Specifications
| Type | Description |
|---|---|
| Part Number | AD7402-8BRIZ |
| Manufacturer | Analog Devices |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | 8-lead wide-body SOIC with increased creepage; dimensions not shown in provided content |
| Resolution | 16 bits; filter output truncated to 16 bits |
| No Missing Codes | Guaranteed to 16 bits; DNL guaranteed no missed codes |
| Integral Nonlinearity | ±1 typ, ±5 max LSB; VDD1=4.5 V to 5.5 V, VDD2=3 V to 5.5 V, VIN+=-250 mV to +250 mV, VIN-=0 V, TA=-40°C to +105°C, sinc3 filter, 256 decimation rate |
| Differential Nonlinearity | ±0.99 max LSB; guaranteed no missed codes to 16 bits |
| Offset Error | ±0.2 typ, ±0.75 max mV; specified operating conditions |
| Offset Drift vs Temperature | 1.7 typ, 5 max µV/°C; TA=-40°C to +105°C |
| Offset Drift vs VDD1 | 85 typ µV/V; VDD1 supply variation |
| Gain Error | 0.2 typ, ±0.5 max % FSR; specified operating conditions |
| Gain Error Drift vs Temperature | 18 typ, 32 max ppm/°C; TA=-40°C to +105°C |
| Gain Error Drift vs Temperature | 11 typ, 20 max µV/°C; TA=-40°C to +105°C |
| Gain Error Drift vs VDD1 | 0.2 typ mV/V; VDD1 supply variation |
| Analog Input Voltage Range | -320 to +320 mV; full-scale analog input range |
| Recommended Differential Input Signal | ±250 mV; general description operating input signal |
| Input Common-Mode Voltage Range | -200 to +300 mV; analog input specification |
| Dynamic Input Current | ±19 typ, ±28 max µA; VIN+=±250 mV, VIN-=0 V |
| Dynamic Input Current | 0.05 typ µA; VIN+=0 V, VIN-=0 V |
| Input Capacitance | 14 typ pF; analog input |
| Signal-to-Noise and Distortion Ratio | 74 min, 82 typ dB; VIN+=35 Hz, sinc3 filter, 256 decimation rate |
| Signal-to-Noise Ratio | 86 min, 87 typ dB; VIN+=35 Hz, sinc3 filter, 256 decimation rate |
| Total Harmonic Distortion | -84 typ dB; VIN+=35 Hz |
| Spurious-Free Dynamic Range | -84 typ dB; peak harmonic or spurious noise, VIN+=35 Hz |
| Effective Number of Bits | 12 min, 13.5 typ bits; VIN+=35 Hz |
| Noise-Free Code Resolution | 14 typ bits; VIN+=35 Hz |
| Isolation Transient Immunity | 25 min, 30 typ kV/µs; common-mode transient immunity |
| Output High Voltage | VDD2 - 0.1 min V; IO=-200 µA |
| Output Low Voltage | 0.4 max V; IO=+200 µA |
| VDD1 Supply Voltage | 4.5 to 5.5 V; analog-side power requirement |
| VDD2 Supply Voltage | 3 to 5.5 V; digital-side power requirement |
| VDD1 Supply Current | 26 typ, 31 max mA; VDD1=5.5 V |
| VDD2 Supply Current | 6 typ, 7 max mA; VDD2=5.5 V |
| VDD2 Supply Current | 4.5 typ, 5.5 max mA; VDD2=3.3 V |
| Power Dissipation | 209 typ mW; VDD1=VDD2=5.5 V |
| Internal Clock Rate | 10 MHz; on-chip clock |
| Master Clock Output Frequency | 9.4 min, 10 typ, 10.6 max MHz; VDD1=4.5 V to 5.5 V, VDD2=3 V to 5.5 V, TA=-40°C to +105°C |
| Data Access Time | ±10 max ns; after MCLKOUT rising edge; measured with ±200 µA load and 25 pF load capacitance |
| Data Hold Time | 44 max ns; after MCLKOUT falling edge; measured with ±200 µA load and 25 pF load capacitance |
| Master Clock Low Time | 33 min ns; clock output mark-space ratio 45/55 to 55/45 |
| Master Clock High Time | 33 min ns; clock output mark-space ratio 45/55 to 55/45 |
| Input-to-Output Resistance | 10^12 typ Ω; pins 1 to 4 shorted together and pins 5 to 8 shorted together |
| Input-to-Output Capacitance | 2.2 typ pF; f=1 MHz; pins 1 to 4 shorted together and pins 5 to 8 shorted together |
| Junction-to-Ambient Thermal Resistance | 105 typ °C/W; thermocouple at center of package underside; 4-layer board with thin traces |
| Input-to-Output Momentary Withstand Voltage | 5000 min V; 1-minute duration |
| Minimum External Air Gap Clearance | 8.1 min mm; measured input terminals to output terminals, shortest distance through air |
| Minimum External Tracking Creepage | 8.1 min mm; measured input terminals to output terminals, shortest distance path along body |
| Minimum Internal Clearance | 0.034 min mm; insulation distance through insulation |
| Comparative Tracking Index | >400 V; DIN IEC 112/VDE 0303 Part 1 |
| Isolation Group | II; Material Group per DIN VDE 0110, 1/89, Table I |
| UL Isolation Voltage | 5000 V rms; recognized under UL 1577 Component Recognition Program, single protection |
| CSA Basic Insulation Working Voltage | 810 V rms, 1145 VPEAK max; CSA 60950-1-07 and IEC 60950-1, pollution degree 2, Material Group III calculation |
| CSA Reinforced Insulation Working Voltage | 405 V rms, 583 VPEAK max; CSA 60950-1-07 and IEC 60950-1 |
| IEC 60601-1 Reinforced Insulation Working Voltage | 250 V rms, 353 VPEAK max; CSA listing notes |
| VDE Reinforced Insulation Working Voltage | 1250 VPEAK; DIN V VDE V 0884-10:2006-12 |
| Maximum Working Insulation Voltage | 1250 VPEAK; DIN V VDE V 0884-10 insulation characteristic |
| Input-to-Output Test Voltage Method B1 | 2344 VPEAK; VPR=VIORM x 1.875, 100% production test, tm=1 s, partial discharge <5 pC |
| Input-to-Output Test Voltage Method A After Environmental Test | 2000 VPEAK; VPR=VIORM x 1.6, tm=60 s, partial discharge <5 pC |
| Input-to-Output Test Voltage Method A After Safety Test | 1500 VPEAK; VPR=VIORM x 1.2, tm=60 s, partial discharge <5 pC |
| Highest Allowable Transient Overvoltage | 8000 VPEAK; tTR=10 seconds |
| Surge Isolation Voltage | 12000 VPEAK; 1.2 µs rise time, 50 µs 50% fall time |
| Safety Limiting Case Temperature | 150°C; maximum value allowed in event of failure |
| Safety Limiting Power Dissipation | 1.19 W; Side 1 VDD1 and Side 2 VDD2 power dissipation, maximum allowed in event of failure |
| Insulation Resistance | >10^9 Ω; TS, VIO=500 V |
| VDD1 Absolute Maximum | -0.3 to +6.5 V; VDD1 to GND1, TA=25°C unless otherwise noted |
| VDD2 Absolute Maximum | -0.3 to +6.5 V; VDD2 to GND2, TA=25°C unless otherwise noted |
| Analog Input Absolute Maximum | -1 V to VDD1 + 0.3 V; analog input voltage to GND1 |
| Output Voltage Absolute Maximum | -0.3 V to VDD2 + 0.3 V; output voltage to GND2 |
| Input Current Absolute Maximum | ±10 mA; any pin except supplies; transient currents up to 100 mA do not cause SCR latch-up |
| Operating Temperature Range | -40°C to +105°C; device operating range |
| Storage Temperature Range | -65°C to +150°C; absolute maximum rating |
| Junction Temperature | 150°C; absolute maximum rating |
| Reflow Soldering Temperature | 260°C; Pb-free temperature, soldering reflow |
| ESD Rating | 2 kV; absolute maximum ratings table |
| FICDM ESD Rating | ±1250 V; JESD22-C101, RC network 1 Ω, package capacitance, Class IV |
| HBM ESD Rating | ±4000 V; ESDA/JEDEC JS-001-2011, RC network 1.5 kΩ, 100 pF, Class 3A |
| Maximum Continuous Working Voltage Bipolar AC | 1250 VPEAK; 20-year minimum lifetime, VDE approved working voltage |
| Maximum Continuous Working Voltage Unipolar AC | 1250 VPEAK; 20-year minimum lifetime |
| Maximum Continuous Working Voltage DC | 1250 VPEAK; 20-year minimum lifetime |
| Datasheet Status | request_only |
Product Overview
AD7402-8BRIZ is an Analog Devices isolated sigma-delta modulator for Signal_Chain designs requiring an isolated low-level differential input path. The extracted datasheet facts specify a recommended ±250 mV differential input signal, a -320 mV to +320 mV full-scale analog input range, and an input common-mode range from -200 mV to +300 mV.
Conversion performance is specified with a sinc3 filter and 256 decimation rate, including 16-bit truncated output, no missing codes guaranteed to 16 bits, ±1 LSB typical and ±5 LSB maximum INL, and ±0.99 LSB maximum DNL. Dynamic performance at a 35 Hz input includes 82 dB typical SINAD, 87 dB typical SNR, -84 dB typical THD, and 13.5 typical effective bits.
The package is described as an 8-lead wide-body SOIC with increased creepage. Isolation-related facts include 5000 V rms UL isolation voltage, 8.1 mm minimum clearance and creepage, 1250 VPEAK maximum working insulation voltage, and 25 kV/µs minimum common-mode transient immunity.
Key Features
- Isolated sigma-delta modulator for Signal_Chain designs
- 16-bit truncated filter output
- No missing codes guaranteed to 16 bits
- ±250 mV recommended differential input signal
- -320 mV to +320 mV full-scale input range
- 82 dB typical SINAD at 35 Hz input
- 87 dB typical SNR at 35 Hz input
- 10 MHz on-chip internal clock
- 25 kV/µs minimum common-mode transient immunity
- 5000 V rms UL isolation voltage
- 8.1 mm minimum clearance and creepage
- -40°C to +105°C operating temperature range
Typical Applications
- Isolated signal-chain measurement
- Low-level differential input conversion
- Current shunt signal acquisition
- Isolated analog-to-digital interfaces
- Systems using 3 V to 5.5 V logic
- Wide-body SOIC isolation layouts
- High transient immunity measurement channels
Procurement Notes
When requesting a quote for AD7402-8BRIZ, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of device is AD7402-8BRIZ?
AD7402-8BRIZ is an Analog Devices isolated sigma-delta modulator in the Signal_Chain category. The provided facts specify a recommended ±250 mV differential input signal, 16-bit truncated filter output, and separate VDD1 and VDD2 supply domains.
What package is specified for AD7402-8BRIZ?
The package is described as an 8-lead wide-body SOIC with increased creepage. The provided content does not include package dimensions, but it specifies 8.1 mm minimum external air gap clearance and 8.1 mm minimum external tracking creepage.
What are the main input range specifications?
The full-scale analog input range is -320 mV to +320 mV, while the recommended differential input signal is ±250 mV. The input common-mode voltage range is specified from -200 mV to +300 mV.
What isolation ratings are provided?
Extracted isolation facts include 5000 V rms UL isolation voltage, 5000 V minimum momentary withstand voltage for one minute, 1250 VPEAK maximum working insulation voltage, and 25 kV/µs minimum common-mode transient immunity.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: August 17, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.