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Analog Devices Inc. LTC1196-1ACS8#PBF
- Part No.:
- LTC1196-1ACS8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LTC1196-1ACS8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:136
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Product details
Overview
LTC1196-1ACS8#PBF from Analog Devices (formerly Linear Technology) is a high-speed, 8-bit successive approximation ADC with differential analog inputs, SO-8 package, and 1Msps sampling rate at 5V supply. It features ±1/2 LSB total unadjusted error over temperature, 3-wire serial I/O, and operates from 2.7V to 6V. Designed for compact data acquisition in disk drives and portable instrumentation.
For engineers reviewing the LTC1196-1ACS8#PBF datasheet, LTC1196-1ACS8#PBF pinout, LTC1196-1ACS8#PBF application, or LTC1196-1ACS8#PBF equivalent, key selection criteria include differential input support, 1MHz sampling capability at 5V, auto-shutdown current <1μA (not applicable to LTC1196), reference flexibility (external VREF), and SO-8 thermal performance (θJA = 175°C/W).
Technical Context
The LTC1196-1ACS8#PBF implements a switched-capacitor SAR architecture with integrated sample-and-hold, enabling full-accuracy input bandwidth up to 1MHz. Its differential input stage supports ratiometric operation and direct connection to low-impedance signal sources without gain stages.
It uses a 3-wire serial interface (CS, CLK, DOUT) with MSB-first output and null-bit preamble. Conversion timing is synchronized to external clock edges, with tCONV = 600ns (min) and fSMPL(MAX) = 1.00MHz at VCC = 5V, requiring precise setup/hold timing on CS and CLK per AC specifications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete digital codes for analog input quantization |
| Max Sampling Rate | 1.00 MHz at VCC = 5V - enables real-time capture of signals up to ~400 kHz Nyquist bandwidth |
| Total Unadjusted Error | ±1/2 LSB (Grade A) - ensures monotonicity and no missing codes across full temperature range |
| Supply Voltage Range | 2.7V to 6V - supports battery-powered (3V) and industrial (5V) systems without level-shifting |
| Power Dissipation | 50 mW at 5V - enables high-speed operation in thermally constrained SO-8 packages |
| Analog Input Type | Differential (IN+, IN–) - rejects common-mode noise and supports floating signal sources |
| Reference Interface | External VREF pin - allows precision scaling independent of supply rail (e.g., 2.5V or 5V reference) |
Pinout & Package
Package: 8-Lead Plastic SO (SO-8), 175°C/W junction-to-ambient thermal resistance, lead-free finish (PBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable; initiates conversion sequence and serial data transfer when pulled LOW |
| +IN (Pin 2) | Differential Analog Input | Non-inverting input; accepts signals referenced to –IN, supporting common-mode voltage up to VCC |
| –IN (Pin 3) | Differential Analog Input | Inverting input; defines common-mode reference point; must be low-noise and stable |
| GND (Pin 4) | Analog Ground | Primary return path for analog circuitry; requires dedicated low-impedance connection to analog ground plane |
| VREF (Pin 5) | External Reference Input | Sets full-scale input span (e.g., 0V to VREF); decoupling required for noise immunity |
| DOUT (Pin 6) | Serial Data Output | MSB-first 8-bit result with two leading null bits; tri-state when CS HIGH |
| CLK (Pin 7) | Serial Clock Input | Synchronizes all internal timing; max 14.4 MHz at 5V; defines conversion cycle duration |
| VCC (Pin 8) | Power Supply | Provides core logic and analog bias; requires local 1μF bypass to GND for stability |
Key Features
| Feature | Design Value |
|---|---|
| Differential analog input | Enables rejection of common-mode noise and measurement of floating signals without isolation amplifiers |
| External reference input (VREF) | Permits precise full-scale definition independent of VCC, supporting ratiometric sensor interfaces |
| 1Msps sampling at 5V | Meets real-time requirements for high-bandwidth applications like motor control feedback and audio digitization |
| ±1/2 LSB total unadjusted error | Guarantees monotonic transfer function and eliminates need for calibration in Grade A devices |
| SO-8 package with 175°C/W θJA | Enables high-density PCB layouts while maintaining thermal safety margin under continuous 50mW operation |
Applications
| Disk Drive Read Channel | Portable Instrumentation |
|---|---|
Use Scenario: Digitizing analog servo position signals and head readback waveforms in HDD actuator control loops. IC Role / Device Role / Timing Role: High-speed ADC capturing 500kHz–1MHz analog feedback for closed-loop servo correction. Use Value: 1Msps sampling ensures sufficient oversampling ratio (>2×) for accurate position estimation and jitter reduction. | Use Scenario: Battery-powered handheld multimeters or oscilloscope probes acquiring transient voltage/current waveforms. IC Role / Device Role / Timing Role: Primary analog front-end digitizer interfacing directly to passive probes or shunt resistors. Use Value: Differential input and 1V–5V programmable span eliminate external op-amp gain stages, reducing BOM count and power. |
| Industrial Sensor Interface | Motor Control Feedback |
Use Scenario: Converting outputs from isolated current/voltage sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Precision ADC accepting ratiometric signals from bridge-based transducers (e.g., strain gauges). Use Value: External VREF pin allows matching reference to excitation source, canceling supply drift errors. | Use Scenario: Sampling phase currents in three-phase inverter drives for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Synchronized current-sense ADC providing timely feedback to DSP/FPGA PWM controllers. Use Value: 600ns conversion time enables sub-microsecond current loop updates at 10–20kHz switching frequencies. |
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 | Single-ended input only; 1.25Msps max; SPI-compatible 3-wire interface; 2.7–5.25V supply | Lacks differential input and external VREF - unsuitable for floating or ratiometric sensor interfaces | Select when single-ended signals dominate and board space permits larger SO-16 package |
| MAX1113ECM+ | Differential input supported; 1.2Msps; SPI interface; 2.7–3.6V supply only; no external VREF pin | Fixed internal reference limits full-scale flexibility; incompatible with 5V systems | Prefer for ultra-low-power 3V-only designs where external reference is not required |
Compared with ADS7822U and MAX1113ECM+, the LTC1196-1ACS8#PBF uniquely combines differential input, external VREF, 5V operation, and guaranteed ±1/2 LSB error - making it optimal for precision ratiometric and floating-signal acquisition where reference independence and common-mode rejection are critical.
Availability
LTC1196-1ACS8#PBF is available at Aetrix Electronics and suitable for disk drive read channels, portable instrumentation, and industrial sensor interfaces requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for LTC1196-1ACS8#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, serving industrial, automotive, communications, and healthcare markets.
The LTC1196-1ACS8#PBF belongs to ADI's legacy Linear Technology precision data converter family, engineered for high-speed, low-power, and small-footprint analog-to-digital conversion in space-constrained embedded systems.
FAQ
What is the maximum sampling rate of the LTC1196-1ACS8#PBF at 5V supply?
The LTC1196-1ACS8#PBF achieves a maximum sampling rate of 1.00 MHz when operated at VCC = 5V, as specified in the AC Characteristics table under fSMPL(MAX) for LTC1196-1. This requires a 14.4 MHz clock input and meets timing constraints including tCYC = 12 CLK cycles per conversion.
Does the LTC1196-1ACS8#PBF support differential input operation?
Yes, the LTC1196-1ACS8#PBF features true differential analog inputs (+IN and –IN pins), allowing it to measure the voltage difference between two points while rejecting common-mode noise - a key capability confirmed in the Pin Functions and Applications Information sections of the datasheet.
Can the LTC1196-1ACS8#PBF operate from a 3V supply?
Yes, the LTC1196-1ACS8#PBF is fully specified for operation from 2.7V to 6V. At VCC = 3V, its maximum sampling rate drops to 450 kHz (LTC1196-1), and power dissipation reduces to 10 mW, making it suitable for battery-powered portable instrumentation.
What is the total unadjusted error specification for the LTC1196-1ACS8#PBF?
The LTC1196-1ACS8#PBF (Grade A version) is specified with ±1/2 LSB total unadjusted error over the full operating temperature range (0°C to 70°C), encompassing offset, full-scale, linearity, and multiplexer errors - ensuring monotonic behavior and no missing codes without calibration.
Is the LTC1196-1ACS8#PBF pin-compatible with the LTC1198 series?
No, the LTC1196-1ACS8#PBF is not pin-compatible with LTC1198 variants: LTC1196 uses VREF (Pin 5) and differential IN+ / IN– (Pins 2/3), whereas LTC1198 substitutes DIN (Pin 5) and single-ended CH0 / CH1 (Pins 2/3). Their pin functions differ fundamentally, requiring PCB layout changes for substitution.
LTC1196-1ACS8#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:
- -
LTC1196-1ACS8#PBF FAQ
1.How can I place an order for LTC1196-1ACS8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1196-1ACS8#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 LTC1196-1ACS8#PBF reliable?
The price and inventory of LTC1196-1ACS8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1196-1ACS8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1196-1ACS8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1196-1ACS8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1196-1ACS8#PBF?
LTC1196-1ACS8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1196-1ACS8#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 LTC1196-1ACS8#PBF?
For technical support, including LTC1196-1ACS8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1196-1ACS8#PBF requirements.
6.How does Aetrix verify that LTC1196-1ACS8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1196-1ACS8#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 LTC1196-1ACS8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1196-1ACS8#PBF?
All LTC1196-1ACS8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1196-1ACS8#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 LTC1196-1ACS8#PBF part is unused and in its original packaging.
Return procedure for LTC1196-1ACS8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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