Микросхемы и комплектующие LTC2333ILX-18#PBF

АЦП , 18 бит, 800 Квыборок/с, Дифференциальный, SPI, Однополярный, 4.5 В

The LTC2333ILX-18#PBF from Linear Technology is a buffered 8-channel, 18bit, 800Ksps differential ±10.24V ADC with 30VP-P common mode range in 48 pin LQFP package. This ADC with buffered differential, wide common mode range picoamp inputs. Operating from a 5V low voltage supply, flexible high voltage supplies and using internal reference and buffer, this SoftSpan™ ADC can be configured on a conversion by conversion basis to accept ±10.24V, 0V to 10.24V, ±5.12V or 0V to 5.12V signals on any channel. Alternately, it can be programmed to cycle through a sequence of channels and ranges without further user intervention. The integrated picoamp-input analogue buffers and 128dB CMRR of LTC2333-18 allow the ADC to directly digitize a variety of signals using minimal board space and power. This input signal flexibility, combined with ±3LSB INL, no missing codes at 18bit and 96.4dB SNR, makes the LTC2333-18 an ideal choice for many high voltage applications requiring wide dynamic range.

• Eight buffered multiplexed channels, 800Ksps throughput
• 500pA
• 12nA maximum input leakage at 85°C
• 125°C, 268mW power dissipation (typical)
• SPI CMOS (1.8V to 5V) and LVDS serial I
• O, 3psRMS aperture jitter, 420ns transient response
• Integrated reference and buffer (4.096V), low noise multiplexed SAR ADC
• 6MHz -3dB input bandwidth, 1ns aperture delay, 150ps aperture delay matching
• 128dB CMRR, -125dB active crosstalk (typical), -110dB THD (typical) at fIN = 2KHz
• 420ns step response (full scale, 0.005% settling), 7.5V to 38V supply voltage, 7.2mA supply current

• ±0.2LSB differential linearity error, ±80µV zero scale error, ±0.025%FS full scale error
• Rail to rail input overdrive tolerance, programmable sequencer with no-latency control
• Operating temperature range from -40°C to 85°C

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