DAC7568IAPWR Data Converter IC Digital to Analog Converters - DAC 12B,Oct Ch,Ultra-Lo Glitch,Vltg Out DAC
dac integrated circuit
,da converter chip
DAC7568IAPWR Data Converter IC Digital to Analog Converters - DAC 12B,Oct Ch,Ultra-Lo Glitch,Vltg Out DAC
1 Features
- Relative Accuracy:
-
– DAC7568 (12-Bit): 0.3 LSB INL
-
– DAC8168 (14-Bit): 1 LSB INL
-
– DAC8568 (16-Bit): 4 LSB INL
-
Glitch Energy: 0.1nV-s
-
Internal Reference:
-
– 2.5V Reference Voltage (disabled by default)
-
– 0.004% Initial Accuracy (typ)
-
– 2ppm/°C Temperature Drift (typ)
-
– 5ppm/°C Temperature Drift (max)
-
– 20mA Sink/Source Capability
-
-
Power-On Reset to Zero Scale or Midscale
-
Ultralow Power Operation: 1.25mA at 5V Including Internal Reference Current
-
Wide Power-Supply Range: +2.7V to +5.5V
-
Monotonic Over Entire Temperature Range
-
Low-Power Serial Interface with Schmitt-Triggered Inputs: Up to 50MHz
-
On-Chip Output Buffer Amplifier with Rail-to-Rail Operation
-
Temperature Range: –40°C to +125°C
2 Applications
-
Portable Instrumentation
-
Closed-Loop Servo-Control/Process Control
-
Data Acquisition Systems
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Programmable Attenuation, Digital Gain, and Offset Adjustment
-
Programmable Voltage and Current Sources
3 Description
The DAC7568, DAC8168, and DAC8568 are low- power, voltage-output, eight-channel, 12-, 14-, and
16-bit digital-to-analog converters (DACs), respectively. These devices include a 2.5V, 2ppm/°C internal reference (disabled by default), giving a full- scale output voltage range of 2.5V or 5V. The internal reference has an initial accuracy of 0.004% and can source up to 20mA at the VREFIN/VREFOUT pin. These devices are monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitch). They use a versatile 3-wire serial interface that operates at clock rates up to 50MHz. The interface is compatible with standard SPITM, QSPITM, MicrowireTM, and digital signal
The DAC7568, DAC8168, and DAC8568 incorporate a power-on-reset circuit that ensures the DAC output powers up at either zero scale or midscale until a valid code is written to the device. These devices contain a power-down feature, accessed over the serial interface, that reduces current consumption to typically 0.18μA at 5V. Power consumption (including internal reference) is typically 2.9mW at 3V, reducing to less than 1μW in power-down mode. The low power consumption, internal reference, and small footprint make these devices ideal for portable, battery-operated equipment.
The DAC7568, DAC8168, and DAC8568 are drop-in and function-compatible with each other, and are available in TSSOP-16 and TSSOP-14 packages.
Device Information
|
PART NUMBER |
PACKAGE |
BODY SIZE (NOM) |
|
DAC7568 |
TSSOP (14) |
5.00 mm x 4.40 mm |
|
TSSOP (16) |
5.00 mm x 4.40 mm |
|
|
DAC8168 |
TSSOP (14) |
5.00 mm x 4.40 mm |
|
TSSOP (16) |
5.00 mm x 4.40 mm |
|
|
DAC8568 |
TSSOP (16) |
5.00 mm x 4.40 mm |
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