LTC1415 Datasheet | Linear Technology

LTC1415 12-Bit, 1.25Msps, 55m W Sampling A/D Converter Features s s s s s s s s s s DESCRIPTIO 1.25Msps Sample Rate Single 5V Supply Power Dissipation: 55m W Nap and Sleep Power Shutdown Modes ± 0.35LSB INL and ± 0.25LSB DNL 72d B S/(N + D) and 80d B THD at 100k Hz External or Internal Reference Operation True Differential Inputs Reject mon Mode Noise Input Range: 4.096V (1m V/LSB) 28-Pin SSOP and SO Packages The LTC ®1415 is a 700ns, 1.25Msps, 12-bit sampling A/D converter that draws only 55m W from a single 5V supply. This easy-to-use device includes a high dynamic range sample-and-hold, precision reference and a trimmed internal clock. Two power shutdown modes provide flexibility for low power systems. The LTC1415’s full-scale input range is 4.096V. Low linearity errors ± 0.35LSB INL, ± 0.25LSB DNL make it ideal for imaging systems. Outstanding AC performance includes 72d B S/(N + D) and 80d B THD with an input frequency of 100k Hz. The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 18MHz bandwidth. The 60d B mon mode rejection allows users to eliminate ground loops and mon mode noise by measuring signals differentially from the source. The ADC has a µP patible, 12-bit parallel output port. There is no pipeline delay in the conversion results. A separate convert start input and data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors. A separate output logic supply pin allows direct connection to 3V ponents. APPLICATI s s s s s High Speed Data Acquisition Imaging Systems Digital Signal Processing Multiplexed Data Acquisition Systems Telemunications , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATI LTC1415 DIFFERENTIAL 1 +AIN ANALOG INPUT (0V TO 4.096V) 2 - AIN 2.50V 3 V VREF OUTPUT 4 REF REFP 5 AGND 10µF 6 D11(MSB) 7 D10 8 D9 9 D8 10 D7 11 12-BIT D6 PARALLEL 12 D5 BUS 13 D4 14 DGND 1.25MHz, 12-Bit Sampling A/D Converter 5V...