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Analog Devices Inc. LTC1096AIN8#PBF
- Part No.:
- LTC1096AIN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LTC1096AIN8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,097
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Product details
Overview
LTC1096AIN8#PBF from Analog Devices (formerly Linear Technology) is a micropower 8-bit successive approximation analog-to-digital converter (ADC) with integrated sample-and-hold and single differential analog input. 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 precision battery monitoring and isolated sensor interfaces.
For engineers reviewing the LTC1096AIN8#PBF datasheet, LTC1096AIN8#PBF pinout, LTC1096AIN8#PBF application, or LTC1096AIN8#PBF equivalent, key selection criteria include its 16μs conversion time, 3-wire serial interface compatibility with 8051-style microcontrollers, differential input architecture for ratiometric sensing, and –40°C to +85°C industrial temperature range in 8-lead plastic DIP package.
Technical Context
The LTC1096AIN8#PBF implements a switched-capacitor SAR architecture with on-chip sample-and-hold, supporting ratiometric operation using an external reference (VREF pin) or direct VCC-referenced conversion. Its differential input pair (+IN/–IN) enables rejection of common-mode noise up to VCC + 0.05V, allowing measurement of floating signals without level-shifting circuitry.
Control is managed via a 3-wire synchronous serial interface (CS/SHDN, CLK, DOUT), where CS/SHDN serves dual roles: chip select during active conversion and shutdown enable when high. Wake-up time after CS assertion is fixed at 10μs, and data is clocked out MSB-first on CLK falling edges with guaranteed timing margins per AC specifications.
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 Current (Active) | 80μA max at 5V/500kHz - enables multi-year battery life in low-duty-cycle remote sensors. |
| Supply Current (Shutdown) | 1nA typical - eliminates quiescent drain in always-on systems with periodic wake-up. |
| Conversion Time | 16μs (8 CLK cycles at 500kHz) - supports up to 33kHz sampling rate for audio-band or motor control monitoring. |
| Total Unadjusted Error | ±0.5LSB over –40°C to +85°C - ensures <±2mV absolute accuracy with 5V full-scale reference. |
| Analog Input Range | –0.05V to VCC + 0.05V - accommodates overvoltage transients and allows direct connection to transducers with minimal protection. |
| Reference Interface | Dedicated VREF pin - supports external precision references (e.g., LT1019) or ratiometric use with sensor excitation supplies. |
Pinout & Package
Package: 8-Lead Plastic DIP (N8), –40°C to +85°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 rails to achieve 1nA shutdown current. |
| 2: +IN | Differential Analog Input (Non-Inverting) | High-impedance input (25pF) accepts signals up to VCC + 0.05V; used with –IN for true differential measurement. |
| 3: –IN | Differential Analog Input (Inverting) | Matches +IN characteristics; enables common-mode rejection and offset cancellation in bridge sensor interfaces. |
| 4: GND | Analog Ground Reference | Must connect directly to low-impedance analog ground plane; separates analog return from digital or power grounds. |
| 5: VREF | External Reference Input | Defines full-scale range; supports 2.5V to 5V references; enables ratiometric accuracy with sensor excitation sources. |
| 6: DOUT | Serial Data Output | MSB-first, 8-bit output synchronized to CLK falling edge; tri-state when CS is high. |
| 7: CLK | Serial Shift Clock | Accepts 25kHz–500kHz clock; timing-critical path with 400ns setup/150ns hold requirements at 5V. |
| 8: VCC | Positive Supply Voltage | 3V to 9V operation; requires local 1μF bypass capacitor to GND for stable conversion performance. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 80μA active current enables >10-year battery life in 1-sample-per-second gas gauge applications. |
| True Differential Input | +IN/–IN architecture rejects common-mode noise up to 100mV, eliminating need for external instrumentation amplifiers in strain-gauge interfaces. |
| Integrated Sample-and-Hold | On-chip S/H captures transient signals without external components, reducing BOM count and layout area. |
| Ratiometric Capability | VREF pin allows direct connection to same supply powering resistive sensors, canceling supply drift effects in temperature or pressure measurements. |
| Industrial Temperature Range | –40°C to +85°C rating ensures reliability in automotive cabin modules, industrial PLC I/O, and outdoor environmental monitors. |
Applications
| Battery Monitoring | Isolated Data Acquisition |
|---|---|
|
Use Scenario: Measuring cell voltage in multi-cell Li-ion battery packs with shared ground constraints. IC Role / Device Role / Timing Role: ADC digitizes differential voltage across individual cells while rejecting pack-level common-mode noise. Use Value: Enables accurate state-of-charge estimation using ±0.5LSB error at 5V FS, with 1nA shutdown current preserving standby battery life. |
Use Scenario: Transmitting sensor data across optocoupler or transformer isolation barriers in medical equipment. IC Role / Device Role / Timing Role: Low-power ADC provides clean digital output compatible with isolated serial interfaces, minimizing coupling noise. Use Value: 3-wire interface reduces isolation channel count; 80μA active current limits heat generation in sealed enclosures. |
| Temperature Measurement | Remote Data Acquisition |
|
Use Scenario: Reading thermistor or RTD outputs in distributed building automation nodes powered by energy harvesting. IC Role / Device Role / Timing Role: Ratiometric operation with VREF tied to sensor excitation source cancels supply variation errors. Use Value: Achieves <±2mV absolute accuracy over –40°C to +85°C, supporting Class A temperature sensing per IEC 60751. |
Use Scenario: Environmental monitoring in wireless sensor networks with long-range LoRaWAN backhaul. IC Role / Device Role / Timing Role: ADC samples analog sensors intermittently, then shuts down to conserve energy between transmissions. Use Value: 1nA shutdown current extends coin-cell battery life beyond 5 years at one reading per minute. |
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 | 2.7V–5.25V supply; SPI-compatible 4-wire interface; no dedicated shutdown pin (power-down via command). | Requires microcontroller firmware support for power management; lacks true differential input (single-ended only). | Preferred when existing SPI infrastructure exists and differential input is not required. |
| MAX11100EUA+ | 2.7V–3.6V supply; internal reference; 12-bit resolution; 1.5μs conversion time. | Higher resolution but incompatible with 5V systems; no external VREF option limits ratiometric flexibility. | Selected when higher precision is needed and supply is constrained to 3.3V-only environments. |
Compared with ADS7822U and MAX11100EUA+, the LTC1096AIN8#PBF uniquely combines true differential input, external VREF support, 5V compatibility, and hardware-controlled 1nA shutdown - making it optimal for industrial battery monitoring where supply headroom and noise immunity are critical.
Availability
LTC1096AIN8#PBF is available at Aetrix Electronics and suitable for battery monitoring, isolated data acquisition, and remote sensor applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LTC1096AIN8#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, documentation, and manufacturing continuity for legacy Linear parts including the LTC1096 series.
The LTC1096 family was designed specifically for ultra-low-power, precision analog front-ends in portable and remotely powered instrumentation - emphasizing micropower operation, differential input capability, and robust serial interfacing in compact packages.
FAQ
What is the maximum clock frequency supported by LTC1096AIN8#PBF?
The LTC1096AIN8#PBF supports a maximum clock frequency of 500kHz at 5V supply, enabling a 33kHz sampling rate. At lower supply voltages (e.g., 3V), the maximum clock frequency reduces to 250kHz. The device requires precise timing margins: 400ns setup and 150ns hold time for DIN relative to CLK at 5V, as specified in the recommended operating conditions table.
Does LTC1096AIN8#PBF require an external reference voltage?
No, the LTC1096AIN8#PBF can operate with either an external reference applied to the VREF pin or with VREF tied to VCC for VCC-referenced conversion. Using VCC as reference enables ratiometric measurement when the same supply powers both the ADC and the sensor, eliminating errors due to supply drift. An external reference improves absolute accuracy when high-precision voltage sources like the LT1019 are used.
How does the shutdown mode work on LTC1096AIN8#PBF?
Shutdown on the LTC1096AIN8#PBF is controlled by the CS/SHDN pin: driving it high disconnects internal power rails, reducing supply current to 1nA typical. A 10μs wake-up delay is required after pulling CS low before the first CLK edge to ensure internal biasing stabilizes. This hardware-controlled shutdown requires no software commands, simplifying power management in resource-constrained microcontrollers.
Can LTC1096AIN8#PBF interface directly with an 8051 microcontroller?
Yes, the LTC1096AIN8#PBF is explicitly designed for direct 3-wire interface with 8051-family microcontrollers. Its DOUT pin connects to any GPIO (e.g., P1.2), CLK to another GPIO (e.g., P1.3), and CS/SHDN to a third (e.g., P1.4). The datasheet provides a complete timing diagram showing compatibility with standard 8051 I/O port configurations and confirms operation at 500kHz clock rates typical in such systems.
What is the analog input impedance of LTC1096AIN8#PBF?
The LTC1096AIN8#PBF has an analog input capacitance of 25pF on-channel and 5pF off-channel, with leakage current limited to ±1.0μA over temperature. While not a high-impedance voltage follower, its switched-capacitor input structure presents a dynamic load that settles within the 1.5-clock-cycle sample time. For high-source-impedance sensors (>1kΩ), a simple RC filter (e.g., 1kΩ + 100pF) is recommended to limit charge injection error and ensure ±0.5LSB accuracy.
LTC1096AIN8#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:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
LTC1096AIN8#PBF FAQ
1.How can I place an order for LTC1096AIN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1096AIN8#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 LTC1096AIN8#PBF reliable?
The price and inventory of LTC1096AIN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1096AIN8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1096AIN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1096AIN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1096AIN8#PBF?
LTC1096AIN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1096AIN8#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 LTC1096AIN8#PBF?
For technical support, including LTC1096AIN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1096AIN8#PBF requirements.
6.How does Aetrix verify that LTC1096AIN8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1096AIN8#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 LTC1096AIN8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1096AIN8#PBF?
All LTC1096AIN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1096AIN8#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 LTC1096AIN8#PBF part is unused and in its original packaging.
Return procedure for LTC1096AIN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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