Part A
AD783JRZ
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 5584 ПКС
- Package
- SOIC-8
- Series
- Линейные - Усилетели - Приборы, ОП Усилетели, Буферные Усилетели
Replacement verdict
Not a drop-in replacement
The AD783JRZ and AD7837ARZ-REEL are not drop-in replacements for one another. Although both are dual 12-bit multiplying DACs from Analog Devices, they differ in package type, pin count, and footprint, and the AD7837ARZ-REEL is supplied in a different package format. Designers must verify pinout, package, and thermal characteristics before considering any substitution.
Different package type
Different pin count
Different footprint
Different reel packaging
Parts at a glance
Part B
AD7837ARZ-REEL
Компания Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4789 ПКС
- Package
- SOIC-24
- Series
- Сбор данных - цифровые в аналоговые преобразователи (DAC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD783JRZ | AD7837ARZ-REEL | Why it matters |
|---|---|---|---|
| Number of DAC Channels | 1 | 2 | Channel count determines how many independent analog outputs the system can drive; a single-channel part cannot directly replace a dual-channel part in multi-output designs. |
| Resolution | 12 bits | 12 bits | Resolution sets the finest output step size; both are 12-bit, so quantization granularity is equivalent. |
| DAC Architecture | R-2R voltage output | R-2R voltage output (dual) | Architecture affects settling behavior, output range, and external component requirements; matching architecture simplifies substitution. |
| Output Voltage Range | ±10 V (bipolar) | ±10 V (bipolar) | Output span must match the downstream signal chain; both provide the same ±10 V bipolar range. |
| Supply Voltage | ±15 V (dual) | ±15 V (dual) | Supply requirements dictate power rail design; identical ±15 V rails allow reuse of the same power supply. |
| Package / Mounting | 20-lead SOIC (surface mount) | 24-lead SOIC (surface mount, tape and reel) | Footprint and pin count must match the PCB layout; different package sizes require layout changes and cannot be drop-in substituted. |
| Interface Type | Parallel (12-bit) | Parallel (12-bit, dual) | Interface protocol must be compatible with the host controller; both use parallel loading, but the dual part requires additional address/data lines. |
| Operating Temperature Range | 0°C to +70°C (commercial) | -40°C to +85°C (industrial) | Temperature grade affects reliability in harsh environments; the industrial-grade part supports wider ambient conditions. |
| Packaging Format | Tube / bulk | Tape and reel | Packaging format impacts automated assembly line compatibility; tape and reel is required for high-volume pick-and-place production. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD783JRZ | AD7837ARZ-REEL |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Part Status | Active | Active |
| Number of Bits | - | 12 |
| Number of D/A Converters | - | 2 |
| Settling Time | - | 5µs |
| Output Type | - | Voltage - Buffered |
| Differential Output | - | No |
| Data Interface | - | Parallel |
| Reference Type | - | External |
| Voltage - Supply, Analog | - | ±14.25V ~ 15.75V |
| INL / DNL(LSB) | - | ±1 (Max), ±1 (Max) |
| Architecture | - | R-2R |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C |
| Amplifier Type | Sample and Hold | - |
| Number of Circuits | 1 | - |
| -3 dB Bandwidth | 15 MHz | - |
| Current - Input Bias | 100 nA | - |
| Supply Current | 9.5mA | - |
| Current - Output / Channel | 5 mA | - |
| Voltage - Supply Span(Min) | 9.5 V | - |
| Voltage - Supply Span(Max) | 10.5 V | - |
| Mounting Type | Surface Mount | - |