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Analog Devices Inc. LTC1096LCS8#TRPBF
- Part No.:
- LTC1096LCS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1096LCS8#TRPBF.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,693
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Product details
Overview
LTC1096LCS8#TRPBF from Analog Devices (formerly Linear Technology) is a micropower 8-bit successive approximation ADC with integrated sample-and-hold, single-supply operation (2.65V to 4.0V), differential analog input, and 3-wire serial interface. It draws only 80 μA during conversion at 33 kHz sampling rate and drops to 1 nA in shutdown mode. Its ±0.5 LSB total unadjusted error over temperature and 16 μs conversion time make it suitable for precision battery-powered sensor monitoring.
For engineers reviewing the LTC1096LCS8#TRPBF datasheet, LTC1096LCS8#TRPBF pinout, LTC1096LCS8#TRPBF application, or LTC1096LCS8#TRPBF equivalent, key selection criteria include its 2.65V minimum supply voltage, differential input architecture, 1 nA shutdown current, SO-8 package compatibility, and ratiometric operation with external reference or VCC-based scaling.
Technical Context
This switched-capacitor ADC uses a capacitive DAC and SAR architecture with on-chip sample-and-hold. Conversion is initiated by CS low, followed by an 8-clock-cycle sequence where data shifts out MSB-first on DOUT synchronized to CLK falling edges.
The device supports ratiometric operation using either an external reference (VREF) or VCC as full-scale reference. Its high-impedance analog inputs (±1.0 μA leakage) and 25 pF on-channel input capacitance enable direct connection to low-output-impedance sensors without buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes - guarantees monotonic transfer function for reliable control loop feedback. |
| Supply Voltage Range | 2.65V to 4.0V - enables operation from single Li-ion cell (3.0–3.7V) or regulated 3.3V rail without LDO overhead. |
| Max Sampling Rate | 33 kHz - supports real-time monitoring of fast transients in battery gas gauging or motor current sensing. |
| Total Unadjusted Error | ±0.5 LSB over temperature - ensures <10 mV absolute accuracy at 2.5V reference (1 LSB = 9.8 mV), critical for calibrated sensor interfaces. |
| Conversion Time | 16 μs - fixed 8-clock-cycle latency at 500 kHz clock; enables deterministic timing in time-critical embedded firmware. |
| Shutdown Current | 1 nA typical - reduces quiescent power to <3 nW, extending shelf life of sealed remote sensors. |
| Analog Input Type | Differential (IN+, IN−) - rejects common-mode noise up to VCC, essential for isolated or noisy industrial signal chains. |
Pinout & Package
Package: 8-lead plastic SOIC (S8), 150°C max junction temperature, θJA = 175°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/SHDN | Chip Select / Shutdown Control | Active-low enable; high state disconnects internal power rails, reducing ICC to 1 nA - used for duty-cycled measurement bursts. |
| 2: +IN | Differential Analog Input (Positive) | High-impedance input (±1.0 μA leakage); accepts signals up to VCC + 0.05V - directly interfaces with bridge sensors or op-amp outputs. |
| 3: −IN | Differential Analog Input (Negative) | Matches +IN characteristics; enables true differential measurement rejecting ground bounce and EMI. |
| 4: GND | Analog Ground Reference | Must connect to low-noise analog ground plane; separates analog return from digital switching currents. |
| 5: VREF | External Reference Input | Defines full-scale range; supports 2.5V reference for 9.8 mV/LSB resolution or ratiometric use with precision voltage dividers. |
| 6: DOUT | Serial Data Output | MSB-first, 8-bit output synchronized to CLK falling edge; tri-state when CS high - allows bus sharing with other peripherals. |
| 7: CLK | Serial Interface Clock | Accepts 25–250 kHz clock (at 2.65V); rising edge samples DIN (not used in LTC1096L), falling edge clocks DOUT. |
| 8: VCC | Power Supply Input | Single supply input; requires local 1 μF ceramic bypass to GND - powers internal bias, reference buffer, and logic. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 80 μA active current at 33 kHz sampling enables >10-year battery life in 1-sample-per-second wake-up systems. |
| Differential Input Architecture | Rejects common-mode noise up to VCC, eliminating need for instrumentation amplifiers in thermocouple or strain gauge interfaces. |
| 3-Wire Serial Interface | Requires only CS, CLK, and DOUT - simplifies PCB routing and reduces MCU GPIO usage versus parallel or SPI-compatible parts. |
| On-Chip Sample-and-Hold | Acquires analog input during first 1.5 clock cycles - eliminates external S/H circuitry and associated board space and cost. |
| Ratiometric Capability | Operates with VCC as reference, enabling accurate measurements even with varying supply voltage (e.g., discharging battery). |
Applications
| Battery Gas Gauging | Remote Temperature Monitoring |
|---|---|
|
Use Scenario: Measuring cell voltage and current in portable Li-ion packs to estimate state-of-charge via coulomb counting. IC Role / Device Role / Timing Role: ADC digitizes shunt voltage and battery terminal voltage with 1 nA shutdown between readings to minimize self-discharge. Use Value: 80 μA active current and 2.65V minimum supply allow direct integration into fuel gauge ICs powered from the monitored battery. |
Use Scenario: Wireless sensor nodes deployed in HVAC ducts or industrial enclosures measuring ambient temperature every 10 seconds. IC Role / Device Role / Timing Role: Converts output of PT1000 or thermistor bridge into 8-bit digital values; CS toggled per reading to achieve sub-μA average current. Use Value: Differential input rejects common-mode noise from long sensor wires; 3-wire interface minimizes RF emissions in ISM-band transceivers. |
| Isolated Data Acquisition | Low-Power Industrial Sensor Interface |
|
Use Scenario: Digitizing 4–20 mA loop signals across galvanic isolation barriers in PLC I/O modules. IC Role / Device Role / Timing Role: ADC resides on isolated side; 3-wire serial interface transmits data through optocouplers or digital isolators with minimal pin count. Use Value: 1 nA shutdown current prevents loading of isolated DC-DC converter; 16 μs conversion time enables high-throughput multiplexed channel scanning. |
Use Scenario: Condition monitoring of motor windings using thermistors mounted on stator cores in fan-cooled industrial drives. IC Role / Device Role / Timing Role: Reads multiple thermistors via external analog MUX; differential input compensates for PCB trace resistance drift. Use Value: ±0.5 LSB TUE ensures <±0.2°C accuracy over –40°C to +85°C; SO-8 package fits dense motor control PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit micropower ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 2.7–5.25V supply; 1 μs conversion; SPI-compatible 4-wire interface; no differential input. | Requires external op-amp for differential signals; higher speed but higher 1.2 mA active current limits battery life. | Select when faster throughput (>200 kSPS) and SPI compatibility outweigh micropower needs. |
| MAX11100ASA+ | 2.7–3.6V supply; 12-bit resolution; 1.5 μA shutdown; SPI interface; pseudo-differential input. | Higher resolution but larger 12-bit word length increases serial transfer time and MCU processing load. | Select when 12-bit precision is required and system can accommodate 3.3V-only operation and SPI protocol. |
Compared with ADS7822U and MAX11100ASA+, the LTC1096LCS8#TRPBF delivers superior energy efficiency (1 nA vs ≥1 μA shutdown) and native differential input support, making it optimal for ultra-low-power, noise-immune sensor front-ends where 8-bit resolution suffices.
Availability
LTC1096LCS8#TRPBF is available at Aetrix Electronics and suitable for battery-operated systems, remote data acquisition nodes, and isolated industrial sensor interfaces requiring stable component supply across extended production lifecycles.
Supply support for LTC1096LCS8#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 acquired Linear Technology in 2017 and maintains full product support, datasheets, and application notes for legacy Linear parts including the LTC1096 family.
The LTC1096 series was designed specifically for micropower, low-voltage, serial-output data acquisition in space-constrained, battery-dependent applications - emphasizing shutdown efficiency, differential input fidelity, and minimal external component count.
FAQ
What is the minimum supply voltage required for reliable operation of the LTC1096LCS8#TRPBF?
The LTC1096LCS8#TRPBF operates down to 2.65V over its full temperature range (0°C to 70°C). Below this voltage, specifications such as total unadjusted error, conversion time, and digital timing margins are not guaranteed. The part remains functional but may exhibit increased offset error or failed conversions at 2.60V or lower.
Does the LTC1096LCS8#TRPBF require an external reference voltage, or can it operate ratiometrically?
The LTC1096LCS8#TRPBF supports both modes: it accepts an external reference on the VREF pin (e.g., 2.5V for 9.8 mV/LSB resolution), or it can use VCC as the reference for ratiometric operation - ideal for battery voltage monitoring where reference drift matches supply variation.
How does the shutdown mode of the LTC1096LCS8#TRPBF reduce power consumption?
When CS/SHDN is held high, the LTC1096LCS8#TRPBF disconnects internal power rails and disables all analog and digital circuitry except leakage paths, reducing supply current to 1 nA typical. This enables multi-year operation in intermittently sampled sensor nodes without compromising conversion accuracy upon wake-up.
What is the maximum clock frequency supported by the LTC1096LCS8#TRPBF at 2.65V supply?
At VCC = 2.65V, the LTC1096LCS8#TRPBF supports a maximum clock frequency of 250 kHz. Exceeding this limit risks timing violations in setup/hold windows (e.g., tsuDI = 1 μs), potentially causing incorrect bit reads or corrupted conversion results.
Can the LTC1096LCS8#TRPBF interface directly with a microcontroller's GPIO pins without level-shifting?
Yes - the LTC1096LCS8#TRPBF's digital inputs (CS, CLK) accept VIH ≥ 1.9V and VIL ≤ 0.45V at 2.65V supply, matching standard 3.3V and 2.8V GPIO logic thresholds. Its DOUT output drives VOH ≥ 2.3V and VOL ≤ 0.3V under 360 μA load, ensuring robust interfacing with most modern MCUs.
LTC1096LCS8#TRPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 33k
- Number of Inputs:
- 1
- 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:
- 2.65V ~ 4V
- Voltage - Supply, Digital:
- 2.65V ~ 4V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1096LCS8#TRPBF FAQ
1.How can I place an order for LTC1096LCS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1096LCS8#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 LTC1096LCS8#TRPBF reliable?
The price and inventory of LTC1096LCS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1096LCS8#TRPBF is usually 5 days.
3.What payment methods are accepted for LTC1096LCS8#TRPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1096LCS8#TRPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1096LCS8#TRPBF?
LTC1096LCS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1096LCS8#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 LTC1096LCS8#TRPBF?
For technical support, including LTC1096LCS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1096LCS8#TRPBF requirements.
6.How does Aetrix verify that LTC1096LCS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1096LCS8#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 LTC1096LCS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1096LCS8#TRPBF?
All LTC1096LCS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1096LCS8#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 LTC1096LCS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC1096LCS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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