ADS7881 Series

2.7V-5.25V Digital, 5V Analog, 12 Bit, 4MSPS, Parallel ADC with Ref

Catalog

2.7V-5.25V Digital, 5V Analog, 12 Bit, 4MSPS, Parallel ADC with Ref

Part	Number of A/D Converters	Utilized IC / Part	Data Interface	Number of Bits	Sampling Rate (Per Second)	Supplied Contents	Input Range [Min]	Input Range [Max]	Supplier Device Package	Reference Type	Package / Case	Input Type	Architecture	Ratio - S/H:ADC	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog	Mounting Type	Configuration	Number of Inputs
Texas Instruments ADS7881EVM	1	ADS7881	Parallel	12 bits	4M	Board(s)	0 V	2.5 V
Texas Instruments ADS7881IPFBT	1		Parallel	12 bits	4M				48-TQFP (7x7)	External Internal	48-TQFP	Pseudo-Differential	SAR	1:1	5.25 V	2.7 V	85 °C	-40 °C	5 V	Surface Mount	S/H-ADC	1
Texas Instruments ADS7881IPFBR	1		Parallel	12 bits	4M				48-TQFP (7x7)	External Internal	48-TQFP	Pseudo-Differential	SAR	1:1	5.25 V	2.7 V	85 °C	-40 °C	5 V	Surface Mount	S/H-ADC	1

Catalog

2.7V-5.25V Digital, 5V Analog, 12 Bit, 4MSPS, Parallel ADC with Ref

Key Features

• 4 MHz Sample Rate, 12-Bit ResolutionZero LatencyUnipolar, Pseudo Differential Input, Range:0 V to 2.5 VHigh Speed Parallel Interface71 dB SNR and –88.5 dB THD at 1 MHz I/PPower Dissipation 95 mW at 4 MSPSNap Mode (10 mW Power Dissipation)Power Down (10 µW)Internal ReferenceInternal Reference Buffer48-Pin TQFP PackageAPPLICATIONSOptical Networking (DWDM, MEMS Based Switching)Spectrum AnalyzersHigh Speed Data Acquisition SystemsHigh Speed Close-Loop SystemsTelecommunicationUltra-Sound Detection4 MHz Sample Rate, 12-Bit ResolutionZero LatencyUnipolar, Pseudo Differential Input, Range:0 V to 2.5 VHigh Speed Parallel Interface71 dB SNR and –88.5 dB THD at 1 MHz I/PPower Dissipation 95 mW at 4 MSPSNap Mode (10 mW Power Dissipation)Power Down (10 µW)Internal ReferenceInternal Reference Buffer48-Pin TQFP PackageAPPLICATIONSOptical Networking (DWDM, MEMS Based Switching)Spectrum AnalyzersHigh Speed Data Acquisition SystemsHigh Speed Close-Loop SystemsTelecommunicationUltra-Sound Detection

Description

The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage. The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package. The ADS7881 is a 12-bit 4-MSPS A-to-D converter with 2.5-V internal reference. The device includes a capacitor based SAR A/D converter with inherent sample and hold. The device offers a 12-bit parallel interface with an additional byte mode that provides easy interface with 8-bit processors. The device has a pseudo-differential input stage. The –IN swing of ±200 mV is useful to compensate for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With nap mode enabled, the device operates at lower power when used at lower conversion rates. The device is available in a 48-pin TQFP package.