DEMO MANUAL DC1082A LTC1407A, LTC1403A, LTC1407A-1, LTC1403A-1, LTC2356-14, LTC2355-14, 14-Bit, 3.5Msps/3Msps/2.8Msps SAR ADCs Description Demonstration circuit 1082A features the LTC 1407 cation. DC1082A demonstrates the AC performance of family of SAR ADCs. This quick start guide will focus the LTC1407 family in conjunction with the DC890 data on DC1082A-A which uses the LTC1407A-1, a bipolar, collection board and PScope software. Alternatively, 2-channel, 14-bit, simultaneous sampling ADC. Total by connecting DC1082A into a customer application the throughput is 3Msps 1.5Msps per channel, with a typical performance of the LTC1407 family member can be evalu- channel-to-channel aperture skew of 200ps. Other family ated directly in that circuit. members have 12 bits (LTC1403, LTC1407, LTC2355-12 Design files for this circuit board are available at and LTC2356-12) or one channel (LTC1403, LTC1403A, DEMO MANUAL DC1082A Quick Ats Dp To DC890 Figure 1. DC1082A Connection Diagram n Connect DC1082A to a DC890 USB high speed data 3.3V sine wave or square wave to connector J4. P-P collection board, using connector J3. Note that J4 has a 50 termination resistor to ground. n Connect DC890 to a host PC with a standard USB A/B n cable. Run the PScope software (Pscope.exe version K46, or later) supplied with the DC890, or download it from n Apply 5V to 7V DC to the VIN and GND terminals. www.linear.com/software. n Apply a low jitter signal source to J1 (CH0) and J2 Complete software documentation is available from the (CH1), if applicable. Both J1 and J2, if included, are Help menu. Updates can be downloaded from the Tools terminated with 50 to ground. menu. Check for updates periodically, as new features n As a clock source, apply a low jitter 51MHz (50.5MHz may be added. for LTC1403, 63MHz for LTC2355 and LTC2356) DC1082af 2 ure roce rt