ANALOG DEVICES LTC2326HMS-18#PBF Analogue to Digital Converter, 18 bit, 250 kSPS, Pseudo Differential, SPI, Single, 4.75 V

LTC2326HMS-18#PBF is a low-noise, high-speed 18bit successive approximation register (SAR) ADC with pseudo-differential inputs. Operating from a single 5V supply, the LTC2326-18 has a ±10.24V true bipolar input range, making it ideal for high-voltage applications that require a wide dynamic range. The LTC2326-18 achieves ±5LSB INL maximum, with no missing codes at 18 bits with 95dB SNR. The LTC2326-18 has an onboard single-shot capable reference buffer and low drift (20ppm/°C max) 2.048V temperature compensated reference. The LTC2326-18 also has a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 250ksps throughput with no cycle latency makes the LTC2326-18 ideally suited for a wide variety of high-speed applications. It is used in applications such as programmable logic controllers, industrial process control, high speed data acquisition, portable or compact instrumentation, ATE.

• Guaranteed 18bit no missing codes, pseudo-differential inputs
• Onboard single-shot capable reference buffer, no pipeline delay, no cycle latency
• 1.8V to 5V I/O voltages, SPI-compatible serial I/O with daisy-chain mode
• Internal conversion clock, guaranteed operation to 125°C, single 5V supply
• Integral linearity error is 5LSB maximum, transition noise 1.6LSBRMS typ at (TA = 25°C)
• Signal-to-noise ratio is 95dB typical at (±10.24V range, fIN = 2KHz, REFIN = 2.048V)
• �3dB input linear bandwidth is 7MHz typical at (TA = 25°C)
• Total harmonic distortion is -111dB typical at (±10.24V range, fIN = 2KHz, REFIN = 2.048V)
• Power dissipation is 28W typical at (250ksps sample rate (IN+ = IN� = 0V), TA = 25°C)
• Operating temperature range from -40°C to 125°C, 16-lead plastic MSOP package

Notes

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