Save time and deliver your solutions faster with ADI’s new suite of precision technology signal chains. Align your applications ranging from Smart Industry to Instrumentation, Electrification to Digital Health, to exactly the right precision technology combinations.
Tailor your signal chain with confidence
MAX9697
Obsolete12-Channel Programmable Gamma Reference System
12-Channel Programmable Gamma Reference System with SPI Interface
Overview
- 12 Programmable Reference Voltages with 10-Bit Resolution
- Controlled Ramp-Up of Reference Voltages
- Adjustable LDO
- Current-Sense Comparator
- 10V to 18V Analog Supply Range
- 2.3V to 3.6V Digital Supply Range
- SPI Interface
The MAX9697 12-channel programmable gamma reference system provides 12 programmable reference voltages with 10-bit resolution. These voltages can be used for gamma correction in TFT-LCD displays, as a VCOM reference, or as sources for level shifter inputs. Each reference voltage features a 10-bit digital-to-analog converter (DAC) and buffer with high peak current to reduce the recovery time of the output voltages when critical levels and patterns are displayed.
An adjustable, low-dropout linear regulator (LDO) further improves the stability and accuracy of the DAC outputs by creating the DAC reference. The MAX9697's integrated gate-driver output controls an external p-channel FET to slowly turn on the linear regulator so that the reference voltages ramp up in a controlled manner.
The MAX9697 has a serial peripheral interface (SPI™) bus for programming the reference voltages. The device also has a current-sense comparator to detect an abnormally high supply current in other areas of the application circuit.
The MAX9697 is available in a 28-pin TQFN package and is specified for operation over the -40°C to +125°C temperature range.
Applications
- TFT-LCD Panels
Documentation
Reliability Data 1
Request an NDA
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).
Request an NDAHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Digital to Analog Converters (DACs) 1 | ||
| MAX9669 | PRODUCTION | 10-Bit Programmable Gamma Reference System with MTP for TFT LCDs |
| Level Translators & Buffers 3 | ||
| MAX9694 | Obsolete | 14 Programmable Gamma Reference Buffers with Four Static References for TFT LCDs |
| MAX9591 | Obsolete | 14 Programmable Gamma Reference Buffers with Four Static References for TFT-LCD Displays |
| MAX9590 | Obsolete | 14 Programmable Gamma Reference Buffers with 4 Static References for TFT-LCD Displays |
| Product 1 | ||
| MAX5679 | Digitally Programmable LCD Gamma Reference Generator with Digital Voltage Reference | |
Latest Discussions
No discussions on MAX9697 yet. Have something to say?
Start a Discussion on EngineerZone®