ADI AD4630-16BBCZ-RL

The AD4630-16/AD4632-16 are 2-channel, simultaneous sampling, Easy Drive, 2 MSPS or 500 kSPS successive approximation register (SAR), analog-to-digital converters (ADCs). With a guaranteed maximum ±3 ppm integral nonlinearity (INL) and no missing codes at 16-bits, the AD4630-16/AD4632-16 achieve excellent precision from -40°C to +125°C. A low-drift, internal precision-reference buffer eases voltage-reference sharing with other system circuitry. The AD4630-16/ AD4632-16 offer a typical dynamic range of 97.4 dB when using a 5 V reference. The low noise floor enables signal chains utilizing less gain and lower power. A block averaging filter with programmable decimation ratio is available and can reduce noise for low-bandwidth signals, improving accuracy. The wide differential input and common-mode ranges allow inputs to use the full voltage reference (±V_REF) range without saturating, simplifying signal-conditioning requirements and system calibration. The improved settling of the Easy Drive analog inputs broadens the selection of analog front end (AFE) components compatible with the AD4630-16/AD4632-16. Both single-ended and differential signals are supported. The versatile Flexi-SPI serial-peripheral interface (SPI) eases host processor and ADC integration. A wide data-clocking window, multiple serial-data output (SDO) lanes, and optional dual data rate (DDR) data clocking can reduce the serial clock to 10 MHz while operating at a sample rate of 2 MSPS. Echo clock mode can relax the timing requirements and simplify the use of digital isolators. The ball grid array (BGA) package of the AD4630-16/AD4632-16 integrates all critical power supply and reference bypass capacitors, reducing the footprint and system-component count, and lessening sensitivity to board layout.

• High performance
  • Throughput: 2 MSPS (AD4630-16) or 500 kSPS (AD4632-16) per channel maximum
  • INL: ±3 ppm maximum from -40°C to +125°C
  • SNR: 97.4 dB typical
  • THD: −127 dB typical
  • NSD: −157.4 dBFS/Hz typical
• Low power
  • 15 mW per channel at 2 MSPS
  • 5 mW per channel at 500 kSPS
  • 1.5 mW per channel at 10 kSPS
• Easy Drive features reduce system complexity
  • Low 0.6 μA input current for DC inputs
  • Wide common-mode input range: -(1/128)×V_REF to +(129/128)×V_REF
• Flexible external reference voltage range: 4.096 V to 5 V
• Accurate integrated reference buffer with 2 μF bypass capacitor
• Programmable block averaging filter with up to 2^16 decimation
• Extended sample resolution to 30 bits
• Overrange and synchronization bits
• Flexi-SPI digital interface
  • 1, 2, or 4 SDO lanes per channel allows slower SCK
  • Echo clock mode simplifies use of digital isolator
  • Compatible with 1.2 V to 1.8 V logic
• 7 mm × 7 mm 64-Ball CSP_BGA package with internal supply and reference capacitors to help reduce system footprint

• Automatic test equipment
• Digital control loops
• Medical instrumentation
• Seismology
• Semiconductor manufacturing
• Scientific instrumentation