Linear Technology LTC2379CDE-18#PBF
- Part Number:
- LTC2379CDE-18#PBF
- Manufacturer:
- Linear Technology
- Ventron No:
- 3008329-LTC2379CDE-18#PBF
- Description:
- IC ADC 18BIT SPI/SRL 16DFN
- Datasheet:
- LTC2379CDE-18#PBF
Description
The LTC2379-18 is a low-noise, low-power, high-speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2379-18 has a VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2379-18 consumes only 18mW and achieves 2LSB INL maximum, no missing codes at 18 bits with 101.2dB SNR.
The LTC2379-18 has a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V, and 5V logic while also featuring a daisy-chain mode. The fast 1.6Msps throughput with no cycle latency makes the LTC2379-18 ideally suited for a wide variety of high-speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2379-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
The LTC2379-18 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier's negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1 VREF and full-scale code from VREF to 0.9 VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply.
Features
18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
2LSB INL (Max)
Guaranteed 18-Bit No Missing Codes
Low Power: 18mW at 1.6Msps, 18pW at 1.6ksps
101.2dB SNR (typ) at fiN = 2kHz
-120dB THD (typ) at fIN = 2kHz
Digital Gain Compression (DGC)
Guaranteed Operation to 125°C
2.5V Supply
Fully Differential Input Range VREF
VREF Input Range from 2.5V to 5.1V
No Pipeline Delay, No Cycle Latency
1.8V to 5V I/O Voltages
SPI-Compatible Serial I/O with Daisy-Chain Mode
Internal Conversion Clock
16-Lead MSOP and 4mm x 3mm DFN Packages
Applications
Medical Imaging
High Speed Data Acquisition
Portable or Compact Instrumentation
Industrial Process Control
Low Power Battery-Operated Instrumentation
ATE
The LTC2379-18 is a low-noise, low-power, high-speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2379-18 has a VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2379-18 consumes only 18mW and achieves 2LSB INL maximum, no missing codes at 18 bits with 101.2dB SNR.
The LTC2379-18 has a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V, and 5V logic while also featuring a daisy-chain mode. The fast 1.6Msps throughput with no cycle latency makes the LTC2379-18 ideally suited for a wide variety of high-speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2379-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
The LTC2379-18 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier's negative supply while preserving the full resolution of the ADC. When enabled, the ADC performs a digital scaling function that maps zero-scale code from 0V to 0.1 VREF and full-scale code from VREF to 0.9 VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply.
Features
18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR
2LSB INL (Max)
Guaranteed 18-Bit No Missing Codes
Low Power: 18mW at 1.6Msps, 18pW at 1.6ksps
101.2dB SNR (typ) at fiN = 2kHz
-120dB THD (typ) at fIN = 2kHz
Digital Gain Compression (DGC)
Guaranteed Operation to 125°C
2.5V Supply
Fully Differential Input Range VREF
VREF Input Range from 2.5V to 5.1V
No Pipeline Delay, No Cycle Latency
1.8V to 5V I/O Voltages
SPI-Compatible Serial I/O with Daisy-Chain Mode
Internal Conversion Clock
16-Lead MSOP and 4mm x 3mm DFN Packages
Applications
Medical Imaging
High Speed Data Acquisition
Portable or Compact Instrumentation
Industrial Process Control
Low Power Battery-Operated Instrumentation
ATE
Linear Technology LTC2379CDE-18#PBF technical specifications, attributes, parameters and parts with similar specifications to Linear Technology LTC2379CDE-18#PBF.
- Lifecycle StatusPRODUCTION (Last Updated: 1 month ago)
- MountSurface Mount
- Package / CaseDFN
- Number of Pins16
- Max Operating Temperature70°C
- Min Operating Temperature0°C
- Operating Supply Voltage2.5V
- Number of Elements1
- PolarityBipolar
- InterfaceSPI, Serial
- Max Supply Voltage2.625V
- Min Supply Voltage2.375V
- Power Dissipation-Max21.5mW
- Power Dissipation21.5mW
- Number of Bits18
- Supply TypeAnalog, Digital
- Resolution2.25 B
- Sampling Rate1.6 Msps
- Integral Nonlinearity (INL)2 LSB
- Number of Converters1
- RoHS StatusRoHS Compliant
- Lead FreeLead Free
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