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Analog Devices Inc. LTC1196-2ACS8#PBF
- Part No.:
- LTC1196-2ACS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1196-2ACS8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,702
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Product details
Overview
LTC1196-2ACS8#PBF from Analog Devices (formerly Linear Technology) is a high-speed, 8-bit successive approximation ADC with differential analog inputs, SO-8 package, and 1MHz sampling rate at 5V supply. It features ±1/2 LSB total unadjusted error over temperature, 3-wire serial interface, and operates from 2.7V to 6V. Designed for compact data acquisition in disk drives and portable instrumentation.
For engineers reviewing the LTC1196-2ACS8#PBF datasheet, LTC1196-2ACS8#PBF pinout, LTC1196-2ACS8#PBF application, or LTC1196-2ACS8#PBF equivalent, key selection criteria include guaranteed 1MHz sampling at 5V, differential input architecture, ±1/2 LSB TUE grade A specification, SO-8 thermal performance (θJA = 175°C/W), and auto-shutdown compatibility with system-level power sequencing.
Technical Context
The LTC1196-2ACS8#PBF implements a switched-capacitor SAR architecture with integrated sample-and-hold, supporting full-accuracy input bandwidth up to 1MHz. Its differential input stage accepts ±0.05V to VCC+0.05V common-mode range and enables ratiometric operation with external references or direct connection to low-impedance signal sources without gain stages.
It uses a 3-wire serial interface (CS, CLK, DOUT) with MSB-first output format and fixed 8.5-clock conversion cycle. Timing is specified for both 5V (fCLK ≤ 12.0 MHz) and 2.7V (fCLK ≤ 4.0 MHz) operation, with tCONV = 600 ns (5V) / 1.58 μs (2.7V), and supports clock rates down to 10 kHz for low-power applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit with no missing codes - guarantees monotonic transfer function for control-loop feedback. |
| Max Sampling Rate | 1.00 MHz at VCC = 5V - enables real-time capture of signals up to 500 kHz Nyquist bandwidth. |
| Total Unadjusted Error | ±1/2 LSB (Grade A) over 0°C to 70°C - eliminates need for system-level calibration in moderate-precision applications. |
| Supply Current | 11 mA at 5V, 1Msps - delivers 90.9 kSPS/mW efficiency, critical for battery-operated systems. |
| Analog Input Type | Differential (IN+, IN–) with 30 pF on-channel capacitance - rejects common-mode noise and supports floating sensor interfaces. |
| Reference Interface | Separate VREF pin (0.05V to VCC+0.05V range) - allows flexible scaling from 1V to 5V full-scale spans without external dividers. |
| Serial Interface | 3-wire (CS, CLK, DOUT), MSB-first, 8.5-cycle conversion - compatible with FPGA GPIO, microcontroller SPI modes, and ASIC shift registers. |
Pinout & Package
Package: 8-lead plastic SO (SO-8), 150°C max junction temperature, θJA = 175°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CS | Chip Select Input | Active-low enable; must be held HIGH between conversions to disable serial interface and reduce leakage. |
| 2 +IN | Differential Analog Input (+) | High-impedance input (±1 μA leakage); connects to positive side of differential sensor or signal source. |
| 3 –IN | Differential Analog Input (–) | Matches +IN characteristics; enables true differential measurement rejecting common-mode interference. |
| 4 GND | Analog Ground | Must tie directly to low-noise analog ground plane; separates analog and digital return paths. |
| 5 VREF | External Reference Input | Defines full-scale range; supports 1V–5V spans; bypassing to GND essential for AC accuracy. |
| 6 DOUT | Serial Data Output | CMOS-compatible output; data valid 55 ns after CLK↑ (5V); tri-states when CS HIGH. |
| 7 CLK | Serial Clock Input | Accepts 0.01–12.0 MHz (5V); timing-critical for synchronization with host controller. |
| 8 VCC | Power Supply | 2.7V–6V operation; requires local 1μF ceramic bypass to GND; ripple directly impacts SNR. |
Key Features
| Feature | Design Value |
|---|---|
| Differential input architecture | Enables rejection of EMI and ground bounce in noisy embedded environments without external instrumentation amps. |
| ±1/2 LSB total unadjusted error (Grade A) | Guarantees monotonicity and predictable code transitions across 0°C–70°C, reducing firmware compensation overhead. |
| 1V–5V programmable input span via VREF | Eliminates external gain resistors for sensors with sub-1V outputs (e.g., thermocouples, bridge transducers). |
| 600 ns conversion time at 5V | Supports closed-loop control at >1 kHz update rates with minimal latency in motor drive or power supply feedback. |
| 3-wire serial interface with no DIN requirement | Reduces host GPIO count vs. parallel or 4-wire SPI; simplifies PCB routing in space-constrained SO-8 layouts. |
Applications
| Disk Drive Read Channel | Portable Oscilloscope Front-End |
|---|---|
Use Scenario: Digitizing analog servo position signals and read/write channel waveforms in 2.5" HDDs. IC Role / Device Role / Timing Role: High-speed ADC capturing 500 kHz–1 MHz analog waveforms with minimal latency for real-time head positioning. Use Value: 1 MHz sampling ensures ≥2× oversampling of servo tones; differential inputs reject motor commutation noise coupled into analog traces. |
Use Scenario: Signal acquisition in handheld oscilloscopes with 1–5 MHz bandwidth requirements. IC Role / Device Role / Timing Role: Primary sampling ADC interfacing directly to probe amplifier output with configurable 1–5 V full-scale range. Use Value: SO-8 footprint and 10 mW (3V) / 50 mW (5V) dissipation enable fanless thermal design; ±1/2 LSB TUE avoids per-unit calibration. |
| Battery-Powered Data Logger | Industrial Sensor Interface Module |
Use Scenario: Multi-channel environmental monitoring (temperature, humidity, pressure) in remote field units. IC Role / Device Role / Timing Role: Low-power ADC acquiring conditioned sensor outputs at 1–10 kSPS with automatic sleep/wake via CS control. Use Value: 11 mA active current and <1 μA shutdown leakage (via CS HIGH) extend AA battery life to >1 year in duty-cycled operation. |
Use Scenario: Isolated analog input module converting 4–20 mA or ±10 V industrial signals for PLC analog input cards. IC Role / Device Role / Timing Role: Precision front-end ADC accepting ratiometric reference from isolated DC-DC converter. Use Value: Separate VREF pin enables direct connection to isolated reference, eliminating error from VCC ripple; 30 pF input capacitance minimizes filter complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit, 250 kSPS, single-ended input, SPI interface, 3.3V only | Limited to lower sampling rates and lacks differential input; requires level-shifting for 5V systems | Select when cost sensitivity outweighs speed/differential needs and 3.3V-only operation is acceptable |
| MAX11100ETE+ | 8-bit, 3 Msps, differential input, 1.8–3.6V supply, internal reference | Higher speed but narrower voltage range; internal reference reduces flexibility vs. external VREF | Select for ultra-low-voltage battery systems needing >1 Msps where external reference isn't required |
Compared with ADS7822U and MAX11100ETE+, the LTC1196-2ACS8#PBF uniquely balances 1 Msps sampling, differential input, wide 2.7–6V supply range, and external VREF flexibility-making it optimal for mixed-voltage industrial and portable designs requiring precision without calibration.
Availability
LTC1196-2ACS8#PBF is available at Aetrix Electronics and suitable for disk drive read channels, portable instrumentation, and battery-powered data loggers requiring stable component supply across extended production cycles.
Supply support for LTC1196-2ACS8#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) is a global leader in high-performance analog, mixed-signal, and digital signal processing ICs, serving industrial, automotive, communications, and healthcare markets.
The LTC1196 family was designed for compact, high-speed data acquisition in space- and power-constrained systems-emphasizing low-latency conversion, differential noise immunity, and seamless integration with microcontrollers and FPGAs.
FAQ
What is the maximum sampling rate of the LTC1196-2ACS8#PBF at 5V supply?
The LTC1196-2ACS8#PBF achieves a maximum sampling rate of 1.00 MHz at VCC = 5V, as confirmed in the AC Characteristics table under fSMPL(MAX) for LTC1196-2 variants. This is enabled by a 12.0 MHz maximum clock frequency and 600 ns conversion time, supporting real-time capture of signals up to 500 kHz.
Does the LTC1196-2ACS8#PBF support differential input operation?
Yes, the LTC1196-2ACS8#PBF features true differential analog inputs (+IN and –IN pins) as explicitly defined in the Pin Functions section and Block Diagram. This architecture provides common-mode noise rejection and enables measurement of floating signals without level-shifting circuitry.
What is the total unadjusted error specification for the LTC1196-2ACS8#PBF over temperature?
The LTC1196-2ACS8#PBF is a Grade A device with total unadjusted error (TUE) of ±1/2 LSB over the full operating temperature range of 0°C to 70°C. This value includes offset, full-scale, linearity, and multiplexer errors, and is guaranteed-not typical-per the CONVERTER AND MULTIPLEXER CHARACTERISTICS table.
Can the LTC1196-2ACS8#PBF operate from a 3V supply?
Yes, the LTC1196-2ACS8#PBF operates from 2.7V to 6V. At 2.7V, it delivers up to 333 kHz maximum sampling rate with 1.58 μs conversion time and 2.0 mA supply current, maintaining ±1/2 LSB TUE. The RECOMMENDED OPERATING CONDITIONS table confirms 2.7V min for all variants including LTC1196-2.
Is an external reference required for the LTC1196-2ACS8#PBF?
Yes, the LTC1196-2ACS8#PBF requires an external reference applied to the VREF pin. Unlike some ADCs with internal references, this device uses VREF to define its full-scale input span (1V to 5V), enabling precise ratiometric measurements and flexibility across varying sensor output ranges.
LTC1196-2ACS8#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Differential
- 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:
- 2.7V ~ 6V
- Voltage - Supply, Digital:
- 2.7V ~ 6V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-SO
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
LTC1196-2ACS8#PBF FAQ
1.How can I place an order for LTC1196-2ACS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1196-2ACS8#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 LTC1196-2ACS8#PBF reliable?
The price and inventory of LTC1196-2ACS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1196-2ACS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1196-2ACS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1196-2ACS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1196-2ACS8#PBF?
LTC1196-2ACS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1196-2ACS8#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 LTC1196-2ACS8#PBF?
For technical support, including LTC1196-2ACS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1196-2ACS8#PBF requirements.
6.How does Aetrix verify that LTC1196-2ACS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1196-2ACS8#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 LTC1196-2ACS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1196-2ACS8#PBF?
All LTC1196-2ACS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1196-2ACS8#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 LTC1196-2ACS8#PBF part is unused and in its original packaging.
Return procedure for LTC1196-2ACS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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