement in audio and instrumentation |
| Input Range | ±2.5V differential - matches standard op-amp output ranges and eliminates level-shifting circuitry |
| Power Modes | Nap (7mW) and Sleep (10µW) - reduces system power by >95% during idle periods |
| Acquisition Time | 480ns guaranteed - allows fast settling even with moderate source impedances |
| Common-Mode Rejection | 68dB - suppresses noise coupling from shared grounds or EMI sources |
Pinout & Package
36-pin SSOP package (0.209" body width, JEDEC MO-153), lead-free and RoHS-compliant. Thermal resistance θJA = 95°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ (1), AIN– (2) | Differential analog input pair | Accepts ±2.5V differential or single-ended (AIN– grounded) signals; 15MHz bandwidth, 68dB CMRR |
| VREF (3) | 2.5V reference output | Internal bandgap reference buffered and available externally; bypass with 2.2µF + 0.1µF |
| REFCOMP (4) | Reference amplifier compensation | Stabilizes internal reference amplifier; requires 47µF + 0.1µF bypass to AGND |
| AGND (5–8) | Analog ground return | Four dedicated analog ground pins - must connect to low-impedance analog ground plane |
| DVDD (9), DGND (10) | Digital logic supply/ground | 5V digital core supply; DGND tied to AGND for noise isolation |
| D15–D0 (11–26) | 16-bit parallel data outputs | Three-state, µP-compatible bus; MSB-first two's complement format |
| BUSY (27) | Conversion status indicator | Active-low open-drain output; data valid on rising edge |
| OGND (28), OVDD (29) | Output driver supply/ground | Separate 3V/5V-compatible output supply - enables interfacing with mixed-voltage systems |
| RD (30), CONVST (31), CS (32) | Digital control inputs | Standard memory-mapped interface: CS enables device, CONVST starts conversion, RD latches data |
| SHDN (33) | Power shutdown control | Low-active; mode selected by CS state (Nap if CS low, Sleep if CS high) |
| VSS (34) | Negative analog supply | –5V supply rail; bypass with 10µF + 0.1µF tantalum/ceramic |
| AVDD (35–36) | Positive analog supply | Dual 5V analog supply pins; connected via 10Ω resistor for optimal PSRR |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Immediate data availability after BUSY rise - eliminates timing uncertainty in closed-loop control |
| True differential input architecture | Enables rejection of ground loops and common-mode noise without external instrumentation amps |
| Internal 15ppm/°C reference | Eliminates need for external precision reference in cost-sensitive applications |
| 3V/5V I/O compatible outputs | OVDD pin allows direct connection to 3V microcontrollers or FPGAs without level shifters |
| Guaranteed no missing codes | Ensures monotonicity and simplifies calibration across –40°C to +85°C industrial temperature range |
| Two-stage power shutdown | Nap mode retains reference stability for <200ns wake-up; Sleep mode achieves ultra-low standby current |
Applications
| Telecommunications Test Equipment | Digital Signal Processing Front-End |
|---|---|
Use Scenario: Capturing baseband IQ signals in RF transceiver characterization setups requiring high spurious-free dynamic range. IC Role / Device Role / Timing Role: ADC front-end digitizing dual-channel analog IF signals at 250ksps with synchronized sampling and minimal aperture jitter. Use Value: 96dB SFDR and –94dB THD at 100kHz enable accurate spectral purity analysis of modulated waveforms. | Use Scenario: Real-time sensor data conditioning in FPGA-based motor control systems with adaptive filtering. IC Role / Device Role / Timing Role: High-accuracy analog input stage feeding 16-bit samples directly to DSP memory-mapped peripherals. Use Value: No pipeline delay and BUSY-synchronized readout ensure deterministic latency for feedback loop closure. |
| Multiplexed Data Acquisition Systems | Imaging System Digitization |
Use Scenario: Channel-scanned voltage monitoring in industrial PLC analog input modules with 16-channel multiplexing. IC Role / Device Role / Timing Role: Precision ADC per channel or shared among channels via analog multiplexer with fast acquisition. Use Value: 480ns acquisition time and ±1 LSB INL support accurate multi-channel synchronization without calibration overhead. | Use Scenario: Digitizing CCD/CMOS sensor outputs in medical X-ray or industrial inspection cameras. IC Role / Device Role / Timing Role: High-linearity ADC capturing analog pixel data with low harmonic distortion for image fidelity. Use Value: 90dB S/(N+D) and 350kHz full linear bandwidth preserve contrast and detail in high-resolution grayscale images. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed 16-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8556IPM | 6-channel simultaneous-sampling, 16-bit, 630ksps, SPI interface, no internal reference | Requires external reference and serial interface design; better for multi-channel sync but higher BOM cost | Choose for multi-channel synchronized acquisition where parallel bus is impractical |
| AD7606BSTZ | 8-channel, 16-bit, 200ksps, parallel/SPI, internal reference, ±10V input range | Wider input range but lower speed and S/(N+D) (86dB); includes on-chip PGA and oversampling | Choose for multi-input industrial DAQ needing programmable gain and simpler layout |
Compared with ADS8556IPM and AD7606BSTZ, the LTC1603IG#TRPBF delivers superior AC performance (90dB S/(N+D)) and deterministic parallel interface timing at 250ksps, making it optimal for single-channel high-fidelity signal capture where low-latency µP interfacing is critical.
Availability
LTC1603IG#TRPBF is available at Aetrix Electronics and suitable for telecommunications test equipment, digital signal processing front-ends, and multiplexed data acquisition systems requiring stable component supply and long-term industrial lifecycle support.
Supply support for LTC1603IG#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC1603IG#TRPBF belongs to Linear Technology's precision high-speed data converter product line, designed specifically for applications demanding high dynamic range, low power, and µP-compatible parallel interfacing in space-constrained industrial and test environments.
FAQ
What is the operating temperature range for the LTC1603IG#TRPBF?
The LTC1603IG#TRPBF is rated for industrial operation from –40°C to +85°C (I-grade). This extended range ensures reliable performance in harsh environments such as factory automation and outdoor test equipment. All key specifications-including integral linearity (±1 LSB), S/(N+D) (90dB), and conversion time (≤3.8µs)-are guaranteed across this full temperature span, eliminating need for derating or thermal recalibration in deployed systems.
Does the LTC1603IG#TRPBF require an external clock source?
No, the LTC1603IG#TRPBF contains a fully integrated, factory-trimmed internal clock that drives the SAR conversion process. It delivers a guaranteed maximum conversion time of 3.8µs and supports 250ksps sampling without any external timing components. This simplifies system design, reduces component count, and improves timing predictability-critical for deterministic data acquisition in µP- or DSP-based systems using the LTC1603IG#TRPBF.
How does the LTC1603IG#TRPBF handle differential versus single-ended input configurations?
The LTC1603IG#TRPBF natively supports both configurations: AIN+ and AIN– form a true differential pair with 68dB CMRR and 15MHz bandwidth, enabling noise-rejecting measurements; for single-ended use, AIN– is grounded and AIN+ accepts a 0V to +2.5V or ±2.5V signal depending on reference configuration. Integral and differential nonlinearity remain invariant with common-mode voltage, though bipolar zero error shifts <0.1% per volt-verified in LTC1603IG#TRPBF characterization data.
What are the power supply requirements for the LTC1603IG#TRPBF?
The LTC1603IG#TRPBF requires three independent supply rails: AVDD = DVDD = OVDD = +5V (4.75V to 5.25V), VSS = –5V (–4.75V to –5.25V), and separate AGND/DGND/OGND connections. Bypassing is critical: AVDD/VSS need 10µF + 0.1µF per rail; VREF requires 2.2µF + 0.1µF; REFCOMP needs 47µF + 0.1µF. Total active power is 220mW typical; Nap mode draws 7mW and Sleep mode just 10µW-specified and tested for the LTC1603IG#TRPBF across temperature.
Is the LTC1603IG#TRPBF pin-compatible with other members of the LTC160x family?
Yes, the LTC1603IG#TRPBF is pin-compatible with the LTC1604 and LTC1608 as stated in the official datasheet. This allows drop-in replacement in existing designs targeting different speed/resolution trade-offs: LTC1604 is 14-bit/250ksps, LTC1608 is 16-bit/100ksps. All share identical 36-pin SSOP footprint, pin functions, and control protocol-enabling hardware reuse and simplified migration paths without PCB redesign for the LTC1603IG#TRPBF.
LTC1603IG#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 36-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:
- Differential, 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:
- 36-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1603IG#TRPBF FAQ
1.How can I place an order for LTC1603IG#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1603IG#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 LTC1603IG#TRPBF reliable?
The price and inventory of LTC1603IG#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1603IG#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1603IG#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1603IG#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1603IG#TRPBF?
LTC1603IG#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1603IG#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 LTC1603IG#TRPBF?
For technical support, including LTC1603IG#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1603IG#TRPBF requirements.
6.How does Aetrix verify that LTC1603IG#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1603IG#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 LTC1603IG#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1603IG#TRPBF?
All LTC1603IG#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1603IG#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 LTC1603IG#TRPBF part is unused and in its original packaging.
Return procedure for LTC1603IG#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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