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Analog Devices Inc. LTC1096CN8#PBF
- Part No.:
- LTC1096CN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LTC1096CN8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,066
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Product details
Overview
LTC1096CN8#PBF from Analog Devices (formerly Linear Technology) is a micropower 8-bit successive approximation ADC with single differential analog input, sample-and-hold, and 3-wire serial interface. It operates from 3V to 9V supply, draws only 80μA during conversion, powers down to 1nA typical in shutdown, and achieves ±0.5LSB total unadjusted error over temperature - enabling direct sensor interfacing in battery-powered remote data acquisition systems.
For engineers reviewing the LTC1096CN8#PBF datasheet, LTC1096CN8#PBF pinout, LTC1096CN8#PBF application, or LTC1096CN8#PBF equivalent, key selection criteria include its 16μs conversion time, 33kHz max sampling rate, 8-pin PDIP package, ratiometric operation capability, and low-power shutdown control via CS/SHDN pin for energy-constrained embedded sensing designs.
Technical Context
The LTC1096CN8#PBF implements a switched-capacitor SAR architecture with integrated sample-and-hold and on-chip bias circuitry. Its differential input stage supports floating signal measurement relative to GND, and it accepts external reference voltage (VREF) independent of VCC - enabling precise ratiometric or absolute measurements.
Serial communication uses a synchronous 3-wire protocol (CS/SHDN, CLK, DOUT) where data is clocked out on falling CLK edges. Conversion is initiated by pulling CS low, followed by an internal 10μs wake-up delay before the first CLK edge - critical for timing-critical microcontroller interfaces operating above 100kHz clock frequency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes - guarantees monotonic transfer function for reliable digital control feedback loops. |
| Supply Current (Active) | 80μA typical at 5V/500kHz - enables multi-year battery life in 200Hz-sampled sensor nodes. |
| Supply Current (Shutdown) | 1nA typical - eliminates quiescent drain in intermittently powered IoT endpoints. |
| Conversion Time | 16μs (8 CLK cycles at 500kHz) - supports real-time response in closed-loop monitoring up to 33kHz sampling. |
| Total Unadjusted Error | ±0.5LSB over temperature - ensures <±2mV absolute accuracy with 5V full-scale range without calibration. |
| Analog Input Range | –0.05V to VCC + 0.05V - allows direct connection to transducers with common-mode voltages up to VCC. |
| Reference Input | External VREF pin supports 2.5V–5V references - enables flexible scaling for sub-1V sensor outputs. |
Pinout & Package
Package: 8-Lead Plastic DIP (N8), 0°C to 70°C operating temperature range, θJA = 130°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/SHDN | Chip Select / Shutdown Control | Active-low enable; high state disconnects internal power - primary interface for ultra-low-power duty cycling. |
| 2: +IN | Differential Analog Input (Positive) | High-impedance input accepting signals up to VCC + 50mV - used with –IN for true differential measurement. |
| 3: –IN | Differential Analog Input (Negative) | Completes differential pair; enables rejection of common-mode noise in noisy industrial environments. |
| 4: GND | Analog Ground Reference | Must connect directly to low-impedance analog ground plane - critical for maintaining ±0.5LSB accuracy. |
| 5: VREF | External Reference Voltage Input | Defines full-scale range independently of VCC - supports ratiometric sensor interfaces and precision scaling. |
| 6: DOUT | Serial Data Output | 3-state output driven on falling CLK edges - compatible with 8051, PIC, and ARM GPIO with software SPI. |
| 7: CLK | Serial Shift Clock Input | Synchronizes bit transfer; requires 25–500kHz clock - higher frequencies reduce conversion latency but increase current. |
| 8: VCC | Power Supply Input | 3V to 9V operation; must be bypassed locally to GND - ripple >10mV degrades ENOB below 7.2 bits. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 80μA active / 1nA shutdown enables decade-scale battery life in wireless sensor nodes. |
| Differential Input Architecture | Rejects common-mode noise up to 100dB at 50/60Hz - ideal for thermocouple or bridge sensor front-ends. |
| External Reference Support | VREF pin allows use of precision 2.5V or 4.096V references - eliminates VCC dependency for stable scaling. |
| 3-Wire Serial Interface | Eliminates need for dedicated SPI hardware - reduces MCU pin count and firmware complexity in space-constrained designs. |
| Sample-and-Hold Integration | On-chip S/H captures transient signals without external components - simplifies PCB layout and improves timing margin. |
Applications
| Battery Monitoring | Remote Temperature Sensing |
|---|---|
Use Scenario: Measuring cell voltage in multi-cell Li-ion packs with minimal self-discharge. IC Role / Device Role / Timing Role: ADC digitizes 0–4.2V per cell using ratiometric mode with internal VCC as reference. Use Value: 80μA supply current extends pack standby life to >5 years; ±0.5LSB error ensures <±10mV voltage resolution. |
Use Scenario: Wireless node measuring ambient temperature via thermistor in HVAC ducts. IC Role / Device Role / Timing Role: Differential input rejects EMI from nearby motors; CS/SHDN enables burst sampling every 10 seconds. Use Value: 1nA shutdown current prevents measurable battery drain between readings; 16μs conversion enables fast wake-sleep cycles. |
| Isolated Data Acquisition | Industrial Gas Gauge |
Use Scenario: Digitizing 4–20mA loop signals across opto-isolators in PLC I/O modules. IC Role / Device Role / Timing Role: High-impedance inputs accept isolated current-to-voltage output; 3-wire interface crosses isolation barrier with minimal pins. Use Value: No external op-amp needed - reduces component count and board area; VREF independence maintains accuracy despite isolated supply variation. |
Use Scenario: Fuel level estimation in portable medical devices using resistive fuel sender. IC Role / Device Role / Timing Role: Converts sender resistance (0–200Ω) to digital value using external 2.5V reference for linearity. Use Value: ±0.5LSB TUE ensures <±0.4% full-scale error - critical for regulatory compliance in battery-powered diagnostics equipment. |
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; 1.25μs conversion; SPI-compatible 4-wire interface; no shutdown pin. | Requires external power management for ultra-low-quiescent operation; better speed but higher active current (1.2mA). | Select when faster sampling (>100ksps) is required and system-level shutdown control is available. |
| MAX1110CPA+ | 2.7–5.25V supply; 10μs conversion; 3-wire interface; 2.5μA shutdown current (not 1nA). | Higher shutdown current limits battery lifetime in decades-long deployments; same pin count but different pinout. | Select when legacy MAXIM footprint compatibility is mandatory and 2.5μA shutdown is acceptable. |
Compared with LTC1096CN8#PBF, ADS7822U offers higher speed but consumes 15× more active current, while MAX1110CPA+ matches the 3-wire interface but lacks true nanoamp shutdown - making LTC1096CN8#PBF optimal for ultra-low-duty-cycle, long-life sensor nodes where every nanoamp matters.
Availability
LTC1096CN8#PBF is available at Aetrix Electronics and suitable for battery-operated systems, remote data acquisition, and isolated data acquisition requiring stable component supply with guaranteed long-term availability.
Supply support for LTC1096CN8#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 acquired Linear Technology in 2017 and maintains full product support, datasheets, and application engineering for legacy Linear ICs including the LTC family.
The LTC1096 series belongs to Linear's micropower precision ADC product line, designed specifically for energy-constrained sensing applications where nanoscale quiescent current and guaranteed monotonicity are non-negotiable.
FAQ
What is the maximum sampling rate supported by the LTC1096CN8#PBF?
The LTC1096CN8#PBF supports a maximum sampling frequency of 33kHz under recommended operating conditions (VCC = 5V, fCLK = 500kHz). This is achieved with an 8-clock-cycle conversion time and 16μs total conversion duration. At lower clock frequencies or reduced supply voltages (e.g., 3V), the maximum sample rate decreases to 16.5kHz to maintain ±0.5LSB total unadjusted error.
Does the LTC1096CN8#PBF require an external reference voltage?
The LTC1096CN8#PBF does not require an external reference voltage - it can operate ratiometrically using VCC as the reference source. However, it includes a dedicated VREF pin that accepts external 2.5V–5V references for improved accuracy and stability, especially when VCC has significant ripple or variation. Using VREF decouples measurement accuracy from power supply quality.
How does the CS/SHDN pin function on the LTC1096CN8#PBF?
The CS/SHDN pin on the LTC1096CN8#PBF is an active-low chip select that also controls power state. When pulled high, the LTC1096CN8#PBF enters shutdown mode drawing only 1nA typical supply current. When pulled low, it wakes up and becomes operational after a 10μs delay before the first CLK edge - a timing requirement critical for reliable data capture in high-speed microcontroller interfaces.
Can the LTC1096CN8#PBF interface directly with a 3.3V microcontroller?
Yes, the LTC1096CN8#PBF supports 3V operation (minimum 3.0V) and its digital outputs are compatible with 3.3V logic levels: VOH ≥ 2.3V and VOL ≤ 0.3V at VCC = 3V and IO = 400μA. Input thresholds (VIH ≥ 1.9V, VIL ≤ 0.45V) ensure robust interfacing with standard 3.3V MCUs without level-shifting circuitry.
What is the analog input impedance of the LTC1096CN8#PBF?
The LTC1096CN8#PBF features high-impedance analog inputs: input leakage current is ±1.0μA over temperature, implying effective DC input impedance >1MΩ. The input capacitance is 25pF on-channel and 5pF off-channel. For optimal performance with high-source-impedance sensors, external RC filtering and careful PCB layout near the +IN/–IN pins are recommended to avoid settling errors.
LTC1096CN8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- microPOWER™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- 3V ~ 9V
- Voltage - Supply, Digital:
- 3V ~ 9V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
LTC1096CN8#PBF FAQ
1.How can I place an order for LTC1096CN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1096CN8#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 LTC1096CN8#PBF reliable?
The price and inventory of LTC1096CN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1096CN8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1096CN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1096CN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1096CN8#PBF?
LTC1096CN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1096CN8#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 LTC1096CN8#PBF?
For technical support, including LTC1096CN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1096CN8#PBF requirements.
6.How does Aetrix verify that LTC1096CN8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1096CN8#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 LTC1096CN8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1096CN8#PBF?
All LTC1096CN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1096CN8#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 LTC1096CN8#PBF part is unused and in its original packaging.
Return procedure for LTC1096CN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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