LTC1740
LTC1740 is 14-Bit 6Msps Sampling ADC manufactured by Linear Technology.
LTC1740 14-Bit, 6Msps, Sampling ADC
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Features s s s s s s s s s s s s
DESCRIPTIO
6Msps Sample Rate 79d B S/(N + D) and 91d B SFDR at 2.5MHz f IN Single 5V Supply or ± 5V Supplies Integral Nonlinearity Error: < 1LSB Differential Nonlinearity: < 0.5LSB 80MHz Full-Power Bandwidth Sampling ± 2.5V and ± 1.25V Bipolar Input Ranges 2.5V Signal Ground Available Out-of-Range Indicator True Differential Inputs with 75d B CMRR Power Dissipation: 245m W 36-Pin SSOP Package (0.209 Inch Width)
The LTC®1740 is a 6Msps, 14-bit sampling A/D converter that draws only 245m W from either a single 5V or dual ± 5V supplies. This easy-to-use device includes a high dynamic range sample-and-hold and a programmable precision reference. The LTC1740 has a flexible input circuit that allows differential full-scale input ranges of ± 2.5V and ± 1.25V with the internal reference, or any full-scale input range up to ±2.5V with an external reference. The input mon mode voltage is arbitrary, though a 2.5V reference is provided for single supply applications. DC specifications include 1LSB typical INL, 0.5LSB typical DNL and no missing codes over temperature. Outstanding AC performance includes 79d B S/(N␣ +␣ D) and 91d B SFDR at an input frequency of 2.5MHz. The unique differential input sample-and-hold can acquire single-ended or differential input signals up to its 80MHz bandwidth. The 75d B mon mode rejection allows users to eliminate ground loops and mon mode noise by measuring signals differentially from the source. A separate output logic supply allows direct connection to 3V ponents.
U APPLICATIO S s s s s s
Telemunications Multiplexed Data Acquisition Systems High Speed Data Acquisition Spectral Analysis Imaging Systems
, LTC and LT are registered trademarks of Linear Technology Corporation.
BLOCK DIAGRA
5V 1µF
5V 1µF VDD
3V TO 5V 1µF
+
VIN 1000p F
+ AIN
OVDD OF
36 12
- 1µF
2 3
- AIN VCM
S/H
PIPELINED 14-BIT ADC
D13...