ADS7888 Series

2.35V-5.25V, 8 Bit, 1.25MSPS, Serial ADC

Catalog

2.35V-5.25V, 8 Bit, 1.25MSPS, Serial ADC

Part	Mounting Type	Architecture	Sampling Rate (Per Second)	Configuration	Input Type	Number of Inputs	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Ratio - S/H:ADC	Supplier Device Package	Package / Case	Number of A/D Converters	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Number of Bits	Reference Type	Data Interface	Input Range [Min]	Input Range [Max]	Supplied Contents	Utilized IC / Part	Power (Typ) @ Conditions
Texas Instruments ADS7888SDCKR	Surface Mount	SAR	1.25 M	S/H-ADC	Single Ended	1	2.35 V	5.25 V	1:1	SC-70-6	6-TSSOP SC-88 SOT-363	1	125 °C	-40 °C	2.35 V	5.25 V	8	Supply	SPI
Texas Instruments ADS7888SDBVR	Surface Mount	SAR	1.25 M	S/H-ADC	Single Ended	1	2.35 V	5.25 V	1:1	SOT-23-6	SOT-23-6	1	125 °C	-40 °C	2.35 V	5.25 V	8	Supply	SPI
Texas Instruments ADS7888EVM			1.25 M									1					8		Serial	0	5.25 V	Board(s)	ADS7888	3.8 mW 8 mW

Catalog

2.35V-5.25V, 8 Bit, 1.25MSPS, Serial ADC

Key Features

• 1.25-MHz Sample Rate Serial Device10-Bit Resolution (ADS7887)8-Bit Resolution (ADS7888)Zero Latency25-MHz Serial InterfaceSupply Range: 2.35 V to 5.25 VTypical Power Dissipation at 1.25 MSPS:3.8 mW at 3-V VDD8 mw at 5-V VDD±0.35 LSB INL, DNL (ADS7887)±0.15 LSB INL, ±0.1 LSB DNL (ADS7888)61 dB SINAD, –84 dB THD (ADS7887)49.5 dB SINAD, –67.5 dB THD (ADS7888)Unipolar Input Range: 0 V to VDDPower-Down Current: 1 µAWide Input Bandwidth: 15 MHz at 3 dB6-Pin SOT23 and SC70 PackagesAll trademarks are the property of their respective owners.1.25-MHz Sample Rate Serial Device10-Bit Resolution (ADS7887)8-Bit Resolution (ADS7888)Zero Latency25-MHz Serial InterfaceSupply Range: 2.35 V to 5.25 VTypical Power Dissipation at 1.25 MSPS:3.8 mW at 3-V VDD8 mw at 5-V VDD±0.35 LSB INL, DNL (ADS7887)±0.15 LSB INL, ±0.1 LSB DNL (ADS7888)61 dB SINAD, –84 dB THD (ADS7887)49.5 dB SINAD, –67.5 dB THD (ADS7888)Unipolar Input Range: 0 V to VDDPower-Down Current: 1 µAWide Input Bandwidth: 15 MHz at 3 dB6-Pin SOT23 and SC70 PackagesAll trademarks are the property of their respective owners.

Description

The ADS7887 device is a 10-bit, 1.25-MSPS, analog-to-digital converter (ADC), and the ADS7888 device is a 8-bit, 1.25-MSPS ADC. These devices include a capacitor-based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by theCSand SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge ofCS, and SCLK is used for conversion and serial data output. The devices operate from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the devices make them suitable for battery-powered applications. The devices also include a power-saving, power-down feature for when the devices are operated at lower conversion speeds. The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power-up sequencing. The ADS7887 and ADS7888 are available in 6-pin SOT-23 and SC70 packages and are specified for operation from –40°C to 125°C. The ADS7887 device is a 10-bit, 1.25-MSPS, analog-to-digital converter (ADC), and the ADS7888 device is a 8-bit, 1.25-MSPS ADC. These devices include a capacitor-based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by theCSand SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge ofCS, and SCLK is used for conversion and serial data output. The devices operate from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the devices make them suitable for battery-powered applications. The devices also include a power-saving, power-down feature for when the devices are operated at lower conversion speeds. The high level of the digital input to the device is not limited to device VDD. This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power-up sequencing. The ADS7887 and ADS7888 are available in 6-pin SOT-23 and SC70 packages and are specified for operation from –40°C to 125°C.