TLV2548-EP Series

Enhanced Product 2-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch

Catalog

Enhanced Product 2-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch

Part	Package / Case	Package / Case [y]	Package / Case [y]	Number of Bits	Configuration	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Ratio - S/H:ADC	Mounting Type	Number of Inputs	Data Interface	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Input Type	Number of A/D Converters	Reference Type	Sampling Rate (Per Second)	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Architecture	Package / Case [x]
Texas Instruments TLV2548QDWR	20-SOIC	0.295 in	7.5 mm	12 bits	MUX-S/H-ADC	3 V	5.5 V	1:1	Surface Mount	8	SPI	-55 °C	125 °C	20-SOIC	Single Ended	1	External Internal	200k	3 V	5.5 V	SAR
Texas Instruments TLV2548CPWRG4	20-TSSOP	4.4 mm		12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	0 °C	70 °C	20-TSSOP	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR	0.173 in
Texas Instruments TLV2548QDW	20-SOIC	0.295 in	7.5 mm	12 bits	MUX-S/H-ADC	3 V	5.5 V	1:1	Surface Mount	8	SPI	-55 °C	125 °C	20-SOIC	Single Ended	1	External Internal	200k	3 V	5.5 V	SAR
Texas Instruments TLV2548IDWR	20-SOIC	0.295 in	7.5 mm	12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	-40 °C	85 °C	20-SOIC	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR
Texas Instruments TLV2548IPW	20-TSSOP	4.4 mm		12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	-40 °C	85 °C	20-TSSOP	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR	0.173 in
Texas Instruments TLV2548CPWG4	20-TSSOP	4.4 mm		12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	0 °C	70 °C	20-TSSOP	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR	0.173 in
Texas Instruments TLV2548IPWR	20-TSSOP	4.4 mm		12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	-40 °C	85 °C	20-TSSOP	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR	0.173 in
Texas Instruments TLV2548QDWG4	20-SOIC	0.295 in	7.5 mm	12 bits	MUX-S/H-ADC	3 V	5.5 V	1:1	Surface Mount	8	SPI	-55 °C	125 °C	20-SOIC	Single Ended	1	External Internal	200k	3 V	5.5 V	SAR
Texas Instruments TLV2548CPWR	20-TSSOP	4.4 mm		12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	0 °C	70 °C	20-TSSOP	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR	0.173 in
Texas Instruments TLV2548CDWR	20-SOIC	0.295 in	7.5 mm	12 bits	MUX-S/H-ADC	2.7 V	5.5 V	1:1	Surface Mount	8	DSP SPI	0 °C	70 °C	20-SOIC	Single Ended	1	External Internal	200k	2.7 V	5.5 V	SAR

Catalog

Enhanced Product 2-Bit 200 kSPS ADC Ser. Out, Auto Pwrdn (S/W and H/W), Low Power W/8 x FIFO W/8 Ch

Key Features

• Maximum Throughput 200-KSPSBuilt-In Reference, Conversion Clock and 8x FIFODifferential/Integral Nonlinearity Error: ±1.2 LSBSignal-to-Noise and Distortion Ratio: 70 dB, fi= 12 kHzSpurious Free Dynamic Range: 75 dB, fi= 12 kHzSPI (CPOL = 0, CPHA = 0)/DSP-Compatible Serial InterfacesWith SCLK up to 20 MHzSingle Wide Range Supply 3.0 Vdc to 5.5 VdcAnalog Input Range 0 V to Supply Voltage With 500-kHz BWHardware Controlled and Programmable Sampling PeriodLow Operating Current (1.0 mA at 3.3 V, 2.0 mA at 5.5 V With External Ref,1.7-mA at 3.3V, 2.4-mA at 5.5-V With Internal Ref)Power Down: Software/HardwarePower-Down Mode (1 µA Max, Ext Ref),Autopower-Down Mode (1 µA, Ext Ref)Programmable Auto-Channel SweepSUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C) Temperature Range(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges availableMaximum Throughput 200-KSPSBuilt-In Reference, Conversion Clock and 8x FIFODifferential/Integral Nonlinearity Error: ±1.2 LSBSignal-to-Noise and Distortion Ratio: 70 dB, fi= 12 kHzSpurious Free Dynamic Range: 75 dB, fi= 12 kHzSPI (CPOL = 0, CPHA = 0)/DSP-Compatible Serial InterfacesWith SCLK up to 20 MHzSingle Wide Range Supply 3.0 Vdc to 5.5 VdcAnalog Input Range 0 V to Supply Voltage With 500-kHz BWHardware Controlled and Programmable Sampling PeriodLow Operating Current (1.0 mA at 3.3 V, 2.0 mA at 5.5 V With External Ref,1.7-mA at 3.3V, 2.4-mA at 5.5-V With Internal Ref)Power Down: Software/HardwarePower-Down Mode (1 µA Max, Ext Ref),Autopower-Down Mode (1 µA, Ext Ref)Programmable Auto-Channel SweepSUPPORTS DEFENSE, AEROSPACE, AND MEDICAL APPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C) Temperature Range(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges available

Description

The TLV2548 and TLV2544 are a family of high performance, 12-bit low power, 3.86 µs, CMOS analog-to-digital converters (ADC) which operate from a single 2.7-V to 5.5-V power supply. These devices have three digital inputs and a 3-state output [chip select (CS)\, serial input-output clock (SCLK), serial data input (SDI), and serial data output (SDO)] that provide a direct 4-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a TI DSP, a frame sync (FS) signal is used to indicate the start of a serial data frame. In addition to a high-speed A/D converter and versatile control capability, these devices have an on-chip analog multiplexer that can select any analog inputs or one of three internal self-test voltages. The sample-and-hold function is automatically started after the fourth SCLK edge (normal sampling) or can be controlled by a special pin, CSTART\, to extend the sampling period (extended sampling). The normal sampling period can also be programmed as short (12 SCLKs) or as long (24 SCLKs) to accommodate faster SCLK operation popular among high-performance signal processors. The TLV2548 and TLV2544 are designed to operate with very low power consumption. The power-saving feature is further enhanced with software/hardware/autopower-down modes and programmable conversion speeds. The conversion clock (OSC) and reference are built-in. The converter can use the external SCLK as the source of the conversion clock to achieve higher (up to 2.8 µs when a 20 MHz SCLK is used) conversion speed. Two different internal reference voltages are available. An optional external reference can also be used to achieve maximum flexibility. The TLV2544C and the TLV2548C are characterized for operation from 0°C to 70°C. The TLV2544I and the TLV2548I are characterized for operation from –40°C to 85°C. The TLV2548 and TLV2544 are a family of high performance, 12-bit low power, 3.86 µs, CMOS analog-to-digital converters (ADC) which operate from a single 2.7-V to 5.5-V power supply. These devices have three digital inputs and a 3-state output [chip select (CS)\, serial input-output clock (SCLK), serial data input (SDI), and serial data output (SDO)] that provide a direct 4-wire interface to the serial port of most popular host microprocessors (SPI interface). When interfaced with a TI DSP, a frame sync (FS) signal is used to indicate the start of a serial data frame. In addition to a high-speed A/D converter and versatile control capability, these devices have an on-chip analog multiplexer that can select any analog inputs or one of three internal self-test voltages. The sample-and-hold function is automatically started after the fourth SCLK edge (normal sampling) or can be controlled by a special pin, CSTART\, to extend the sampling period (extended sampling). The normal sampling period can also be programmed as short (12 SCLKs) or as long (24 SCLKs) to accommodate faster SCLK operation popular among high-performance signal processors. The TLV2548 and TLV2544 are designed to operate with very low power consumption. The power-saving feature is further enhanced with software/hardware/autopower-down modes and programmable conversion speeds. The conversion clock (OSC) and reference are built-in. The converter can use the external SCLK as the source of the conversion clock to achieve higher (up to 2.8 µs when a 20 MHz SCLK is used) conversion speed. Two different internal reference voltages are available. An optional external reference can also be used to achieve maximum flexibility. The TLV2544C and the TLV2548C are characterized for operation from 0°C to 70°C. The TLV2544I and the TLV2548I are characterized for operation from –40°C to 85°C.