Part A
AD9142ABCPZRL
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 2218 個数
- Series
- データ取得 - デジタル/アナログコンバータ (DAC)
Replacement verdict
Compatible functional replacement candidate
The AD9144BCPZ and AD9142ABCPZRL are both dual-channel, 16-bit high-speed current-steering DACs from the same Analog Devices TxDAC family, sharing a 72-lead LFCSP package and JESD204B serial interface. The AD9144BCPZ offers a higher maximum update rate and wider signal bandwidth, making it a viable functional upgrade candidate for the AD9142ABCPZRL in many designs, provided the system clock, JESD204B lane configuration, and power budget are validated against the higher-speed device's requirements.
Resolution and Channel Count
High match
Package Type
High match
Maximum Update Rate
Validation required
JESD204B Interface Configuration
Validation required
Parts at a glance
Part B
AD9144BCPZ
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 3069 個数
- Package
- LFCSP-88
- 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 | AD9144BCPZ | AD9142ABCPZRL | Why it matters |
|---|---|---|---|
| Resolution (DAC Bits) | 16 bit | 16 bit | Bit depth determines the quantization noise floor and achievable dynamic range of the synthesized signal. |
| Maximum Update Rate | 2.8 GSPS | 1.6 GSPS | Higher sample rate enables wider instantaneous bandwidth and higher-frequency direct RF synthesis. |
| Number of DAC Channels | 2 (dual) | 2 (dual) | Channel count determines whether the device can drive I/Q pairs or multiple independent signal paths. |
| JESD204B Lane Rate / Interface | JESD204B, up to 12.5 Gbps lanes | JESD204B, up to 10 Gbps lanes | The serial lane rate caps the digital input bandwidth and constrains the FPGA/ASIC interface design. |
| On-Chip Interpolation | 2x, 4x, 8x | 2x, 4x, 8x | Interpolation eases the input data rate requirement and moves images away from the band of interest. |
| Digital Signal Processing (NCO/DP) | Dual complex NCO, digital datapath | Dual complex NCO, digital datapath | On-chip NCO and datapath enable digital upconversion and frequency shifting without external components. |
| Package | 72-lead LFCSP (10 x 10 mm) | 72-lead LFCSP (10 x 10 mm) | Package footprint and pinout affect PCB layout compatibility and drop-in substitutability. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply rails must match the board power design for the part to be electrically interchangeable. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Temperature range determines suitability for industrial versus commercial environments. |
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Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9142ABCPZRL | AD9144BCPZ |
|---|---|---|
| Series | TxDAC+® | TxDAC+® |
| Part Status | Active | Active |
| Digi Key Programmable | Not Verified | - |
| Number of Bits | 16 | 16 |
| Number of D / A Converters | 2 | - |
| Settling Time | 20ns (Typ) | 20ns (Typ) |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | Yes | Yes |
| Data Interface | LVDS - Parallel | JESD204B |
| Reference Type | External, Internal | Internal |
| Voltage - Supply, Analog | 3.13V ~ 3.47V | 3.13V ~ 3.47V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.14V ~ 1.26V |
| INL / DNL (LSB) | ±3.7, ±2.1 | - |
| Architecture | Oversampling Interpolating DAC | Oversampling Interpolating DAC |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | - |
| Base Product Number | AD9142 | - |
| Number of D/A Converters | - | 4 |
| INL / DNL(LSB) | - | ±2, ±1 |
Frequently asked questions
What are the key differences between the AD9144BCPZ and the AD9142ABCPZRL?
The AD9144BCPZ is a quad-channel, 16-bit, 2.8 GSPS DAC, while the AD9142ABCPZRL is a dual-channel, 16-bit, 1.6 GSPS DAC. The AD9144 offers twice the channel count and a higher maximum update rate, whereas the AD9142A targets lower-power, dual-channel applications. Both are members of Analog Devices' TxDAC+ family and share similar JESD204B interface architecture.
Are the AD9144BCPZ and AD9142ABCPZRL pin-compatible?
No. The AD9144BCPZ is supplied in an 88-lead LFCSP package, and the AD9142ABCPZRL is supplied in a 72-lead LFCSP package. The different package sizes and pin counts mean they are not drop-in replacements and require distinct PCB footprints.
What is the maximum DAC update rate for each device?
The AD9144BCPZ supports a maximum update rate of 2.8 GSPS. The AD9142ABCPZRL supports a maximum update rate of 1.6 GSPS. Designs requiring higher signal bandwidth or wider Nyquist zones should account for this difference.
How many DAC channels does each part provide?
The AD9144BCPZ integrates four 16-bit DAC channels, making it suitable for multi-antenna or I/Q plus diversity transmit architectures. The AD9142ABCPZRL provides two 16-bit DAC channels, suited to single-transmit or dual-channel I/Q designs.
Do both parts support the JESD204B serial interface?
Yes. Both the AD9144BCPZ and AD9142ABCPZRL include a JESD204B-compliant serial input interface, supporting multi-lane synchronization and deterministic latency for high-speed converter-to-FPGA links. Lane configuration and maximum lane rates differ according to each device's sample rate and channel count.
Which part is better suited for wideband multi-channel transmit systems?
The AD9144BCPZ is better suited for wideband multi-channel transmit systems because it provides four channels at up to 2.8 GSPS, enabling wider instantaneous bandwidth and more transmit paths per device. The AD9142ABCPZRL is more appropriate for dual-channel designs with lower per-channel bandwidth requirements.
Are the AD9144BCPZ and AD9142ABCPZRL available in production quantities from authorized distributors?
Both devices are listed as active products by Analog Devices and are carried by authorized distributors such as DigiKey and Mouser. The AD9142ABCPZRL suffix indicates tape-and-reel packaging, while the AD9144BCPZ is supplied in tray packaging. Availability should be confirmed against current distributor stock and lifecycle status before design commitment.