Part A
AD976AARZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 1424 個数
- Package
- SOIC-28
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Not a drop-in replacement
The AD976AARZ and AD9760ARUZ50RL7 are not drop-in replacements for each other. Although both are 10-bit high-speed CMOS analog-to-digital converters, they differ in resolution architecture, package footprint, and interface timing, so a direct board-level substitution is not possible without design changes.
Different package footprint
Different pin configuration
Different interface timing
Different supply architecture
Parts at a glance
Part B
AD9760ARUZ50RL7
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4123 個数
- Package
- TSSOP-28
- Series
- データ取得 - デジタル/アナログコンバータ (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 | AD976AARZ | AD9760ARUZ50RL7 | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 10 bit | Resolution determines the number of discrete output levels; a 16-bit DAC offers far finer quantization than a 10-bit DAC, so they are not functionally interchangeable in precision applications. |
| Sampling / Update Rate | 200 kSPS | 125 MSPS | The maximum update rate defines the signal bandwidth the DAC can synthesize; the two parts differ by orders of magnitude, targeting very different speed classes. |
| Number of DAC Channels | 1 | 1 | Both are single-channel DACs, so channel count alone does not distinguish them, but it confirms neither offers multi-channel integration. |
| Output Type | Voltage (unbuffered) | Current (differential) | Voltage versus current output requires different external signal conditioning; a current-output DAC typically needs an op-amp I/V stage, affecting board design and substitutability. |
| Interface | Parallel | Parallel | Both use a parallel interface, but the bus width differs with resolution, so the host controller wiring and timing must match the specific device. |
| Supply Voltage | 5 V (analog and digital) | 3.0 V to 3.6 V | Different supply rails mean the parts cannot drop into the same socket without supply redesign; logic levels and analog headroom also differ. |
| Package | 28-lead SOIC | 28-lead TSSOP | Package footprint and pinout must match for a physical drop-in replacement; SOIC and TSSOP are not footprint-compatible. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Matching industrial temperature ranges indicate both are suitable for the same environmental conditions, an important compatibility check. |
| Typical Power Dissipation | 100 mW | 175 mW | Power dissipation affects thermal design and supply sizing; the higher-speed part consumes more, which may require different decoupling and thermal considerations. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD976AARZ | AD9760ARUZ50RL7 |
|---|---|---|
| Supplier | - | Analog Devices Inc. |
| Series | - | TxDAC® |
| Part Status | Active | Active |
| Number of Bits | 16 | 10 |
| Number of D/A Converters | - | 1 |
| Settling Time | - | 35ns (Typ) |
| Output Type | - | Current - Unbuffered |
| Differential Output | - | Yes |
| Data Interface | Parallel | Parallel |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 5V | 2.7V ~ 5.5V |
| Voltage - Supply, Digital | 5V | 2.7V ~ 5.5V |
| INL / DNL(LSB) | - | ±0.5, ±0.25 |
| Architecture | SAR | Current Source |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Sampling Rate(Per Second) | 200k | - |
| Number of Inputs | 1 | - |
| Input Type | Single Ended | - |
| Configuration | S/H-ADC | - |
| Ratio - S / H: ADC | 1:1 | - |
| Number of A/D Converters | 1 | - |
Frequently asked questions
What are the key differences between the AD976AARZ and the AD9760ARUZ50RL7?
The AD976AARZ is a 16-bit, 200 kSPS parallel-output CMOS ADC in a 28-lead SOIC package, while the AD9760ARUZ50RL7 is a 10-bit, 50 MSPS high-speed DAC in a 28-lead TSSOP package. They differ in resolution, conversion speed, data interface, and primary function (ADC versus DAC).
Are the AD976AARZ and AD9760ARUZ50RL7 functionally interchangeable?
No. The AD976AARZ is an analog-to-digital converter with a parallel digital output, and the AD9760ARUZ50RL7 is a digital-to-analog converter with a parallel digital input. They serve opposite signal-chain roles and cannot be substituted for one another.
What are the supply voltage and power requirements for each device?
The AD976AARZ operates from a single 5 V analog supply with a separate 5 V digital supply. The AD9760ARUZ50RL7 operates from a single 3.0 V to 3.6 V supply (nominally 3.3 V). Designers must verify the exact supply rails against the respective datasheets before layout.
What package types are used by the AD976AARZ and AD9760ARUZ50RL7?
The AD976AARZ is supplied in a 28-lead SOIC package, while the AD9760ARUZ50RL7 is supplied in a 28-lead TSSOP package. The two packages have different footprints and PCB land patterns, so they are not drop-in compatible.
What are the maximum sampling or update rates of these parts?
The AD976AARZ provides a maximum throughput of 200 kSPS. The AD9760ARUZ50RL7 supports an update rate of 50 MSPS. These rates reflect their different roles: precision low-speed conversion versus high-speed signal synthesis.
What digital interface does each device use?
The AD976AARZ provides a 16-bit parallel digital output for connection to a host processor or DSP. The AD9760ARUZ50RL7 accepts a 10-bit parallel digital input. Both use parallel interfaces, but the data width and direction differ.
In what applications is each device typically used?
The AD976AARZ is suited to precision data acquisition, instrumentation, and industrial measurement where 16-bit resolution at moderate speed is required. The AD9760ARUZ50RL7 is suited to high-speed signal synthesis such as communications, waveform generation, and digital signal reconstruction.
Can the AD976AARZ and AD9760ARUZ50RL7 be used together in the same signal chain?
Yes, they can coexist in a system where the AD9760ARUZ50RL7 generates an analog waveform and the AD976AARZ digitizes a separate precision signal. However, they are not a matched converter pair, and system-level performance must be validated against each datasheet.