My Inquiry
My Account
Analog Devices Inc. LTC1098CN8#PBF
- Part No.:
- LTC1098CN8#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LTC1098CN8#PBF.pdf
- Description:
- IC ADC 8BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,483
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LTC1098CN8#PBF from Analog Devices (formerly Linear Technology) is a micropower 8-bit successive approximation analog-to-digital converter with integrated sample-and-hold and software-selectable dual-channel multiplexer. It operates from 3V to 6V supply, draws only 88μA typical active current at 500kHz clock, achieves ±0.5LSB total unadjusted error over temperature, and supports up to 33kHz sampling rate. It is used in battery-powered remote data acquisition systems where low quiescent power and direct sensor interfacing are critical.
For engineers reviewing the LTC1098CN8#PBF datasheet, LTC1098CN8#PBF pinout, LTC1098CN8#PBF application, or LTC1098CN8#PBF equivalent, key selection considerations include its 8-pin DIP package, 3-wire serial interface compatibility with microcontrollers, shutdown current of 1nA, 2.65V–6V supply range, and differential MUX capability enabling flexible channel selection without external switching.
Technical Context
The LTC1098CN8#PBF implements a switched-capacitor SAR architecture with on-chip sample-and-hold, supporting both single-ended and differential input configurations via its CH0/CH1 multiplexer. Its serial interface uses synchronous half-duplex timing with CS/SHDN control, requiring precise wake-up timing (10μs) before first CLK edge after chip select assertion.
It features high-impedance analog inputs (±1.0μA leakage), operates ratiometrically or with external reference, and maintains ±0.5LSB linearity error over full temperature range when powered from 5V. The device's 16μs conversion time and 8-clock-cycle internal timing are fixed by internal logic, independent of external clock duty cycle.
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) | 88μA typical at 500kHz clock - enables multi-year operation on coin-cell batteries in intermittent-sampling applications. |
| Supply Current (Shutdown) | 1nA typical - reduces system standby power to negligible levels during idle periods. |
| Sampling Rate | 33kHz maximum - supports real-time monitoring of fast transients in battery voltage or temperature signals. |
| Total Unadjusted Error | ±0.5LSB over temperature - ensures <10mV absolute accuracy for 5V full-scale range without calibration. |
| Conversion Time | 16μs - deterministic latency allows tight synchronization with external event triggers or PWM cycles. |
| Analog Input Range | –0.05V to VCC + 0.05V - permits direct connection to sensors operating near rail, eliminating level-shifting circuitry. |
Pinout & Package
Package: 8-Lead Plastic DIP (N8), 0°C to 70°C operating temperature range, lead-free finish (PBF).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: CS/SHDN | Chip Select / Shutdown Control | Active-low enable; high state disconnects internal power rails, reducing ICC to 1nA - critical for ultra-low-power duty-cycled systems. |
| 2: CH0 | Analog Input Channel 0 | High-impedance (25pF), ±1.0μA leakage input - accepts direct connection to thermistors or battery sense points without buffer amplifiers. |
| 3: CH1 | Analog Input Channel 1 | Identical electrical characteristics to CH0; software-selectable via DIN bitstream - enables dual-sensor monitoring with single ADC. |
| 4: GND | Analog Ground Reference | Must connect directly to analog ground plane; separates noise-sensitive conversion circuitry from digital return paths. |
| 5: DIN | Digital Input (MUX Address) | Serial address bit for channel selection (CH0/CH1); sampled on rising CLK edge - defines which channel is converted in next cycle. |
| 6: DOUT | Digital Output (Data) | MSB-first serial output; data valid 200–450ns after CLK↓ - compatible with standard 8051, PIC, and ARM GPIO bit-banging interfaces. |
| 7: CLK | Serial Shift Clock | Asynchronous master clock; falling edge shifts data out, rising edge latches DIN - supports variable clock rates from 25kHz to 500kHz. |
| 8: VCC (VREF) | Power Supply / Reference Input | Single-pin supply/reference; sets full-scale range (e.g., 5V → 19.6mV/LSB); bypassing to GND essential for <±0.5LSB accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Software-selectable 2-channel MUX | Enables dynamic channel routing via serial command - eliminates need for external analog switches in multi-sensor nodes. |
| 1nA shutdown current | Reduces average system power by >99% during idle intervals - extends battery life in wireless sensor endpoints beyond 5 years. |
| Direct 3-wire serial interface | Requires only CLK, DIN, DOUT (plus CS) - simplifies PCB routing and firmware implementation versus SPI/I²C peripherals. |
| Sample-and-hold integrated | Eliminates external S/H circuitry and associated layout sensitivity - improves noise immunity in high-impedance sensor applications. |
| Ratiometric operation support | Allows use of same supply as reference - removes need for precision voltage reference IC, reducing BOM count and cost. |
Applications
| Battery Monitoring | Remote Temperature Sensing |
|---|---|
Use Scenario: Continuous measurement of Li-ion cell voltage during charging/discharging cycles in portable medical devices. IC Role / Device Role / Timing Role: ADC samples CH0 (cell voltage) and CH1 (pack temperature) alternately every 100ms; CS toggled per sample to minimize average current. Use Value: 88μA active current and 1nA shutdown enable >3-year battery life on CR2032; ±0.5LSB error ensures accurate state-of-charge estimation within ±2%. |
Use Scenario: Wireless environmental node measuring ambient and heatsink temperature using NTC thermistors. IC Role / Device Role / Timing Role: LTC1098CN8#PBF converts CH0 (ambient) and CH1 (heatsink) sequentially; DIN selects channel before each conversion. Use Value: High-impedance inputs accept 10kΩ NTCs directly; 33kHz max sampling supports oversampling for 12-bit effective resolution in post-processing. |
| Isolated Data Acquisition | Industrial Battery Gas Gauging |
Use Scenario: Voltage/current sensing across isolation barrier in motor drive inverters using optocoupler-based serial link. IC Role / Device Role / Timing Role: ADC digitizes isolated analog signals; 3-wire interface crosses barrier with minimal component count and timing skew. Use Value: Deterministic 16μs conversion time and 10μs wake-up allow precise synchronization with gate driver timing; 1nA shutdown prevents leakage-induced drift in isolated domains. |
Use Scenario: Fuel gauge in industrial UPS systems tracking lead-acid battery health via voltage, current, and temperature. IC Role / Device Role / Timing Role: LTC1098CN8#PBF monitors CH0 (battery voltage), CH1 (shunt voltage), and external temperature sensor via shared GND-referenced design. Use Value: Ratiometric operation with VCC = 5V reference eliminates reference drift errors; ±0.5LSB TUE ensures <1% capacity estimation error over 0°C–70°C range. |
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; 1μA shutdown current; no integrated MUX. | Requires external MUX for dual-channel use; higher minimum supply voltage limits 3V-only designs. | Select when SPI-native interface is preferred and external channel selection is acceptable. |
| MAX1110CPA+ | 2.7V–5.25V supply; 3-wire interface; 2.5μA shutdown; single-ended inputs only; no MUX. | Lacks differential or dual-channel capability; higher shutdown current increases long-term energy budget. | Choose for cost-sensitive single-input applications where MUX functionality is unnecessary. |
Compared with ADS7822U and MAX1110CPA+, the LTC1098CN8#PBF uniquely integrates a software-selectable 2-channel MUX and achieves 1nA shutdown - making it optimal for space-constrained, battery-limited dual-sensor systems requiring minimal external components and lowest possible standby power.
Availability
LTC1098CN8#PBF is available at Aetrix Electronics and suitable for battery monitoring, remote temperature sensing, and isolated data acquisition requiring stable component supply across industrial and medical OEM programs.
Supply support for LTC1098CN8#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. (acquired Linear Technology in 2017) is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors.
The LTC1098 series belongs to Linear's legacy micropower precision ADC product line, designed specifically for ultra-low-power sensor interface and portable instrumentation applications demanding sub-100μA active current and nanoscale shutdown.
FAQ
What is the maximum clock frequency supported by the LTC1098CN8#PBF?
The LTC1098CN8#PBF supports a maximum clock frequency of 500kHz when operating from a 5V supply. At this rate, it achieves a 33kHz sampling frequency and 88μA typical supply current. Clock frequencies above 500kHz are not guaranteed and may degrade linearity or cause timing violations in the serial interface.
Does the LTC1098CN8#PBF require an external voltage reference?
No - the LTC1098CN8#PBF uses its VCC pin as the reference input (VCC/VREF), enabling ratiometric operation. This eliminates the need for an external precision reference and simplifies design when supply voltage stability meets application accuracy requirements (±0.5LSB TUE is specified with VCC = VREF = 5V).
How does the channel selection work on the LTC1098CN8#PBF?
Channel selection on the LTC1098CN8#PBF is performed via the DIN pin: a logic high on DIN before conversion selects CH1, while a logic low selects CH0. The selected channel is sampled during the subsequent conversion cycle, and the result is shifted out on DOUT in MSB-first format.
What is the wake-up time requirement for the LTC1098CN8#PBF after CS assertion?
The LTC1098CN8#PBF requires a 10μs wake-up time from CS falling edge to the falling edge of the MSB clock pulse. This timing is critical to ensure internal biasing settles before conversion begins; failure to meet it may result in offset or gain errors exceeding ±0.5LSB specification.
Can the LTC1098CN8#PBF operate from a 3.3V supply?
Yes - the LTC1098CN8#PBF is rated for 3V to 6V operation. At 3.3V, it supports up to 250kHz clock frequency and maintains ±1.0LSB total unadjusted error over temperature. Its analog input range becomes –0.05V to 3.35V, and output logic levels remain compatible with 3.3V microcontrollers.
LTC1098CN8#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, 2
- 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 ~ 6V
- Voltage - Supply, Digital:
- 3V ~ 6V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
LTC1098CN8#PBF FAQ
1.How can I place an order for LTC1098CN8#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1098CN8#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 LTC1098CN8#PBF reliable?
The price and inventory of LTC1098CN8#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1098CN8#PBF is usually 5 days.
3.What payment methods are accepted for LTC1098CN8#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1098CN8#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1098CN8#PBF?
LTC1098CN8#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1098CN8#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 LTC1098CN8#PBF?
For technical support, including LTC1098CN8#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1098CN8#PBF requirements.
6.How does Aetrix verify that LTC1098CN8#PBF is sourced from the original manufacturer or authorized distributors?
All LTC1098CN8#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 LTC1098CN8#PBF meets industry standards.
7.What is the process for return or replacement of LTC1098CN8#PBF?
All LTC1098CN8#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1098CN8#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 LTC1098CN8#PBF part is unused and in its original packaging.
Return procedure for LTC1098CN8#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LTC1098CN8#PBF Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
