LTC2345-16
PRODUCTIONOctal, 16-Bit, 200ksps Differential SoftSpan ADC with Wide Input Common Mode Range
- Part Models
- 6
- 1ku List Price
- Starting From $17.13
Part Details
- 200ksps per Channel Throughput
- Eight Simultaneous Sampling Channels
- ±1.25LSB INL (Maximum)
- Guaranteed 16-Bit, No Missing Codes
- Differential, Wide Common Mode Range Inputs
- Per-Channel SoftSpan Input Ranges:
- ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V
- ±5V, 0V to 5V, ±2.5V, 0V to 2.5V
- 91dB Single-Conversion SNR (Typical)
- −113dB THD (Typical) at fIN = 2kHz
- 102dB CMRR (Typical) at fIN = 200Hz
- Rail-to-Rail Input Overdrive Tolerance
- Guaranteed Operation to 125°C
- Integrated Reference and Buffer (4.096V)
- SPI CMOS (1.8V to 5V) and LVDS Serial I/O
- Internal Conversion Clock, No Cycle Latency
- 81mW Power Dissipation (Typical)
- 48-Lead (7mm x 7mm) QFN Package
The LTC2345-16 is a 16-bit, low noise 8-channel simultaneous sampling successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V low voltage supply and using the internal reference and buffer, each channel of this SoftSpanTM ADC can be independently configured on a conversion-by-conversion basis to accept ±4.096, 0V to 4.096V, ±2.048V, or 0V to 2.048V signals. Individual channels may also be disabled to increase throughput on the remaining channels.
The wide input common mode range and 102dB CMRR of the LTC2345-16 analog inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. This input signal flexibility, combined with ±1.25LSB INL, no missing codes at 16 bits, and 91dB SNR, makes the LTC2345-16 an ideal choice for many applications requiring wide dynamic range.
The LTC2345-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces. Between one and eight lanes of data output may be employed in CMOS mode, allowing the user to optimize bus width and throughput.
Applications
- Programmable Logic Controllers
- Industrial Process Control
- Medical Imaging
- High Speed Data Acquisition
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 |
|---|---|---|---|
| LTC2345CUK-16#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2345CUK-16#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2345HUK-16#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2345HUK-16#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2345IUK-16#PBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) | ||
| LTC2345IUK-16#TRPBF | 48-Lead QFN (7mm x 7mm x 0.75mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 2
LinearLab Tools
A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| High Speed Op Amps (Bandwidth ≥ 50MHz) 1 | ||
| LTC6252 | LAST TIME BUY | 720MHz, 3.5mA Power Efficient Rail-to-Rail I/O Op Amps |
| Series Voltage References 1 | ||
| LTC6655 | PRODUCTION | 0.25ppm Noise, Low Drift Precision References |
| Simultaneous Sampling A/D Converters 1 | ||
| LTC2348-16 | PRODUCTION | Octal, 16-Bit, 200ksps Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range |
| SPI Isolators 1 | ||
| LTM2893 | PRODUCTION | 100MHz Isolated ADC Serial Interface |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC2345-18 | PRODUCTION | Octal, 18-Bit, 200ksps Differential SoftSpan ADC with Wide Input Common Mode Range |
Evaluation Kits
LTC2345-16 Demo Board | Octal, 16-Bit, 200ksps Simultaneous Sampling SAR ADC (Requires DC590, DC2026 or DC890)