Key Sheet AD7193 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA |
| Pages / Page | 6 / 2 — AD7193. Key Sheet. KEY CHARACTERISTICS FUNDAMENTAL SPECIFICATIONS. Table … |
| File Format / Size | PDF / 152 Kb |
| Document Language | English |
AD7193. Key Sheet. KEY CHARACTERISTICS FUNDAMENTAL SPECIFICATIONS. Table 1. Parameter. Min. Typ. Max. Unit
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AD7193 Key Sheet KEY CHARACTERISTICS FUNDAMENTAL SPECIFICATIONS Table 1. Parameter Min Typ Max Unit
ADC Type Σ- Δ ADC Number of Input Channels Four differential or eight pseudo differential input channels Resolution 24 24 Bits Output Data Rate 4.7 4800 SPS Differential ADC Input Range −VREF/gain +VREF/gain V AVDD with Respect to AGND 3 5.25 V AIDD Current With Gain = 1, Buffer Off 0.85 1 mA With Gain = 16 to 128, Buffer On 4.3 5.3 mA DIDD Current (DVDD = 3 V) 0.35 0.4 mA Offset Error ±150/gain µV/gain Offset Error Drift vs. Temperature1 ±150/gain nV/°C/gain Full-Scale Error ±10 µV Gain Drift vs. Temperature ±1 ppm/°C Integral Nonlinearity (INL)2 −10 ±2 +10 ppm of FSR Power Supply Rejection 90 dB Operating Temperature Range −40 +105 °C 1 Gain = 1 to 16; chop disabled. 2 AVDD = 5 V, Gain = 1.
NOISE Sinc4 Chop Disabled Filter Setting Table 2. RMS Noise (nV) vs. Gain and Output Data Rate Filter Word Output Data Settling RMS Noise (nV) (Decimal) Rate (Hz) Time (ms) G = 1 G = 8 G = 16 G = 32 G = 64 G = 128
1023 4.7 852.5 340 53 34 18 12 11 96 50 80 950 150 80 50 37 31 80 60 66.7 1000 160 90 54 40 35 1 4800 0.83 26,000 3400 1700 910 530 380
Fast Settling Filter Setting Table 3. RMS Noise (nV) vs. Gain and Output Data Rate Filter Word Output Data Settling RMS Noise (nV) (Decimal) Rate (Hz) Time (ms) G = 1 G = 8 G = 16 G = 32 G = 64 G = 128
96 2.63 380 380 87 52 33 15 11 30 8.4 118.75 620 140 71 43 30 21 6 42.10 23.75 1300 270 150 82 56 47 5 50.53 19.79 1500 280 160 88 61 50 2 126.32 7.92 2300 380 210 130 88 77 1 252.63 3.96 3400 520 290 180 130 110 Rev. 0 | Page 2 of 6 Document Outline General Description Features and Benefits Key Characteristics Fundamental Specifications Noise Sinc4 Chop Disabled Filter Setting Fast Settling Filter Setting Operating the AD7193 Data Interface 4-Wire Serial Interface 3-Wire Serial Interface Data Modes Continuous Conversion Mode (Default) Continuous Read Mode Single Conversion Mode Typical Application Diagram Frequently Asked Questions Learn More and Start Designing Compatible Devices Package Diagram Getting Started
AD7193 Key Sheet KEY CHARACTERISTICS FUNDAMENTAL SPECIFICATIONS Table 1. Parameter Min Typ Max Unit
ADC Type Σ- Δ ADC Number of Input Channels Four differential or eight pseudo differential input channels Resolution 24 24 Bits Output Data Rate 4.7 4800 SPS Differential ADC Input Range −VREF/gain +VREF/gain V AVDD with Respect to AGND 3 5.25 V AIDD Current With Gain = 1, Buffer Off 0.85 1 mA With Gain = 16 to 128, Buffer On 4.3 5.3 mA DIDD Current (DVDD = 3 V) 0.35 0.4 mA Offset Error ±150/gain µV/gain Offset Error Drift vs. Temperature1 ±150/gain nV/°C/gain Full-Scale Error ±10 µV Gain Drift vs. Temperature ±1 ppm/°C Integral Nonlinearity (INL)2 −10 ±2 +10 ppm of FSR Power Supply Rejection 90 dB Operating Temperature Range −40 +105 °C 1 Gain = 1 to 16; chop disabled. 2 AVDD = 5 V, Gain = 1.
NOISE Sinc4 Chop Disabled Filter Setting Table 2. RMS Noise (nV) vs. Gain and Output Data Rate Filter Word Output Data Settling RMS Noise (nV) (Decimal) Rate (Hz) Time (ms) G = 1 G = 8 G = 16 G = 32 G = 64 G = 128
1023 4.7 852.5 340 53 34 18 12 11 96 50 80 950 150 80 50 37 31 80 60 66.7 1000 160 90 54 40 35 1 4800 0.83 26,000 3400 1700 910 530 380
Fast Settling Filter Setting Table 3. RMS Noise (nV) vs. Gain and Output Data Rate Filter Word Output Data Settling RMS Noise (nV) (Decimal) Rate (Hz) Time (ms) G = 1 G = 8 G = 16 G = 32 G = 64 G = 128
96 2.63 380 380 87 52 33 15 11 30 8.4 118.75 620 140 71 43 30 21 6 42.10 23.75 1300 270 150 82 56 47 5 50.53 19.79 1500 280 160 88 61 50 2 126.32 7.92 2300 380 210 130 88 77 1 252.63 3.96 3400 520 290 180 130 110 Rev. 0 | Page 2 of 6 Document Outline General Description Features and Benefits Key Characteristics Fundamental Specifications Noise Sinc4 Chop Disabled Filter Setting Fast Settling Filter Setting Operating the AD7193 Data Interface 4-Wire Serial Interface 3-Wire Serial Interface Data Modes Continuous Conversion Mode (Default) Continuous Read Mode Single Conversion Mode Typical Application Diagram Frequently Asked Questions Learn More and Start Designing Compatible Devices Package Diagram Getting Started
