SNOU184 November   2021 TLV3801

 

  1.   Trademarks
  2. 1Introduction
  3. 2Features
  4. 3EVM Specifications
  5. 4Recommended Equipment
  6. 5How to Make a TPHL Propagation Delay Measurement With Split Supplies
  7. 6Board Setup
    1. 6.1 Supply Voltage
    2. 6.2 Inputs
    3. 6.3 Outputs
  8. 7Layout Guidelines
  9. 8Schematic
  10. 9Bill of Materials

3 EVM Specifications

  • Supply Range: +2.7 V to +5.25 V (Single Supply Only)
  • Input Common Mode Range: VEE + 1.5 V to VCC + 0.1 V
  • Differential Input Voltage Range: (-1.5 V to 1.5 V)
Figure 3-1 TLV3801EVM Pin Assignments

Comparing the device pin assignments to the EVM designations, it is clear that the TLV3801 does not have "VEE_In" and "VEE_Out" pins. The "VEE_In" EVM designation corresponds to the VEE pin on the device. This pin establishes the lower limit for the input common mode range. The minimum input to the device is VEE + 1.5 V.

The "VEE_Out" designator for the EVM corresponds to the GND pin on the TLV3801. The difference between the VCC pin and the GND pin is the output supply voltage. The recommended output supply voltage (VCC - GND) range is 2.4 V to 5.25 V.

Figure 3-2 How EVM Designations are Mapped to the TLV3801 Pinout

When using a single supply, VEE_In (VEE pin) and VEE_Out (GND) are shorted to SYS_GND on the EVM. When a split supply configuration is used, then VEE_In is not shorted to SYS_GND and VEE_Out is. The split supply requirements are as follows: VCC - VEE (applies to VEE_In) has a range of 2.7 V to 5.5 V and VCC - GND has a range of 2.4 V to 5.25 V.