ADS1198 Series

Low-Noise, 8 Channel, 16 Bit Analog Front End for ECG/EEG Measurements

Catalog

Low-Noise, 8 Channel, 16 Bit Analog Front End for ECG/EEG Measurements

Part	Package / Case	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Number of Bits	Supplier Device Package	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Power (Watts)	Number of Channels	Mounting Type	Secondary Attributes	Function	Supplied Contents	Utilized IC / Part	Contents	Type
Texas Instruments ADS1198CPAG	64-TQFP	2.7 V	5.25 V	16	64-TQFP (10x10)	1.65 V	3.6 V	8.2 mW	8	Surface Mount
Texas Instruments ADS1198ECGFE-PDK											SPI Interface(s)	Analog Front End (AFE) for ECG EKG	Board(s)	ADS1198	Board(s)	Interface
Texas Instruments ADS1198CZXGR	64-LFBGA	2.7 V	5.25 V	16	64-NFBGA (8x8)	1.65 V	3.6 V	8.2 mW	8	Surface Mount
Texas Instruments ADS1198CZXGT	64-LFBGA	2.7 V	5.25 V	16	64-NFBGA (8x8)	1.65 V	3.6 V	8.2 mW	8	Surface Mount

Catalog

Low-Noise, 8 Channel, 16 Bit Analog Front End for ECG/EEG Measurements

Key Features

• Eight Low-Noise PGAs andEight High-Resolution ADCs (ADS1198)Low Power: 0.55mW/channelInput-Referred Noise:12µVPP(150Hz BW, G = 6)Input Bias Current: 200pAData Rate: 125SPS to 8kSPSCMRR: –105dBProgrammable Gain: 1, 2, 3, 4, 6, 8, or 12Supports AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 StandardsSupplies: Unipolar or BipolarAnalog: 2.7V to 5.25VDigital: 1.65V to 3.6VBuilt-In Right Leg Drive Amplifier, Lead-Off Detection, WCT, Test SignalsPace Detection Channel SelectBuilt-In Oscillator and ReferenceFlexible Power-Down, Standby ModeSPI™-Compatible Serial InterfaceOperating Temperature Range:0°C to +70°CEight Low-Noise PGAs andEight High-Resolution ADCs (ADS1198)Low Power: 0.55mW/channelInput-Referred Noise:12µVPP(150Hz BW, G = 6)Input Bias Current: 200pAData Rate: 125SPS to 8kSPSCMRR: –105dBProgrammable Gain: 1, 2, 3, 4, 6, 8, or 12Supports AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 StandardsSupplies: Unipolar or BipolarAnalog: 2.7V to 5.25VDigital: 1.65V to 3.6VBuilt-In Right Leg Drive Amplifier, Lead-Off Detection, WCT, Test SignalsPace Detection Channel SelectBuilt-In Oscillator and ReferenceFlexible Power-Down, Standby ModeSPI™-Compatible Serial InterfaceOperating Temperature Range:0°C to +70°C

Description

The ADS1194/6/8 are a family of multichannel, simultaneous sampling, 16-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. With its high levels of integration and exceptional performance, the ADS1194/6/8 family enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost. The ADS1194/6/8 have a flexible input multiplexer per channel that can be independently connected to the internally-generated signals for test, temperature, and lead-off detection. Additionally, any configuration of input channels can be selected for derivation of the right leg drive (RLD) output signal. The ADS1194/6/8 operate at data rates as high as 8kSPS, thereby allowing the implementation of software pace detection. Lead-off detection can be implemented internal to the device, either with a pull-up/pull-down resistor or an excitation current sink/source. Three integrated amplifiers generate the Wilson Center Terminal (WCT) and the Goldberger terminals (GCT) required for a standard 12-lead medical electrocardiogram (ECG). Multiple ADS1194/6/8 devices can be cascaded in high channel count systems in a daisy-chain configuration. Package options include a tiny 8mm × 8mm, 64-ball BGA and a TQFP-64. Both packages are specified over the temperature range of 0°C to +70°C. The ADS1194/6/8 are a family of multichannel, simultaneous sampling, 16-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with a built-in programmable gain amplifier (PGA), internal reference, and an onboard oscillator. With its high levels of integration and exceptional performance, the ADS1194/6/8 family enables the creation of scalable medical instrumentation systems at significantly reduced size, power, and overall cost. The ADS1194/6/8 have a flexible input multiplexer per channel that can be independently connected to the internally-generated signals for test, temperature, and lead-off detection. Additionally, any configuration of input channels can be selected for derivation of the right leg drive (RLD) output signal. The ADS1194/6/8 operate at data rates as high as 8kSPS, thereby allowing the implementation of software pace detection. Lead-off detection can be implemented internal to the device, either with a pull-up/pull-down resistor or an excitation current sink/source. Three integrated amplifiers generate the Wilson Center Terminal (WCT) and the Goldberger terminals (GCT) required for a standard 12-lead medical electrocardiogram (ECG). Multiple ADS1194/6/8 devices can be cascaded in high channel count systems in a daisy-chain configuration. Package options include a tiny 8mm × 8mm, 64-ball BGA and a TQFP-64. Both packages are specified over the temperature range of 0°C to +70°C.