ADS8883 Series

18-Bit, 680-kSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain

Catalog

18-Bit, 680-kSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain

Part	Data Interface	Supplier Device Package	Mounting Type	Input Type	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Sampling Rate (Per Second)	Number of A/D Converters	Number of Inputs	Architecture	Package / Case	Configuration	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Ratio - S/H:ADC	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]
Texas Instruments ADS8883IDRCT	SPI	10-VSON (3x3)	Surface Mount	Differential	85 °C	-40 °C	External	680k	1	1	SAR	10-VFDFN Exposed Pad	S/H-ADC	1.65 V	3.6 V	1:1	2.7 V	3.6 V

Catalog

18-Bit, 680-kSPS, 1-Ch SAR ADC with True-Differential Input, SPI Interface and Daisy-Chain

Key Features

• Sample Rate: 680 kHzNo Latency OutputUnipolar, True-Differential Input Range:–VREFto +VREFWide Common-Mode Voltage Range:0 V to VREFwith 90-dB CMRR (min)SPI™-Compatible Serial Interface withDaisy-Chain OptionExcellent AC and DC Performance:SNR: 100 dB, THD: –115 dBINL: ±1.5 LSB (typ), ±3.0 LSB (max)DNL: +1.5 and –1 LSB (max), 18-Bit NMCWide Operating Range:AVDD: 2.7 V to 3.6 VDVDD: 1.65 V to 3.6 V(Independent of AVDD)REF: 2.5 V to 5 V (Independent of AVDD)Operating Temperature: –40°C to +85°CLow-Power Dissipation:4.2 mW at 680 kSPS0.6 mW at 100 kSPS60 µW at 10 kSPSPower-Down Current (AVDD): 50 nAFull-Scale Step Settling to 18 Bits: 540 nsPackages: MSOP-10 and SON-10Sample Rate: 680 kHzNo Latency OutputUnipolar, True-Differential Input Range:–VREFto +VREFWide Common-Mode Voltage Range:0 V to VREFwith 90-dB CMRR (min)SPI™-Compatible Serial Interface withDaisy-Chain OptionExcellent AC and DC Performance:SNR: 100 dB, THD: –115 dBINL: ±1.5 LSB (typ), ±3.0 LSB (max)DNL: +1.5 and –1 LSB (max), 18-Bit NMCWide Operating Range:AVDD: 2.7 V to 3.6 VDVDD: 1.65 V to 3.6 V(Independent of AVDD)REF: 2.5 V to 5 V (Independent of AVDD)Operating Temperature: –40°C to +85°CLow-Power Dissipation:4.2 mW at 680 kSPS0.6 mW at 100 kSPS60 µW at 10 kSPSPower-Down Current (AVDD): 50 nAFull-Scale Step Settling to 18 Bits: 540 nsPackages: MSOP-10 and SON-10

Description

The ADS8883 is an 18-bit, 680-kSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD). The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy. The device supports unipolar, true-differential analog input signals with a differential input swing of –VREFto +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +VREF(when both inputs are within the operating input range of –0.1 V to VREF+ 0.1 V). Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8883 excellent for lower-speed applications. The ADS8883 is an 18-bit, 680-kSPS, true-differential input, analog-to-digital converter (ADC). The device operates with a 2.5-V to 5-V external reference, offering a wide selection of signal ranges without additional input signal scaling. The reference voltage setting is independent of, and can exceed, the analog supply voltage (AVDD). The device offers an SPI-compatible serial interface that also supports daisy-chain operation for cascading multiple devices. An optional busy-indicator bit makes synchronizing with the digital host easy. The device supports unipolar, true-differential analog input signals with a differential input swing of –VREFto +VREF. This true-differential analog input structure allows for a common-mode voltage of any value in the range of 0 V to +VREF(when both inputs are within the operating input range of –0.1 V to VREF+ 0.1 V). Device operation is optimized for very low-power operation. Power consumption directly scales with speed. This feature makes the ADS8883 excellent for lower-speed applications.