LTC2335-18 Series

18-Bit, 1Msps 8-Channel Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range

Catalog

18-Bit, 1Msps 8-Channel Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range

Part	Number of Inputs	Sampling Rate (Per Second)	Operating Temperature [Max]	Operating Temperature [Min]	Ratio - S/H:ADC	Number of A/D Converters	Package / Case	Supplier Device Package	Reference Type	Input Type	Configuration	Data Interface	Voltage - Supply, Digital	Architecture	Voltage - Supply, Analog	Mounting Type	Number of Bits
Analog Devices LTC2335HLX-18#PBF	8	1 M	125 °C	-40 °C	1:1	1	48-LQFP	48-LQFP (7x7)	External Internal	Differential	MUX-S/H-ADC	LVDS - Serial SPI	5 V	SAR	5 V	Surface Mount
Analog Devices LTC2335HLX-16#PBF	8	1 M	125 °C	-40 °C	1:1	1	48-LQFP	48-LQFP (7x7)	External Internal	Differential	MUX-S/H-ADC	LVDS - Serial SPI	5 V	SAR	5 V 15 V	Surface Mount	16
Analog Devices LTC2335ILX-18#PBF	8	1 M	85 °C	-40 °C	1:1	1	48-LQFP	48-LQFP (7x7)	External Internal	Differential	MUX-S/H-ADC	LVDS - Serial SPI	5 V	SAR	5 V	Surface Mount
Analog Devices LTC2335CLX-18#PBF	8	1 M	70 °C	0 °C	1:1	1	48-LQFP	48-LQFP (7x7)	External Internal	Differential	MUX-S/H-ADC	LVDS - Serial SPI	5 V	SAR	5 V	Surface Mount

Catalog

18-Bit, 1Msps 8-Channel Differential ±10.24V Input SoftSpan ADC with Wide Input Common Mode Range

Key Features

• 1Msps Throughput

• ±1LSB INL (Maximum)

• Guaranteed 16-Bit, No Missing Codes

• Differential, Wide Common Mode Range Inputs

• 8-Channel Multiplexer with SoftSpan Input Ranges:±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V

• ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V

• ±12.5V, 0V to 12.5V, ±6.25V, 0V to 6.25V

• 94.4dB Single-Conversion SNR (Typical)

• −109dB THD (Typical) at fIN= 2kHz

• 118dB CMRR, 125dB Active Crosstalk (Typical)

• Rail-to-Rail Input Overdrive Tolerance

• Programmable Sequencer with No-Latency Control

• Guaranteed Operation to 125°C

• Integrated Reference and Buffer (4.096V)

• SPI CMOS (1.8V to 5V) and LVDS Serial I/O

• No Pipeline Delay, No Cycle Latency

• 180mW Power Dissipation (Typical)

• 48-Lead (7mm × 7mm) LQFP Package

Description

The LTC2335-18 is an 18-bit, low noise 8-channel multiplexed successive approximation register (SAR) ADC with differential, wide common mode range inputs. Operating from a 5V low voltage supply, flexible high voltage supplies, and using the internal reference and buffer, this SoftSpan™ADC can be configured on a conversion-by-conversion basis to accept ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V signals on any channel. Alternately, the ADC may be programmed to cycle through a sequence of channels and ranges without further user intervention.The wide input common mode range and 118dB CMRR of the LTC2335-18 analog inputs allow the ADC to directly digitize a variety of signals, simplifying signal chain design. This input signal flexibility, combined with ±3LSB INL, no missing codes at 18 bits, and 96.7dB SNR, makes the LTC2335-18 an ideal choice for many high voltage applications requiring wide dynamic range.The LTC2335-18 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.ApplicationsProgrammable Logic ControllersIndustrial Process ControlPower Line MonitoringTest and Measurement