LTC1857
PRODUCTION8-Channel, 12-Bit, 100ksps SoftSpan A/D Converters with Shutdown
- Part Models
- 4
- 1ku List Price
- Starting From $11.73
Overview
- Sample Rate: 100ksps
- 8-Channel Multiplexer with ±25V Protection
- Single 5V Supply
- Software-Programmable Input Ranges:
- 0V to 5V, 0V to 10V, ±5V or ±10V
- Single Ended or Differential
- ±3LSB INL for the LTC1859, ±1.5LSB INL for the LTC1858, ±1LSB INL for the LTC1857
- Power Dissipation: 40mW (Typ)
- SPI/MICROWIRETM Compatible Serial I/O
- Power Shutdown: Nap and Sleep
- Signal-to-Noise Ratio: 87dB (Typ) for the LTC1859
- Operates with Internal or External Reference
- Internal Synchronized Clock
- 28-Pin SSOP Package
The LTC1857/LTC1858/LTC1859 are 8-channel, low power, 12-/14-/16-bit, 100ksps, analog-to-digital converters (ADCs). These SoftSpan ADCs can be software programmed for 0V to 5V, 0V to 10V, ±5V or ±10V input spans and operate from a single 5V supply. The 8-channel multiplexer can be programmed for single-ended inputs or pairs of differential inputs or combinations of both. In addition, all channels are fault protected to ±25V. A fault condition on any channel will not affect the conversion result of the selected channel.
An onboard high performance sample-and-hold and precision reference minimize external components. The low 40mW power dissipation is made even more attractive with two user selectable power shutdown modes. DC specifications include ±3LSB INL for the LTC1859, ±1.5LSB INL for the LTC1858 and ±1LSB for the LTC1857.
The internal clock is trimmed for 5µs maximum conversion time and the sampling rate is guaranteed at 100ksps. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.
Applications
- Industrial Process Control
- Multiplexed Data Acquisition Systems
- High Speed Data Acquisition for PCs
- Digital Signal Processing
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1857CG#PBF | 28-Lead SSOP | ||
| LTC1857CG#TRPBF | 28-Lead SSOP | ||
| LTC1857IG#PBF | 28-Lead SSOP | ||
| LTC1857IG#TRPBF | 28-Lead SSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 6, 2022 - 22_0171 Laser Top Mark Conversion for SSOP Packages Assembled in PNG |
||
| LTC1857CG#PBF | PRODUCTION | |
| LTC1857CG#TRPBF | PRODUCTION | |
| LTC1857IG#PBF | PRODUCTION | |
| LTC1857IG#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Interface Transceivers & Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
Tools & Simulations
Linduino 3
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC1859CG Demo Board | 8-Channel, 16-Bit, 100ksps SoftSpan ADC (requires DC2026)