LTC2157IUP-14#PBF

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IC ADC 14BIT PIPELINED 64QFN

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LTC2157IUP-14#PBF

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Analog Devices

IC ADC 14BIT PIPELINED 64QFN

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC2157IUP-14#PBF

Architecture	Pipelined
Configuration	S/H-ADC
Data Interface	LVDS - Parallel
Features	Simultaneous Sampling
Input Type	Differential
Mounting Type	Surface Mount
Number of A/D Converters	2
Number of Bits	14
Number of Inputs	2
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	64-WFQFN Exposed Pad
Ratio - S/H:ADC	1:1
Reference Type	External, Internal
Sampling Rate (Per Second)	250 M
Supplier Device Package	64-QFN (9x9)
Voltage - Supply, Analog [Max]	1.9 V
Voltage - Supply, Analog [Min]	1.7 V
Voltage - Supply, Digital [Max]	1.9 V
Voltage - Supply, Digital [Min]	1.7 V

LTC2157-14 Series

Dual 14-Bit 250Msps ADCs

Part	Data Interface	Number of Bits	Ratio - S/H:ADC	Features	Operating Temperature [Max]	Operating Temperature [Min]	Configuration	Number of A/D Converters	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Sampling Rate (Per Second)	Architecture	Supplier Device Package	Package / Case	Input Type	Mounting Type	Reference Type	Number of Inputs
Analog Devices LTC2157IUP-14#PBF	LVDS - Parallel	14	1:1	Simultaneous Sampling	85 °C	-40 °C	S/H-ADC	2	1.7 V	1.9 V	1.9 V	1.7 V	250 M	Pipelined	64-QFN (9x9)	64-WFQFN Exposed Pad	Differential	Surface Mount	External Internal	2
Analog Devices LTC2157IUP-12#TRPBF	LVDS - Parallel	12 bits	1:1	Simultaneous Sampling	85 °C	-40 °C	S/H-ADC	2	1.7 V	1.9 V	1.9 V	1.7 V	250 M	Pipelined	64-QFN (9x9)	64-WFQFN Exposed Pad	Differential	Surface Mount	External Internal	2

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 278.99
		10	$ 242.93

Description

General part information

LTC2157-14 Series

The LTC2157-14/LTC2156-14/LTC2155-14 are 2-channel simultaneous sampling 250Msps/210Msps/170Msps 14-bit A/D converters designed for digitizing high frequency, wide dynamic range signals. They are perfect for demanding communications applications with AC performance that includes 70dB SNR and 90dB spurious free dynamic range (SFDR). The 1.25GHz input bandwidth allows the ADC to undersample high frequencies with good performance. The latency is only five clock cycles.DC specs include ±0.85LSB INL (typ), ±0.25LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.82LSBRMS.The digital outputs are double data rate (DDR) LVDS.The ENC+and ENC–inputs can be driven differentially with a sine wave, PECL, LVDS, TTL, or CMOS inputs. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.BitsLTC2157-1212LTC2157-1414ApplicationsCommunicationsCellular BasestationsSoftware Defined RadiosMedical ImagingHigh Definition VideoTesting and Measurement Instruments