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Analog Devices Inc. LTC1199LIS8#TRPBF
- Part No.:
- LTC1199LIS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1199LIS8#TRPBF.pdf
- Description:
- IC ADC 10BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,332
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Product details
Overview
LTC1199LIS8#TRPBF from Analog Devices (formerly Linear Technology) is a 10-bit, 250ksps successive approximation ADC with integrated 2-channel analog multiplexer, single 2.7V supply operation, and auto shutdown. It features SPI/MICROWIRE-compatible 4-wire serial interface (CS/CLK/DIN/DOUT), 2.2mW typical power dissipation at full speed, and MSOP-8 package - ideal for battery-powered data acquisition in portable instrumentation.
For engineers reviewing the LTC1199LIS8#TRPBF datasheet, LTC1199LIS8#TRPBF pinout, LTC1199LIS8#TRPBF application, or LTC1199LIS8#TRPBF equivalent, key selection criteria include its 250ksps sampling rate at 2.7V, software-selectable MUX configuration (single-ended CH0/CH1 or differential CH0–CH1), VCC-referenced input architecture, low 0.8–2.0mA supply current range, and guaranteed 10-bit no-missing-codes performance over –45°C to 85°C.
Technical Context
The LTC1199LIS8#TRPBF implements a switched-capacitor SAR architecture with on-chip sample-and-hold and a 2-channel analog multiplexer controlled via a 4-bit serial command word. Its reference is internally tied to VCC, eliminating external reference components but fixing full-scale range to VCC (2.7V to 4V).
It operates in half-duplex 4-wire mode: DIN accepts a start bit followed by SGL/DIFF, ODD/SIGN, and dummy bits to configure channel selection and polarity before conversion; DOUT then outputs the 10-bit result MSB-first after two null bits. Power scales linearly with sampling frequency, dropping to sub-µA in shutdown when CS is high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit with guaranteed no missing codes - ensures monotonicity and precision in closed-loop control feedback paths. |
| Max Sampling Rate | 250ksps at VCC = 2.7V - supports real-time monitoring of signals up to ~125kHz Nyquist bandwidth. |
| Supply Voltage Range | 2.7V to 4.0V - enables direct integration into 3.3V or Li-ion–based systems without LDO overhead. |
| Supply Current | 0.8mA typ at 250ksps; drops linearly with sample rate - enables micropower sleep modes in duty-cycled sensing. |
| INL / DNL | ±1LSB / ±1LSB max - maintains accuracy across full temperature range (–45°C to 85°C) without calibration. |
| SNR + THD | 58dB / –60dB at 50kHz input - suitable for medium-fidelity sensor digitization (e.g., pressure, temperature, vibration). |
| Interface | SPI/MICROWIRE-compatible 4-wire serial (CS/CLK/DIN/DOUT) - interoperable with common MCUs without protocol translation. |
Pinout & Package
Package: 8-pin MSOP (3mm × 3mm, 0.65mm pitch), RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS | Chip Select Input | Active-low enable; high state forces auto shutdown and places DOUT in Hi-Z - critical for bus sharing and power gating. |
| 2 CH0 (+IN) | Analog Input Channel 0 | Positive input for single-ended or differential measurement; includes sample-and-hold - connects directly to transducer outputs. |
| 3 CH1 (–IN) | Analog Input Channel 1 | Negative input for differential mode or GND-referenced single-ended; no sample-and-hold - must remain stable during conversion. |
| 4 GND | Analog Ground | Primary return path for analog circuitry; must be tied to low-impedance analog ground plane to minimize noise coupling. |
| 5 DIN | Digital Input | Accepts 4-bit configuration word (start + SGL/DIFF + ODD/SIGN + dummy); enables flexible channel routing without hardware changes. |
| 6 DOUT | Digital Output | Serial output of 10-bit conversion result MSB-first; tri-stated when CS is high - allows daisy-chaining or shared data bus. |
| 7 CLK | Serial Clock Input | Synchronizes all data transfers; supports up to 3.5MHz at 2.7V - sets maximum achievable throughput and timing margin. |
| 8 VCC | Positive Supply & Reference | Single 2.7–4.0V supply; also serves as internal reference voltage - simplifies BOM but ties full-scale to rail stability. |
Key Features
| Feature | Design Value |
|---|---|
| Software-Selectable 2-Channel MUX | Configurable via serial command to measure CH0 vs GND, CH1 vs GND, or CH0 vs CH1 - eliminates external analog switches in multi-sensor nodes. |
| Auto Shutdown Between Conversions | Supply current scales linearly with sampling frequency down to sub-µA idle - extends battery life in intermittent sensing applications. |
| VCC-Referenced Architecture | No external reference required; full-scale = VCC - reduces component count and PCB area in space-constrained designs. |
| Guaranteed 10-Bit Performance Over Temperature | ±1LSB INL/DNL maintained from –45°C to 85°C - enables deployment in industrial and automotive under-hood environments. |
| MSOP-8 Package with Low Thermal Resistance | θJA = 210°C/W - supports reliable operation at full speed without heatsinking in compact enclosures. |
Applications
| Portable ECG Monitor | Industrial Pressure Sensor Node |
|---|---|
|
Use Scenario: Digitizing low-amplitude biopotential signals from electrode pairs in handheld medical devices. IC Role / Device Role / Timing Role: Dual-channel differential ADC acquiring synchronized lead-II and lead-III waveforms at 250ksps for real-time arrhythmia detection. Use Value: 58dB SNR and ±1LSB linearity preserve diagnostic fidelity; 2.2mW power enables >72-hour battery life on two AA cells. |
Use Scenario: Reading bridge-based pressure transducers in factory-floor process controllers with ambient temperature swings. IC Role / Device Role / Timing Role: Single-supply ADC measuring ratiometric output of 3.3V-excited strain gauges, rejecting common-mode noise via CH0–CH1 differential mode. Use Value: VCC-referenced design eliminates reference drift error; –45°C to 85°C rating ensures reliability across unconditioned plant environments. |
| Smart HVAC Thermostat | Wireless Vibration Sensor |
|
Use Scenario: Monitoring room temperature, humidity, and CO₂ levels using multiple analog sensors in energy-efficient residential units. IC Role / Device Role / Timing Role: Time-multiplexed ADC scanning thermistor, capacitive humidity, and NDIR CO₂ amplifier outputs via CH0/CH1 switching. Use Value: Software-configurable MUX replaces discrete analog switches; 0.8mA active current minimizes impact on coin-cell battery lifetime. |
Use Scenario: Capturing broadband mechanical vibration spectra from MEMS accelerometers in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: High-speed sampling ADC interfacing with low-noise amplifier stages to capture 0–100kHz spectral content for FFT analysis. Use Value: 250ksps rate satisfies Nyquist for 100kHz vibration bands; SPI compatibility enables direct connection to ESP32 or nRF52840 host MCUs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 2.7–5.25V supply; 200ksps; SPI 3-wire (no DIN); external reference required. | Lacks MUX; requires external REF and level-shifting for 2.7V-only systems. | Choose when fixed single-channel acquisition suffices and external reference improves accuracy budget. |
| MAX11100ETE+ | 2.7–3.6V supply; 500ksps; internal reference; no MUX; 12-bit resolution. | Higher resolution but no channel selection; larger TQFN-16 package increases layout complexity. | Prefer when 12-bit precision is mandatory and board space allows larger footprint. |
Compared with LTC1199LIS8#TRPBF, ADS7822U offers simpler interface but lacks multiplexing and VCC referencing, while MAX11100ETE+ delivers higher resolution at the cost of flexibility and package size - LTC1199LIS8#TRPBF uniquely balances MUX capability, ultra-low supply voltage, and minimal BOM in compact MSOP-8 form.
Availability
LTC1199LIS8#TRPBF is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor nodes, and battery-operated thermostats requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LTC1199LIS8#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 LTC1199L series belongs to ADI's legacy Linear Technology precision data acquisition portfolio, designed specifically for low-power, high-speed, multi-channel sensor interfacing in space- and energy-constrained embedded systems.
FAQ
What is the maximum clock frequency supported by LTC1199LIS8#TRPBF at 2.7V?
The LTC1199LIS8#TRPBF supports a maximum clock frequency of 3.5MHz when operating from a 2.7V supply. This clock rate enables the full 250ksps sampling capability. Exceeding this frequency may cause timing violations or degraded AC performance, as confirmed in the Recommended Operating Conditions table of the official datasheet.
Does LTC1199LIS8#TRPBF require an external voltage reference?
No, the LTC1199LIS8#TRPBF does not require an external voltage reference. Its reference is internally tied to the VCC pin, making the full-scale input range equal to the supply voltage (2.7V to 4.0V). This eliminates external reference components and simplifies design, though it couples accuracy to VCC stability.
Can LTC1199LIS8#TRPBF perform differential measurements between CH0 and CH1?
Yes, the LTC1199LIS8#TRPBF can perform true differential measurements between CH0 and CH1. This is enabled by setting the SGL/DIFF bit to '0' and ODD/SIGN to '1' in the 4-bit serial configuration word. In this mode, the ADC measures the voltage difference (CH0 – CH1), leveraging its internal switched-capacitor SAR architecture for accurate ratiometric sensing.
What is the operating temperature range of LTC1199LIS8#TRPBF?
The LTC1199LIS8#TRPBF is specified for operation from –45°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information section and applies to all DC and AC specifications including INL, DNL, SNR, and THD - enabling use in harsh environments like factory automation and automotive cabin modules.
Is LTC1199LIS8#TRPBF pin-compatible with other members of the LTC1199 family?
Yes, the LTC1199LIS8#TRPBF is pin-compatible with LTC1199CS8, LTC1199IS8, and LTC1199LCS8 in the same MSOP-8 package. All share identical pinout (CS/CH0/CH1/GND/DIN/DOUT/CLK/VCC), allowing drop-in substitution where voltage and temperature requirements align - e.g., LTC1199LIS8#TRPBF replaces LTC1199IS8 in 2.7V systems needing extended temp range.
LTC1199LIS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 210k
- Number of Inputs:
- 1, 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 4V
- Voltage - Supply, Digital:
- 2.7V ~ 4V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1199LIS8#TRPBF FAQ
1.How can I place an order for LTC1199LIS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1199LIS8#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 LTC1199LIS8#TRPBF reliable?
The price and inventory of LTC1199LIS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1199LIS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1199LIS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1199LIS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1199LIS8#TRPBF?
LTC1199LIS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1199LIS8#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 LTC1199LIS8#TRPBF?
For technical support, including LTC1199LIS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1199LIS8#TRPBF requirements.
6.How does Aetrix verify that LTC1199LIS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1199LIS8#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 LTC1199LIS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1199LIS8#TRPBF?
All LTC1199LIS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1199LIS8#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 LTC1199LIS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC1199LIS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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