AD7528JRZ.pdf


The AD7528JRZ is a CMOS dual 8-bit buffered multiplying digital-to-analog converter from Analog Devices. It integrates two matched DAC channels with separate on-chip latches, reference inputs, and feedback resistors for DAC A and DAC B. Each channel supports four-quadrant multiplication. Typical applications identified by Analog Devices include digital gain and attenuation control, filter-parameter control, stereo audio circuits, and X-Y graphics. The AD7528JRZ is the J-grade model supplied in a 20-lead wide SOIC package.
Both DAC latches share a common 8-bit digital input port, while the DAC A/DAC B control input selects which channel receives the data. The load cycle is similar to a random-access-memory write cycle, and the device is bus compatible with most 8-bit microprocessors, including the 6800, 8080, 8085, and Z80. At a +5 V supply, the input buffers accept the specified TTL levels and convert them to CMOS logic. At a +15 V supply, the specified input logic levels are CMOS-compatible only. The supported supply range is +5 V to +15 V. Analog Devices specifies 1% DAC-to-DAC matching. For the J grade, relative accuracy is ±1 LSB maximum and differential nonlinearity is ±1 LSB maximum. Monotonicity is guaranteed across the full −40°C to +85°C operating temperature range. The manufacturer's general description states 20 mW power dissipation but does not identify this figure as a guaranteed maximum. The AD7528 product family is not recommended for new designs, while the AD7528JRZ orderable model remains classified as production.
| Parameter | AD7528JRZ Specification |
|---|---|
| Manufacturer | Analog Devices |
| Device Type | CMOS dual 8-bit buffered multiplying digital-to-analog converter |
| Resolution | 8 bits |
| DAC Channels | 2 |
| Package | 20-lead wide SOIC (SOIC-20) |
| Lead Count | 20 |
| Supply Voltage | +5 V to +15 V |
| DAC-to-DAC Matching | 1% |
| Relative Accuracy | ±1 LSB maximum, J grade |
| Differential Nonlinearity | ±1 LSB maximum |
| Digital Interface | Common 8-bit TTL/CMOS-compatible input port; logic levels depend on the supply voltage |
| Bus Compatibility | Compatible with most 8-bit microprocessors, including 6800, 8080, 8085, and Z80 |
| Operating Temperature | −40°C to +85°C, J grade |
| Power Dissipation | 20 mW stated in the Analog Devices general description; not specified there as a guaranteed maximum |
| Lifecycle Status | Production; AD7528 family not recommended for new designs |
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the AD7528JRZ we delivered, we will accept the replacement or return of the AD7528JRZ only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of AD7528JRZ.
(3)The PartNo is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
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| Part Number | AD7528JRZ | AD7528JRZ-REEL7 |
| Manufacturer | Analog Devices Inc. | Analog Devices Inc. |
| Series | - | - |
| Package/Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Packaging | Tube | Tape & Reel (TR) |
| Product Status | Active | Active |
| Programmable | Not Verified | Not Verified |
| Number of Bits | 8 | 8 |
| Number of D/A Converters | 2 | 2 |
| Settling Time | 400ns | 400ns |
| Output Type | Current - Unbuffered | Current - Unbuffered |
| Differential Output | No | No |
| Data Interface | Parallel | Parallel |
| Reference Type | External | External |
| Voltage - Supply, Analog | 5V ~ 15V | 5V ~ 15V |
| Voltage - Supply, Digital | 5V ~ 15V | 5V ~ 15V |
| INL/DNL (LSB) | ±1 (Max), ±1 (Max) | ±1 (Max), ±1 (Max) |
| Architecture | R-2R | R-2R |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Supplier Device Package | 20-SOIC | 20-SOIC |
| Mounting Type | Surface Mount | Surface Mount |
| Grade | - | - |
| Qualification | - | - |

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