AD7846
PRODUCTIONLC2MOS 16-Bit Voltage Output DAC
- Part Models
- 11
- 1ku List Price
- Starting From $47.57
Part Details
- 16-bit monotonicity over temperature
- ±2 LSBs integral linearity error
- Microprocessor compatible with readback capability
- Unipolar or bipolar output
- Multiplying capability
- Low power (100 mW typical)
The AD7846 is a 16-bit DAC constructed with the Analog Devices, Inc., LC2MOS process. It has VREF+ and VREF− reference inputs and an on-chip output amplifier. These can be configured to give a unipolar output range (0 V to +5 V, 0 V to +10 V) or bipolar output ranges (±5 V, ±10 V).
The DAC uses a segmented architecture. The four MSBs in the DAC latch select one of the segments in a 16-resistor string. Both taps of the segment are buffered by amplifiers and fed to a 12-bit DAC, which provides a further 12 bits of resolution. This architecture ensures 16-bit monotonicity. Excellent integral linearity results from tight matching between the input offset voltages of the two buffer amplifiers.
In addition to the excellent accuracy specifications, the AD7846 also offers a comprehensive microprocessor interface. There are 16 data I/O pins, plus control lines (CS, R/W, LDAC and CLR). R/W and CS allow writing to and reading from the I/O latch.
This is the readback function, which is useful in ATE applications. LDAC allows simultaneous updating of DACs in a multi-DAC system and the CLR line will reset the contents of the DAC latch to 00…000 or 10…000 depending on the state of R/W.
This means that the DAC output can be reset to 0 V in both the unipolar and bipolar configurations.
The AD7846 is available in 28-lead plastic, ceramic, and PLCC packages.
Product Highlights
- 16-Bit Monotonicity
The guaranteed 16-bit monotonicity over temperature makes the AD7846 ideal for closed-loop applications. - Readback
The ability to read back the DAC register contents minimizes software routines when the AD7846 is used in ATE systems. - Power Dissipation
Power dissipation of 100 mW makes the AD7846 the lowest power, high accuracy DAC on the market.
Documentation
Data Sheet 3
Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| 5962-89697013A | 28-Lead LCC | ||
| 5962-8969701XA | 28-Lead CerDIP | ||
| AD7846-CHIPS | CHIPS OR DIE | ||
| AD7846AP | 28-Lead PLCC | ||
| AD7846BPZ | 28-Lead PLCC | ||
| AD7846JNZ | 28-Lead PDIP | ||
| AD7846JPZ | 28-Lead PLCC | ||
| AD7846JPZ-REEL | 28-Lead PLCC | ||
| AD7846KNZ | 28-Lead PLCC | ||
| AD7846KPZ | 28-Lead PLCC | ||
| AD7846KPZ-REEL | 28-Lead PLCC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 9, 2018 - 16_0026 Qualify TeamQuest Technology, Inc. for Burn-in and Life Test of Military and Aerospace Devices |
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| 5962-89697013A | ||
| 5962-8969701XA | ||
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Nov 9, 2011 - 11_0050 Transfer of ADI Hermetics Assembly location from Paranaque, Manila to General Trias, Cavite Philippines |
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| 5962-89697013A | ||
| 5962-8969701XA | ||
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Nov 9, 2011 - 11_0182 Test Site Transfer from Analog Devices Philippines Inc in Paranaque to Analog Devices General Trias in Cavite, Philippines |
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| 5962-89697013A | ||
| 5962-8969701XA | ||
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
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| 5962-89697013A | ||
| 5962-8969701XA | ||
| AD7846AP | Obsolete | |
| AD7846BPZ | PRODUCTION | |
| AD7846JNZ | PRODUCTION | |
| AD7846JPZ | PRODUCTION | |
| AD7846JPZ-REEL | PRODUCTION | |
| AD7846KPZ | PRODUCTION | |
| AD7846KPZ-REEL | PRODUCTION | |
|
Feb 1, 2010 - 10_0020 Test Solutions Services, Inc.(TSSI) as Subcontractor Burn-in Facility. |
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| 5962-89697013A | ||
| 5962-8969701XA | ||
|
Nov 7, 2012 - 12_0199 Qualification of New Conductive Silver-Filled Glass Die Attach Adhesive for Cerdip and Ceramic Flatpack (Cerpack) Packages. |
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| 5962-8969701XA | ||
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Aug 19, 2009 - 07_0024 Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad |
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| AD7846AP | Obsolete | |
| AD7846JNZ | PRODUCTION | |
| AD7846KNZ | PRODUCTION | |
|
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek |
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| AD7846JNZ | PRODUCTION | |
| AD7846KNZ | PRODUCTION | |
|
Jun 19, 2017 - 17_0038 Obsolescence of Lead (Pb)-Bearing Packages |
||
| AD7846AP | Obsolete | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD5760 | PRODUCTION | Ultra Stable 16-Bit ±0.5 LSB INL, Voltage Output DAC |
| AD5761R | PRODUCTION | Multiple Range, 16-Bit, Bipolar Voltage Output DACs with 2 PPM/⁰C Reference |
| AD5541A | PRODUCTION | 2.7 V to 5.5 V, Serial-Input, Voltage-Output, 16-/12-Bit nanoDAC™ in 8-lead 3 mm × 3 mm LFCSP |
Tools & Simulations
Precision DAC Error Budget Tool
The Precision DAC Error Budget Tool is a web application that calculates the DC Accuracy of precision DAC signal chains. It shows how the static errors accumulate throughout your signal chain to quickly evaluate the design tradeoffs. Calculations include the DC errors introduced by Voltage References, Operation Amplifiers and Precision DACs.
Open Tool