Features: `Dual channel
`16-bit resolution: AD5547
`14-bit resolution: AD5557
`2- or 4-quadrant, 4 MHz BW multiplying DAC
`±1 LSB DNL
`±1 LSB INL for AD5557, ±2 LSB INL for AD5547
`Operating supply voltage: 2.7 V to 5.5 V
`Low noise: 12 nV/Hz
`Low power: IDD = 10 A max
`0.5 s settling time
`Built-in RFB facilitates current-to-voltage conversion
`Built-in 4-quadrant resistors allow 0 V to 10 V, 0 V to +10 V, or ±10 V outputs
`2 mA full-scale current ± 20%, with VREF = 10 V
`Extended automotive operating temperature range: 40°C to +125°C
`Selectable zero-scale/midscale power-on presets
`Compact TSSOP-38 packageApplication·Automatic test equipment
·Instrumentation
·Digitally controlled calibration
·Digital waveform generationPinout
Specifications
| Resolution (Bits) |
16bit |
| DAC Update Rate |
2MSPS |
| DAC Settling Time |
500ns |
| # DAC Outputs |
2 |
| DAC Type |
Current Out |
| DAC Input Format |
Par |
| Output FSR |
(-Vref),(Bip 2Vref),(Bip Vref),(Uni 2Vref),(Uni Vref),User Def. Range/Offset |
| Ref Int/Ext |
Ext |
| Supply Vnom |
Single(+5) |
| Package |
SOP |
VDD to GND ......................................................0.3 V, +8 V
RFB, ROFS, R1, RCOM, and VREF to GND..............18 V, 18 V
Logic Inputs to GND.........................................0.3 V, +8 V
V(IOUT) to GND......................................0.3 V, VDD + 0.3 V
Input Current to Any Pin except Supplies................±50 mA
Thermal Resistance (JA)1
Maximum Junction Temperature (TJ MAX)..................150°C
Operating Temperature Range..............40°C to +125°C
Storage Temperature Range..................65°C to +150°C
Lead Temperature
Vapor Phase, 60 s .....................................................215°C
Infrared, 15 s ............................................................220°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
1 Package power dissipation = (TJ MAX TA)/JA.
DescriptionThe AD5547/AD5557 are dual precision, 16-/14-bit, multiplying, low power, current-output, parallel input, digital-to-analog converters. They are designed to operate from single +5 V supply with ±10 V multiplying references for 4-quadrant outputs with up to 4 MHz bandwidth.
The built-in 4-quadrant resistors facilitate resistance matching and temperature tracking, which minimize the numbers of components needed for multiquadrant applications. In addition, the feedback resistor (RFB) simplifies the I-V conversion with an external buffer.
The AD5547/AD5557 are available in a compact TSSOP-38 package and operate at the extended automotive temperature range of 40°C to +125°C.
AD5547 Data Sheet
