TI AFE5401TRGCTQ1

AFE5401-Q1 is an analog front end (AFE) targeting integration-focused applications. The device includes four channels, each consisting of a low-noise amplifier (LNA), a programmable equalizer (EQ), a programmable gain amplifier (PGA), an anti-aliasing filter, followed by a high-speed, 12-bit ADC operating at 25MSPS per channel. Each of the four differential input pairs is amplified by an LNA, followed by a PGA with an adjustable gain range of 0dB to 30dB. For each channel, an anti-aliasing low-pass filter (LPF) is integrated between the PGA and ADC. Each LNA, PGA, and anti-aliasing filter output is differential (limited to 2VPP). The anti-aliasing filter drives an on-chip, 12-bit, 25MSPS ADC. The four ADC outputs are multiplexed onto a single 12-bit, parallel, CMOS output bus. The device is offered in a 9mm x 9mm VQFN-64 package and is rated for operation over a temperature range of -40°C to +105°C.

• Meets automotive application standards
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: ambient operating temperature range -40°C to 125°C
    • Device human body model (HBM) ESD classification level 2
    • Device charged device model (CDM) ESD classification level C4B
• Integrated analog front end includes:
  • Four-channel LNA, equalizer, PGA, anti-aliasing filter, and ADC
• Input-referred noise at 30dB PGA gain:
  • 2.9nV/√Hz for 15dB LNA gain
  • 2.0nV/√Hz for 18dB LNA gain in HIGH_POW_LNA mode
• Simultaneous sampling across channels
• Programmable LNA gain: 12dB, 15dB, 16.5dB, and 18dB
• Programmable equalizer mode
• Built-in diagnostic mode
• Temperature sensor
• Programmable Gain Amplifier (PGA):
  • 0dB to 30dB (3dB step size)
• Programmable 3rd-order anti-aliasing filter:
  • 7MHz, 8MHz, 10.5MHz, and 12MHz
• ADC:
  • Four channels, 12-bit per channel, 25 MSPS
  • No external decoupling required for reference
• Parallel CMOS output
• Total core power of 64mW per channel at 25MSPS per channel
• Supply voltage: 1.8V and 3.3V
• Package: 9mm x 9mm VQFN-64

• Automotive radar data acquisition
• SONAR