LINEAR LTC1863 LTC1867 Data Sheet User's Manual
Summary
The LTC1863/LTC1867 is a high-performance 12-/16-bit, 8-channel Analog-to-Digital Converter (ADC) designed for demanding data acquisition systems. This manual provides comprehensive technical details on this ultra-low-power converter, which operates at up to 200ksps and features an internal multiplexer for complex signal conditioning. Ideal for industrial control, battery-operated devices, and imaging applications requiring high accuracy ($\approx$89dB SNR) and minimal power draw.
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LTC1863/LTC1867 12-/16-Bit, 8-Channel 200ksps ADCs
FEATURES DESCRIPTIO Sample Rate: 200ksps The LTC®1863/LTC1867 are pin-compatible, 8-channel 16-Bit No Missing Codes and ±2LSB Max INL 12-/16-bit A/D converters with serial I/O, and an internal 8-Channel Multiplexer with: reference. The ADCs typically draw only 1.3m A from a Single Ended or Differential Inputs and single 5V supply. Unipolar or Bipolar Conversion Modes
The 8-channel input multiplexer can be configured for
SPI/MICROWIRETM Serial I/O
either single-ended or differential inputs and unipolar
Signal-to-Noise Ratio: 89d B
or bipolar conversions (or combinations thereof). The
Single 5V Operation
automatic nap and sleep modes benefit power sensitive
On-Chip or External Reference
applications.
Low Power: 1.3m A at 200ksps, 0.76m A at 100ksps
Sleep Mode The LTC1867’s DC performance is outstanding with a Automatic Nap Mode Between Conversions ±2LSB INL specification and no missing codes over tem- 16-Pin Narrow SSOP Package perature. The signal-to-noise ratio (SNR) for the LTC1867 is typically 89d B, with the internal reference.
IN (L BS
APPLICATIO S
Housed in a compact, narrow 16-pin SSOP package, the
Industrial Process Control
LTC1863/LTC1867 can be used in space-sensitive as well
High Speed Data Acquisition
as low-power applications.
Battery Operated Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
Multiplexed Data Acquisition Systems MICROWIRE is a trademark of National Semiconductor Corp. Imaging Systems
BLOCK DIAGRA
Integral Nonlinearity vs Output Code
(LTC1867)
LTC1863/LTC1867 1.5
CH0 VDD CH1 GND
CH2 SDI
ANALOG 12-/16-BIT
CH3 SERIAL SDO 0.5
INPUT 200ksps
CH4 PORT SCK
MUX ADC
CH5 CS/CONV CH6 VREF
INTERNAL
CH7/COM 0.5
2.5V REF
REFCOMP 1.5
18637 BD
OUTPUT CODE
18637 GO1
Page Summary Contents For LINEAR LTC1863 LTC1867 Data Sheet User's Manual
Manual Details
| Brand | Linear |
|---|---|
| Pages | 16 |
| File Size | 333.88 KB |
| Published | May 29, 2026 |
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Frequently Asked Questions
What is the typical Signal-to-Noise Ratio (SNR) of this ADC at 1kHz?
The typical SNR provided is 89 dB for LTC1867/LTC1863.
Can the device handle both bipolar and unipolar signal conversions?
Yes, it supports Unipolar Mode (0-4.096V) as well as Bipolar Model inputs (-2.048V).
What are the standard operating temperature limits for this chip?
The specified operating range is 0°C to 70°C, although certain packages support –40°C to 85°C.
How does the device handle multiple input channels?
It includes an internal multiplexer that can configure inputs from Analog (CH0-CH7/COM) and Digital signals.