제품 상세 정보

Resolution (bps) 24 Number of DAC channels 1 Interface type Bitstream Output type Unbuffered Current Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 16 Settling time (µs) 100 Reference type Ext Architecture Current-Steering Rating Catalog Sample/update rate (Msps) 0.256 Power consumption (typ) (mW) 18 Operating temperature range (°C) -40 to 85 Product type Precision DAC
Resolution (bps) 24 Number of DAC channels 1 Interface type Bitstream Output type Unbuffered Current Output voltage range (V) 0 to 5.5 INL (max) (±LSB) 16 Settling time (µs) 100 Reference type Ext Architecture Current-Steering Rating Catalog Sample/update rate (Msps) 0.256 Power consumption (typ) (mW) 18 Operating temperature range (°C) -40 to 85 Product type Precision DAC
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Outstanding Performance:
    • THD: –125dB
    • SNR: 120dB (413Hz BW, Gain = 1/1)
    • Gain Error: 0.1%
  • Pin Operation: No Registers to Program
  • Gain: 1/1 to 1/64
  • SYNC Input for Phase Control
  • Power-Down Mode
  • Low Power: 18mW
  • Analog Supply: +5V or ±2.5V
  • Digital Supply: 1.8V to 3.3V
  • Small 16-Pin TSSOP Package
  • Temperature Range: –40°C to +85°C
  • APPLICATIONS
    • Energy Exploration Equipment
    • Seismic Monitoring Systems

All other trademarks are the property of their respective owners

  • Outstanding Performance:
    • THD: –125dB
    • SNR: 120dB (413Hz BW, Gain = 1/1)
    • Gain Error: 0.1%
  • Pin Operation: No Registers to Program
  • Gain: 1/1 to 1/64
  • SYNC Input for Phase Control
  • Power-Down Mode
  • Low Power: 18mW
  • Analog Supply: +5V or ±2.5V
  • Digital Supply: 1.8V to 3.3V
  • Small 16-Pin TSSOP Package
  • Temperature Range: –40°C to +85°C
  • APPLICATIONS
    • Energy Exploration Equipment
    • Seismic Monitoring Systems

All other trademarks are the property of their respective owners

The DAC1280 is a very low distortion digital-to-analog converter (DAC) suited for performance testing of seismic equipment. The DAC1280 provides a high-accuracy output signal from a bitstream input. The device achieves very high linearity in a small package while dissipating only 18mW. Together with the high-performance ADS1281 and ADS1282 analog-to-digital converters (ADCs), these devices create a test and measurement system that meets the exacting demands of energy exploration and seismic monitoring equipment.

The DAC1280 is designed to match the system components (power supply, clock and reference voltage) of the companion ADCs, the ADS1281 and ADS1282. The input to the DAC1280 is a 1s density modulated bitstream. The DAC1280 output is a differential current intended for use with an active I/V converter. The I/V converter provides a voltage output suitable for performance testing of sensors and ADCs.

Three gain control pins set the output range in 6dB steps from 0dB to –36db (±2.5V to ±0.039V differential). The attenuation ranges match the gains of the ADS1282 for testing at all gains. The DAC uses a reference voltage and bias resistor to set the full-scale output. The resistor can be adjusted to fine-trim the DAC full-scale.

The SYNC pin aligns the input data sampling to the CLK phase. A power-down pin shuts down the device when not in use. The DAC1280 is available in a small, 16-pin TSSOP package and is fully specified for operation over –40°C to +85°C temperature range with a maximum operating temperature of +125°C.

The DAC1280 is a very low distortion digital-to-analog converter (DAC) suited for performance testing of seismic equipment. The DAC1280 provides a high-accuracy output signal from a bitstream input. The device achieves very high linearity in a small package while dissipating only 18mW. Together with the high-performance ADS1281 and ADS1282 analog-to-digital converters (ADCs), these devices create a test and measurement system that meets the exacting demands of energy exploration and seismic monitoring equipment.

The DAC1280 is designed to match the system components (power supply, clock and reference voltage) of the companion ADCs, the ADS1281 and ADS1282. The input to the DAC1280 is a 1s density modulated bitstream. The DAC1280 output is a differential current intended for use with an active I/V converter. The I/V converter provides a voltage output suitable for performance testing of sensors and ADCs.

Three gain control pins set the output range in 6dB steps from 0dB to –36db (±2.5V to ±0.039V differential). The attenuation ranges match the gains of the ADS1282 for testing at all gains. The DAC uses a reference voltage and bias resistor to set the full-scale output. The resistor can be adjusted to fine-trim the DAC full-scale.

The SYNC pin aligns the input data sampling to the CLK phase. A power-down pin shuts down the device when not in use. The DAC1280 is available in a small, 16-pin TSSOP package and is fully specified for operation over –40°C to +85°C temperature range with a maximum operating temperature of +125°C.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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2개 모두 보기
유형 직함 날짜
* Data sheet Low Distortion Digital-to-Analog Converter for Seismic Monitoring datasheet (Rev. A) 2010/09/22
Application note AN-263 Sine Wave Generation Techniques (Rev. C) 2013/04/22

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

시뮬레이션 모델

DAC1280 IBIS Model

SBAM077.ZIP (18 KB) - IBIS Model
계산 툴

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PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

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사용 설명서: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
TSSOP (PW) 16 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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