AD5760 Datasheet, PDF (1/32 Pages) Analog Devices – Ultra Stable, 16-Bit ±0.5 LSB INL

Data Sheet
Ultra Stable, 16-Bit ±0.5 LSB INL,
Voltage Output DAC
AD5760
FEATURES
True 16-bit voltage output DAC, ±0.5 LSB INL
8 nV/√Hz output noise spectral density
0.00625 LSB long-term linearity error stability
±0.018 ppm/°C gain error temperature coefficient
2.5 μs output voltage settling time
3.5 nV-sec midscale glitch impulse
Integrated precision reference buffers
Operating temperature range: −40°C to +125°C
4 mm × 5 mm LFCSP package
Wide power supply range of up to ±16.5 V
35 MHz Schmitt triggered digital interface
1.8 V-compatible digital interface
APPLICATIONS
Medical instrumentation
Test and measurement
Industrial control
Scientific and aerospace instrumentation
Data acquisition systems
Digital gain and offset adjustment
Power supply control
GENERAL DESCRIPTION
The AD5760¹ is a true 16-bit, unbuffered voltage output DAC
that operates from a bipolar supply of up to 33 V. The AD5760
accepts a positive reference input range of 5 V to VDD − 2.5 V
and a negative reference input range of VSS + 2.5 V to 0 V. The
AD5760 offers a relative accuracy specification of ±0.5 LSB
maximum range, and operation is guaranteed monotonic with a
±0.5 LSB DNL maximum range specification.
The part uses a versatile 3-wire serial interface that operates at
clock rates of up to 35 MHz and is compatible with standard
SPI, QSPI™, MICROWIRE™, and DSP interface standards. The
part incorporates a power-on reset circuit that ensures that the
DAC output powers up to 0 V in a known output impedance
state and remains in this state until a valid write to the device
takes place. The part provides an output clamp feature that
places the output in a defined load state.
FUNCTIONAL BLOCK DIAGRAM
V_CC
V_DD
V_REFP
IOV_CC
SDIN
SCLK
SYNC
SDO
LDAC
CLR
RESET
INPUT
SHIFT
16
REGISTER
AND
CONTROL
LOGIC
DAC ¹⁶
REG
16-BIT
DAC
POWER-ON RESET
AND CLEAR LOGIC
DGND
V_SS AGND
V_REFN
Figure 1.
6.8kΩ 6.8kΩ
A1
R_FB
R1 R_FB
INV
V_OUT
6kΩ
AD5760
Table 1. Related Devices
Part No.
AD5790
AD5791
AD5780
AD5781
AD5541A/AD5542A
Description
20-bit, 2 LSB accurate DAC
20-bit, 1 LSB accurate DAC
18-bit, 1 LSB accurate DAC
18-bit, 0.5 LSB INL
16-bit, 1 LSB accurate 5 V DAC
PRODUCT HIGHLIGHTS
1. True 16-bit accuracy.
2. Wide power supply range of up to ±16.5 V.
3. −40°C to +125°C operating temperature range.
4. Low 8 nV/√Hz noise.
5. Low ±0.018 ppm/°C gain error temperature coefficient.
COMPANION PRODUCTS
Output Amplifier Buffer: AD8675, ADA4898-1, ADA4004-1
External Reference: ADR445
DC-to-DC Design Tool: ADIsimPower™
Additional companion products on the AD5780 product page
1 _{Protected by U.S. Patent No. 7,884,747. Other patents pending.}
Rev. B
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