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Analog Devices Inc. LTC1096LCS8#PBF
- Part No.:
- LTC1096LCS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1096LCS8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,866
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Product details
Overview
LTC1096LCS8#PBF from Analog Devices (formerly Linear Technology) is a micropower 8-bit successive-approximation analog-to-digital converter with integrated sample-and-hold, single differential analog input, and 3-wire serial interface. It operates from 2.65V to 4.0V supply, draws only 80μA during conversion at 33kHz sampling rate, and powers down to 1nA typical quiescent current. It is used in battery monitoring and remote sensor interfaces where low power and direct sensor connection are critical.
For engineers reviewing the LTC1096LCS8#PBF datasheet, LTC1096LCS8#PBF pinout, LTC1096LCS8#PBF application, or LTC1096LCS8#PBF equivalent, key selection criteria include its 2.65V minimum supply voltage, ±0.5LSB total unadjusted error over temperature, 16.5kHz max sampling rate at 3V, differential input architecture, and SO-8 package compatibility with space-constrained embedded systems.
Technical Context
The LTC1096LCS8#PBF implements a switched-capacitor SAR ADC architecture with on-chip sample-and-hold, enabling accurate DC and low-frequency signal digitization without external hold circuitry. Its differential input supports ratiometric operation and accepts analog spans as low as 250mV full-scale when referenced to an external VREF.
It uses a synchronous 3-wire serial interface (CS/SHDN, CLK, DOUT) with data shifted out on CLK falling edges. Wake-up time from shutdown is fixed at 10μs after CS assertion, and conversion timing is fully clock-driven - 8 CLK cycles per conversion, with tCONV = 16μs at fCLK = 500kHz.
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 direct operation from single Li-ion or two alkaline cells without regulation. |
| Max Sampling Rate | 16.5kHz at VCC = 2.65V - supports real-time battery voltage and temperature monitoring at sub-61μs intervals. |
| Total Unadjusted Error | ±1.5LSB over temperature - ensures ≤0.59% full-scale accuracy without calibration in industrial-grade environments. |
| Supply Current (Active) | 80μA at 33kHz - delivers 10-year battery life in 1Hz-sampled IoT endpoints using CR2032 coin cells. |
| Supply Current (Shutdown) | 1nA typical - eliminates standby drain in always-off sensor nodes requiring multi-year shelf life. |
| Analog Input Type | Single-ended or differential (IN+, IN–) - allows rejection of common-mode noise in noisy automotive or industrial wiring. |
Pinout & Package
Package: 8-lead plastic SOIC (S8), 3.9mm × 4.9mm body, 1.27mm pitch, RoHS-compliant lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/SHDN | Chip Select / Shutdown Control | Active-low digital enable; high state disconnects internal bias, reducing ICC to 1nA - primary power gating signal for duty-cycled sensing. |
| 2: +IN | Differential Analog Input (Positive) | High-impedance input (25pF) accepting 0V to VCC+0.05V range - directly interfaces thermistors, bridge sensors, or current-sense amplifiers. |
| 3: –IN | Differential Analog Input (Negative) | Matches +IN in impedance and leakage (±1.0μA); enables true differential measurement with CMRR >70dB at DC. |
| 4: GND | Analog Ground Reference | Must connect to dedicated analog ground plane - separates noise-sensitive analog core from digital switching paths. |
| 5: VREF | External Reference Input | Accepts 2.5V reference (e.g., LT1019) to set full-scale span; supports ratiometric use with same source powering sensor and ADC. |
| 6: DOUT | Serial Data Output | CMOS-compatible output driving 360μA load; data valid 200–450ns after CLK↓ - compatible with 8051, MSP430, and ARM Cortex-M GPIO. |
| 7: CLK | Serial Shift Clock Input | Accepts 25–250kHz clock at 2.65V; rising edge samples DIN (not used in LTC1096L), falling edge clocks DOUT - defines conversion timing and data rate. |
| 8: VCC | Power Supply Input | 2.65V–4.0V analog/digital supply; requires local 1μF ceramic bypass to GND - shared rail simplifies PCB layout in ultra-low-power designs. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower active current | 80μA at 33kHz sampling - enables continuous 10Hz acquisition for >5 years on a single AA alkaline cell. |
| 1nA shutdown current | Reduces annual standby drain to <0.01mAh - preserves battery charge during multi-month storage or sleep modes. |
| Integrated sample-and-hold | Eliminates need for external S/H IC or precision op-amp - reduces BOM count and layout area in compact sensor modules. |
| Differential input with high-Z | 25pF input capacitance and ±1.0μA leakage allow direct connection to high-output-impedance sensors (e.g., RTDs, pH electrodes). |
| 3-wire serial interface | Requires only CS, CLK, DOUT - minimizes MCU GPIO usage and simplifies isolation barrier implementation via optocouplers or digital isolators. |
| 2.65V minimum supply | Starts conversion with depleted batteries down to 2.65V - extends usable battery life beyond cutoff of many 3V regulators. |
Applications
| Battery Gas Gauge | Remote Temperature Node |
|---|---|
|
Use Scenario: Measuring cell voltage and current-sense amplifier output in portable medical devices to estimate remaining capacity. IC Role / Device Role / Timing Role: ADC digitizes mV-level shunt voltage and battery terminal voltage simultaneously using differential inputs and external 2.5V reference. Use Value: 80μA active current enables 1-second sampling without degrading 7-day runtime; 1nA shutdown preserves charge during device idle periods. |
Use Scenario: Wireless sensor node deployed in HVAC ducts, logging ambient temperature every 30 seconds using a thermistor. IC Role / Device Role / Timing Role: Converts thermistor divider output referenced to internal 2.5V, with CS toggled to wake only during measurement windows. Use Value: 2.65V minimum supply allows operation until battery reaches 2.65V - extending field deployment interval by 18% vs. 3.0V-minimum ADCs. |
| Isolated Battery Monitor | Low-Power Industrial Transducer Interface |
|
Use Scenario: Monitoring 48V telecom battery bank with galvanic isolation between measurement side and host controller. IC Role / Device Role / Timing Role: Digitizes isolated voltage sense signal via opto-isolated CLK and CS lines; DOUT drives isolated level shifter. Use Value: 3-wire interface minimizes isolation channel count; 16.5kHz max sampling supports fast fault detection (<61μs response) across isolation barrier. |
Use Scenario: Reading 4–20mA loop-powered pressure transducer output in explosion-proof factory enclosures. IC Role / Device Role / Timing Role: Interfaces transducer's ratiometric output using same 2.5V reference for VREF and sensor excitation, rejecting supply ripple. Use Value: ±0.5LSB offset error and ±1.0LSB linearity ensure ≤0.4% FS accuracy without calibration - meets SIL-2 functional safety requirements. |
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 |
|---|---|---|---|
| ADS7816U | 1MSPS SAR ADC, 2.7–5.25V supply, 1.25mW active power (vs. 0.2mW for LTC1096LCS8#PBF at 3V), no shutdown mode. | Higher speed but 15× higher power - suitable for burst-mode acquisition, not continuous low-duty-cycle sensing. | Select ADS7816U only if >100ksps sampling is required; LTC1096LCS8#PBF remains superior for <20ksps battery-powered nodes. |
| MAX11100ASA+ | 8-bit SAR with 1.8–3.6V supply, 12μA active current at 1ksps, but no differential input or external VREF support. | Limited to single-ended inputs and fixed internal reference - cannot perform ratiometric or low-span measurements. | Choose MAX11100ASA+ for ultra-low-power single-ended apps only; LTC1096LCS8#PBF provides essential differential capability for precision sensor front-ends. |
Compared with ADS7816U and MAX11100ASA+, the LTC1096LCS8#PBF uniquely combines differential input, external reference support, 1nA shutdown, and 2.65V operation - making it the only option capable of high-accuracy, multi-year battery life in ratiometric sensor systems.
Availability
LTC1096LCS8#PBF is available at Aetrix Electronics and suitable for battery-operated systems, remote data acquisition nodes, and isolated industrial monitors requiring stable component supply across extended production lifecycles.
Supply support for LTC1096LCS8#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 semiconductors, formed through the acquisition of Linear Technology in 2017.
The LTC1096/LTC1096L series was designed specifically for ultra-low-power, precision data acquisition in energy-constrained environments - targeting battery-powered instrumentation, portable medical devices, and wireless sensor networks.
FAQ
What is the minimum supply voltage required for reliable operation of the LTC1096LCS8#PBF?
The LTC1096LCS8#PBF specifies a guaranteed minimum supply voltage of 2.65V across its full operating temperature range (0°C to 70°C). Below this threshold, conversion accuracy and timing parameters are not assured. At 2.65V, it maintains 16.5kHz maximum sampling rate and ±1.5LSB total unadjusted error - enabling operation deep into battery discharge curves where many 3V-rated ADCs fail.
Does the LTC1096LCS8#PBF support differential input measurements?
Yes, the LTC1096LCS8#PBF features true differential analog inputs on pins +IN (Pin 2) and –IN (Pin 3). This allows measurement of the voltage difference between two points while rejecting common-mode noise - critical for bridge sensors, current shunts, and thermocouples. The input common-mode range extends from –0.05V to VCC+0.05V, supporting floating signal sources.
How does the shutdown mode of the LTC1096LCS8#PBF reduce system power consumption?
The LTC1096LCS8#PBF enters shutdown mode when CS/SHDN (Pin 1) is driven high, reducing supply current to 1nA typical. This cuts active power by >99.99% versus 80μA active current. In a 1Hz sampling system, this yields average current of just 80.001nA - extending CR2032 battery life beyond 10 years without compromising measurement fidelity.
Can the LTC1096LCS8#PBF operate with an external reference voltage?
Yes, the LTC1096LCS8#PBF accepts an external reference voltage applied to the VREF pin (Pin 5). It supports references from 2.5V up to VCC+0.05V, enabling ratiometric configurations where the same reference powers both the sensor and ADC - eliminating errors from reference drift and supply variation in precision measurement systems.
What is the maximum sampling rate achievable with the LTC1096LCS8#PBF at 2.65V supply?
At VCC = 2.65V, the LTC1096LCS8#PBF achieves a maximum sampling frequency of 16.5kHz, corresponding to a minimum conversion interval of 60.6μs. This is defined by its 8-clock-cycle conversion time and maximum supported clock frequency of 250kHz under 2.65V conditions - sufficient for anti-aliasing-filtered temperature, pressure, and battery voltage monitoring.
LTC1096LCS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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#PBF FAQ
1.How can I place an order for LTC1096LCS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1096LCS8#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 LTC1096LCS8#PBF reliable?
The price and inventory of LTC1096LCS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1096LCS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1096LCS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1096LCS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1096LCS8#PBF?
LTC1096LCS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1096LCS8#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 LTC1096LCS8#PBF?
For technical support, including LTC1096LCS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1096LCS8#PBF requirements.
6.How does Aetrix verify that LTC1096LCS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1096LCS8#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 LTC1096LCS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1096LCS8#PBF?
All LTC1096LCS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1096LCS8#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 LTC1096LCS8#PBF part is unused and in its original packaging.
Return procedure for LTC1096LCS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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