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Analog Devices Inc. LTC1096CS8#TRPBF
- Part No.:
- LTC1096CS8#TRPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1096CS8#TRPBF.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,383
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Product details
Overview
LTC1096CS8#TRPBF 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 draws only 80 μA during conversion at 5 V, powers down to 1 nA typical in shutdown, achieves ±0.5 LSB total unadjusted error over temperature, and operates in 0°C to 70°C ambient - ideal for battery-powered sensor monitoring where low quiescent current and direct transducer interfacing are critical.
For engineers reviewing the LTC1096CS8#TRPBF datasheet, LTC1096CS8#TRPBF pinout, LTC1096CS8#TRPBF application, or LTC1096CS8#TRPBF equivalent, key selection criteria include its 16 μs conversion time, 33 kHz max sampling rate, 8-pin SOIC package, 5 V operation capability, and ratiometric support with external reference - all essential for remote data acquisition, isolated sensing, and precision low-power instrumentation design.
Technical Context
The LTC1096CS8#TRPBF implements a switched-capacitor SAR architecture with on-chip sample-and-hold, enabling accurate DC and low-frequency signal digitization without external hold circuitry. Its differential input stage supports common-mode rejection and ratiometric operation using an external reference voltage applied to VREF.
Control and data transfer occur via a synchronous 3-wire serial interface (CS/SHDN, CLK, DOUT), where CS/SHDN enables conversion and triggers automatic power-down when high, and CLK edges synchronize bit-shifted output of the 8-bit result - eliminating need for parallel bus resources or complex timing coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes - guarantees monotonicity and full code coverage across operating range. |
| Supply Current (Active) | 80 μA max at 5 V - enables multi-year battery life in 200 Hz sampling systems. |
| Supply Current (Shutdown) | 1 nA typical - reduces standby power to negligible levels in intermittently active sensors. |
| Conversion Time | 16 μs - supports up to 33 kHz sampling rate for real-time monitoring of fast transients. |
| Total Unadjusted Error | ±0.5 LSB over temperature - ensures <±2 mV absolute accuracy with 5 V reference, suitable for calibrated industrial sensing. |
| Analog Input Range | –0.05 V to VCC + 0.05 V - allows direct connection to transducers with minimal headroom overhead. |
| Reference Support | External VREF pin - enables ratiometric measurement against sensor excitation or stable bandgap references. |
Pinout & Package
Package: 8-lead plastic SOIC (S8), 150°C maximum junction temperature, 175°C/W thermal resistance (θJA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/SHDN | Chip Select / Shutdown Control | Active-low enable; high state disconnects internal power, reducing supply current to 1 nA. |
| 2: +IN | Differential Analog Input (Positive) | High-impedance input accepting signals up to VCC + 0.05 V; used with –IN for differential measurement. |
| 3: –IN | Differential Analog Input (Negative) | Completes differential pair; enables rejection of common-mode noise and offset in sensor bridges. |
| 4: GND | Analog Ground Reference | Must connect directly to low-noise analog ground plane to maintain ADC accuracy and minimize coupling. |
| 5: VREF | External Reference Voltage Input | Defines full-scale range; supports ratiometric operation and spans as low as 250 mV for 1 mV resolution. |
| 6: DOUT | Serial Data Output | Shifts out 8-bit conversion result MSB-first on falling CLK edges; tri-stated when CS is high. |
| 7: CLK | Serial Shift Clock Input | Synchronizes data transfer; requires 25–500 kHz clock for 5 V operation with defined setup/hold timing. |
| 8: VCC | Positive Supply Voltage | Accepts 3–9 V; must be bypassed locally to GND with low-ESR capacitor to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 80 μA active current enables >5-year operation on a single CR2032 coin cell at 200 Hz sampling. |
| Automatic Power-Down | 1 nA shutdown current eliminates need for external power gating circuitry in sleep-wake architectures. |
| Differential Input Architecture | Supports true differential measurement and common-mode rejection - critical for strain gauge and thermocouple interfaces. |
| 3-Wire Serial Interface | Reduces MCU GPIO count and simplifies isolation barrier implementation using optocouplers or digital isolators. |
| Ratiometric Capability | Enables direct digitization of bridge sensors without gain stages by tying VREF to excitation voltage. |
Applications
| Battery Monitoring | Remote Temperature Sensing |
|---|---|
Use Scenario: Measuring voltage of lithium-ion cells in portable medical devices or IoT edge nodes with limited PCB space and strict energy budgets. IC Role / Device Role / Timing Role: ADC digitizes cell voltage with 1 mV resolution using ratiometric mode and internal sample-and-hold, eliminating external op-amp buffers. Use Value: 80 μA active current extends battery life by >3× versus comparable 10-bit converters; 1 nA shutdown prevents parasitic drain during idle periods. | Use Scenario: Digitizing output of RTD or thermistor-based temperature probes deployed in inaccessible field locations powered by solar-charged batteries. IC Role / Device Role / Timing Role: Differential input rejects common-mode noise from long sensor leads; external VREF enables precise ratio tracking against excitation source. Use Value: ±0.5 LSB error ensures <±2 mV absolute accuracy at 5 V reference, translating to <±0.5°C error in 10 kΩ NTC designs. |
| Isolated Data Acquisition | Industrial Sensor Interface |
Use Scenario: Transmitting analog sensor data across galvanic isolation barriers in factory automation controllers where safety standards mandate reinforced insulation. IC Role / Device Role / Timing Role: 3-wire serial interface minimizes isolation channel count; low power allows isolated side to be powered directly from micro-isolated DC-DC converter. Use Value: Eliminates need for 4+ isolated channels required by parallel-interface ADCs, reducing BOM cost and layout complexity by 40%. | Use Scenario: Interfacing with 4–20 mA loop-powered pressure transmitters in hazardous-area instrumentation requiring intrinsic safety compliance. IC Role / Device Role / Timing Role: High-impedance analog inputs accept transducer outputs directly; 25 pF on-channel capacitance minimizes settling time with low-source-impedance sensors. Use Value: Enables direct connection without op-amp buffer stages, reducing component count, board area, and potential failure points in certified safety-critical modules. |
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 | 2.7–5.25 V supply; 1.25 μs conversion time; SPI-compatible 3-wire interface; no differential input - single-ended only. | Requires external op-amp for differential sensors; higher speed but higher 1.2 mA active current limits battery life. | Select for higher throughput (>500 ksps) in non-battery applications where differential input is not required. |
| MAX11100ASA+ | 2.7–3.6 V supply; 12-bit resolution; 1.5 μs conversion; internal reference; 3-wire SPI interface; differential input supported. | Higher resolution and integrated reference simplify design but require 3.3 V system - incompatible with 5 V-only rails. | Select when 12-bit precision and internal reference outweigh need for 5 V compatibility and ultra-low shutdown current. |
Compared with ADS7822U and MAX11100ASA+, the LTC1096CS8#TRPBF uniquely balances 5 V operation, true differential input, 1 nA shutdown, and 80 μA active current - making it optimal for legacy 5 V sensor nodes where energy efficiency and noise immunity are prioritized over resolution or speed.
Availability
LTC1096CS8#TRPBF is available at Aetrix Electronics and suitable for battery-operated systems, remote data acquisition, and isolated sensor interfaces requiring stable component supply across industrial and medical OEM programs.
Supply support for LTC1096CS8#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 technologies, serving industrial, automotive, communications, and healthcare markets.
The LTC1096CS8#TRPBF belongs to ADI's legacy Linear Technology micropower precision ADC family, designed specifically for ultra-low-power sensor signal conditioning in space-constrained, energy-sensitive applications.
FAQ
What is the maximum sampling frequency supported by the LTC1096CS8#TRPBF?
The LTC1096CS8#TRPBF supports a maximum sampling frequency of 33 kHz under recommended operating conditions (VCC = 5 V, fCLK = 500 kHz). This corresponds to a 16 μs conversion time per sample, verified across the 0°C to 70°C temperature range with ±0.5 LSB total unadjusted error specification maintained.
Does the LTC1096CS8#TRPBF require an external reference voltage?
Yes, the LTC1096CS8#TRPBF requires an external reference voltage applied to the VREF pin to define its full-scale range. It supports ratiometric operation and accepts reference voltages from 2.5 V to 5 V (with VCC ≥ VREF), enabling direct interfacing with sensor excitation sources or precision bandgap references.
Can the LTC1096CS8#TRPBF operate from a 3.3 V supply?
No - the LTC1096CS8#TRPBF is rated for 3 V to 9 V supply operation, but its specified performance (including ±0.5 LSB error and 33 kHz sampling) is guaranteed only at 5 V. At 3.3 V, it falls outside the validated operating range; for 3 V systems, the pin-compatible LTC1096LCS8#TRPBF variant is specified down to 2.65 V.
How does the shutdown mode function on the LTC1096CS8#TRPBF?
The LTC1096CS8#TRPBF enters shutdown mode when the CS/SHDN pin is driven high, disconnecting internal power and reducing supply current to 1 nA typical. Conversion resumes within 10 μs after CS falls, provided the first CLK falling edge occurs ≥10 μs later - a timing requirement confirmed in the device's operating sequence diagrams.
Is the LTC1096CS8#TRPBF compatible with 3-wire SPI interfaces?
The LTC1096CS8#TRPBF uses a proprietary 3-wire synchronous serial interface (CS/SHDN, CLK, DOUT) that is functionally compatible with standard SPI master configurations but lacks DIN - it is transmit-only. MCU firmware must configure the SPI peripheral in 3-wire master mode with MOSI disabled and MISO enabled, matching the LTC1096CS8#TRPBF's timing requirements (e.g., 25–500 kHz CLK, 10 μs wake-up).
LTC1096CS8#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:
- 3V ~ 9V
- Voltage - Supply, Digital:
- 3V ~ 9V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1096CS8#TRPBF FAQ
1.How can I place an order for LTC1096CS8#TRPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1096CS8#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 LTC1096CS8#TRPBF reliable?
The price and inventory of LTC1096CS8#TRPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1096CS8#TRPBF is usually 5 days.
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4.How is shipping managed for LTC1096CS8#TRPBF?
LTC1096CS8#TRPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1096CS8#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 LTC1096CS8#TRPBF?
For technical support, including LTC1096CS8#TRPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1096CS8#TRPBF requirements.
6.How does Aetrix verify that LTC1096CS8#TRPBF is sourced from the original manufacturer or authorized distributors?
All LTC1096CS8#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 LTC1096CS8#TRPBF meets industry standards.
7.What is the process for return or replacement of LTC1096CS8#TRPBF?
All LTC1096CS8#TRPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1096CS8#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 LTC1096CS8#TRPBF part is unused and in its original packaging.
Return procedure for LTC1096CS8#TRPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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