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ADC3908D125
  • ADC3908D125
  • ADC3908D125
  • ADC3908D125

ADC3908D125

ACTIVE

8-bit, two-channel, 125-MSPS ADC single clock cycle latency single or differential input pin control

Texas Instruments ADC3908D125 Product Info

1 April 2026 2

Parameters

Sample rate (max) (Msps)

125

Resolution (Bits)

8

Number of input channels

2

Interface type

Parallel CMOS, Serial CMOS

Analog input BW (MHz)

150

Features

Differential Inputs, Input buffer, Low power, Power Down

Rating

Catalog

Peak-to-peak input voltage range (V)

1.9

Power consumption (typ) (mW)

90

Architecture

SAR

SNR (dB)

49.8

ENOB (Bits)

8

SFDR (dB)

65

Operating temperature range (°C)

-40 to 105

Input buffer

Yes

Package

VQFN (RSM)-32-16 mm² 4 x 4

Features

  • Sampling rate up to 125MSPS
  • Latency: 1 clock cycle
  • Low power (2 channel):
    • 90mW at 125MSPS
    • 56mW at 25MSPS
    • 3mW in PD mode
  • Small footprint: 32-VQFN (4mm x 4mm)
  • Single or dual channel ADC
  • Internal reference
  • No missing codes, ±0.25 LSB INL
  • Buffered, differential or single ended inputs
  • Input bandwidth: 150MHz (3dB)
  • Single 1.8V supply
    • Optional 3.3VIO capability
  • Industrial temperature range: -40°C to 105°C
  • Parallel (SDR, DDR) CMOS interface
  • Spectral performance (FSCLK = 125MSPS, fIN = 5 MHz):
    • SNR: 49.8dBFS
    • SFDR: 60dBFS
  • Sampling rate up to 125MSPS
  • Latency: 1 clock cycle
  • Low power (2 channel):
    • 90mW at 125MSPS
    • 56mW at 25MSPS
    • 3mW in PD mode
  • Small footprint: 32-VQFN (4mm x 4mm)
  • Single or dual channel ADC
  • Internal reference
  • No missing codes, ±0.25 LSB INL
  • Buffered, differential or single ended inputs
  • Input bandwidth: 150MHz (3dB)
  • Single 1.8V supply
    • Optional 3.3VIO capability
  • Industrial temperature range: -40°C to 105°C
  • Parallel (SDR, DDR) CMOS interface
  • Spectral performance (FSCLK = 125MSPS, fIN = 5 MHz):
    • SNR: 49.8dBFS
    • SFDR: 60dBFS

Description

The ADC3908Dx and ADC3908Sx are a family of ultra-low power 8-bit 125MSPS high-speed dual and single channel analog-to-digital converters. High-speed control loops benefit from the short latency of only 1 clock cycle. The ADC consumes only 90mW at 125MSPS with a power consumption that scales with lower sampling rates.

The ADC3908Dx and ADC3908Sx uses parallel DDR or SDR CMOS interface to output the data, and can be driven at +1.8V or +3.3V to accommodate various receiver requirements. The analog input and output interface can be easily configured via pin control (Interface Configuration Table). The device is a pin-to-pin compatible family of ADCs with 8 and 10-bit resolution and different speed grades. The device is available in a 32-pin VQFN package, and supports industrial temperature range from -40 to +105°C.

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