BUY AD7247ABNZ https://www.utsource.net/itm/p/6352953.html
The AD7237A/AD7247A is an enhanced version of the industry standard AD7237/AD7247. Improvements include operation from 12 V to 15 V supplies, faster interface times and better reference variations with VDD . Additional features include faster settling times. The AD7237A/AD7247A is a complete, dual, 12-bit, voltage output digital-to-analog converter with output amplifiers and Zener voltage reference on a monolithic CMOS chip. No external user trims are required to achieve full specified performance. Both parts are microprocessor compatible, with high speed data latches and interface logic. The AD7247A accepts 12-bit parallel data which is loaded into the respective DAC latch using the WR input and a separate Chip Select input for each DAC. The AD7237A has a double buffered interface structure and an 8-bit wide data bus with data loaded to the respective input latch in two write operations. An asynchronous LDAC signal on the AD7237A updates the DAC latches and analog outputs. A REF OUT/REF IN function is provided which allows either the on-chip 5 V reference or an external reference to be used as a reference voltage for the part. For single supply operation, two output ranges of 0 V to +5 V and 0 V to +10 V are available, while these two ranges plus an additional ±5 V range are available with dual supplies. The output amplifiers are capable of developing +10 V across a 2 k(ohm) load to GND. The AD7237A/AD7247A is fabricated in Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic. Both parts are available in a 24-pin, 0.3" wide plastic and hermetic dual-in-line package (DIP) and are also packaged in a 24-lead small outline (SOIC) package.

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VDD		2.7	3.3	5.25	V
Supply Current	IDD			1.6		mA
Differential Input Range	VIN+ - VIN-	AVDD = 3.3V, AGND = 0V	0		2.5	V
Output Voltage Range	VOUT	AVDD = 3.3V, AGND = 0V	0		2.5	V
Output Impedance	ZOUT	f = 1 kHz		1		Ω
Bandwidth	BW			1.8		MHz
Signal-to-Noise Ratio	SNR	fS = 100 kSPS		90		dB
Total Harmonic Distortion	THD	fS = 100 kSPS		-95		dB
Power-Down Mode Current	IDD	Power-down mode		1		μA
Operating Temperature	Toper		-40		125	°C
Storage Temperature	Tstg		-65		150	°C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (VDD) is within the range of 2.7V to 5.25V.
   • The typical supply current (IDD) is 1.6mA.

2. Input Signals:

   • The differential input range (VIN+ - VIN-) should be between 0V and 2.5V when AVDD = 3.3V and AGND = 0V.
   • Ensure the input signals do not exceed the specified differential input range to avoid damage or incorrect operation.

3. Output Signals:

   • The output voltage range (VOUT) is from 0V to 2.5V when AVDD = 3.3V and AGND = 0V.
   • The output impedance (ZOUT) at 1kHz is typically 1Ω.

4. Performance:

   • The bandwidth (BW) is typically 1.8MHz.
   • The signal-to-noise ratio (SNR) at a sampling rate (fS) of 100 kSPS is typically 90dB.
   • The total harmonic distortion (THD) at a sampling rate (fS) of 100 kSPS is typically -95dB.

5. Power Management:

   • In power-down mode, the supply current (IDD) is reduced to approximately 1μA.

6. Temperature Considerations:

   • The operating temperature (Toper) range is from -40°C to 125°C.
   • The storage temperature (Tstg) range is from -65°C to 150°C.

7. Handling and Storage:

   • Store the device in a dry, cool place to prevent moisture damage.
   • Handle with care to avoid static discharge, which can damage the device.

8. Layout and PCB Design:

   • Use proper grounding techniques to minimize noise and interference.
   • Place decoupling capacitors close to the power pins to ensure stable operation.

For more detailed information, refer to the datasheet provided by the manufacturer.

(For reference only)