MCP4901T-E/MC Microchip Technology, MCP4901T-E/MC Datasheet

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MCP4901T-E/MC

Manufacturer Part Number
MCP4901T-E/MC
Description
Single 12-bit DAC With SPI Interace 8 DFN 2x3mm T/R
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP4901T-E/MC

Settling Time
4.5µs
Number Of Bits
8
Data Interface
Serial, SPI™
Number Of Converters
1
Voltage Supply Source
Single Supply
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-DFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power Dissipation (max)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP4901T-E/MC
Manufacturer:
MICROCHIP
Quantity:
12 000
Features
• MCP4901: 8-Bit Voltage Output DAC
• MCP4911: 10-Bit Voltage Output DAC
• MCP4921: 12-Bit Voltage Output DAC
• Rail-to-Rail Output
• SPI Interface with 20 MHz Clock Support
• Simultaneous Latching of the DAC Output
• Fast Settling Time of 4.5 µs
• Selectable Unity or 2x Gain Output
• External Voltage Reference Input
• External Multiplier Mode
• 2.7V to 5.5V Single-Supply Operation
• Extended Temperature Range: -40°C to +125°C
Applications
• Set Point or Offset Trimming
• Precision Selectable Voltage Reference
• Motor Control Feedback Loop
• Digitally-Controlled Multiplier/Divider
• Calibration of Optical Communication Devices
Related Products
 2010 Microchip Technology Inc.
MCP4801
MCP4811
MCP4821
MCP4802
MCP4812
MCP4822
MCP4901
MCP4911
MCP4921
MCP4902
MCP4912
MCP4922
Note: The products listed here have similar AC/DC
performances.
with LDAC Pin
P/N
8/10/12-Bit Voltage Output Digital-to-Analog Converter
Resolution
DAC
10
12
10
12
10
12
10
12
8
8
8
8
Channels
No. of
1
1
1
2
2
2
1
1
1
2
2
2
MCP4901/4911/4921
with SPI Interface
Reference
(2.048V)
External
Voltage
Internal
(V
REF
)
Description
The MCP4901/4911/4921 devices are single channel
8-bit, 10-bit and 12-bit buffered voltage output
Digital-to-Analog Converters (DACs), respectively. The
devices operate from a single 2.7V to 5.5V supply with
an SPI compatible Serial Peripheral Interface. The user
can configure the full-scale range of the device to be
V
(gain of 1 of 2).
The user can shut down the device by setting the Con-
figuration Register bit. In Shutdown mode, most of the
internal circuits are turned off for power savings, and
the output amplifier is configured to present a known
high resistance output load (500 ktypical.
The
allowing synchronous updates of the DAC output using
the LDAC pin. These devices also incorporate a
Power-on Reset (POR) circuit to ensure reliable power-
up.
The devices utilize a resistive string architecture, with
its inherent advantages of low Differential Non-Linear-
ity (DNL) error and fast settling time. These devices are
specified over the extended temperature range
(+125°C).
The devices provide high accuracy and low noise
performance for consumer and industrial applications
where calibration or compensation of signals (such as
temperature, pressure and humidity) are required.
The MCP4901/4911/4921 devices are available in the
PDIP, SOIC, MSOP and DFN packages.
Package Types
REF
8-Pin PDIP, SOIC, MSOP
SCK
V
SDI
CS
DD
* Includes Exposed Thermal Pad (EP); see
or 2*V
devices
1
2
3
4
REF
MCP4901: 8-bit single DAC
MCP4911: 10-bit single DAC
MCP4921: 12-bit single DAC
by setting the gain selection option bit
include
8
7
6
5
V
V
V
LDAC
OUT
SS
REF
double-buffered
SCK
V
SDI
CS
DD
DFN-8 (2x3)
4
1
2
3
DS22248A-page 1
EP
9
Table
8
6
5
registers,
7
*
V
V
V
LDAC
OUT
SS
REF
3-1.

Related parts for MCP4901T-E/MC

MCP4901T-E/MC Summary of contents

Page 1

... MCP4922 12 2 Note: The products listed here have similar AC/DC performances.  2010 Microchip Technology Inc. with SPI Interface Description The MCP4901/4911/4921 devices are single channel 8-bit, 10-bit and 12-bit buffered voltage output Digital-to-Analog Converters (DACs), respectively. The devices operate from a single 2.7V to 5.5V supply with an SPI compatible Serial Peripheral Interface ...

Page 2

... MCP4901/4911/4921 Block Diagram LDAC V REF Buffer DS22248A-page 2 CS SDI SCK Interface Logic Power-on Reset Input Register DAC Register String DAC Gain Output Logic Op Amp Output Logic V OUT  2010 Microchip Technology Inc. ...

Page 3

... Note 1: Guaranteed monotonic by design over all codes. 2: This parameter is ensured by design, and not 100% tested.  2010 Microchip Technology Inc. MCP4901/4911/4921 † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...

Page 4

... Vp-p, REF Unbuffered 2.5V ±0.2Vp-p, REF Frequency = 1 kHz Accuracy is better than 1 LSb for – 40 mV) OUT DD Within 1/2 LSB of final value from 1/4 to 3/4 full-scale range 1 LSB change around major carry (0111...1111 to 1000...0000)  2010 Microchip Technology Inc. ...

Page 5

... Input Capacitance – C VREF Unbuffered Mode Multiplying Mode f VREF -3 dB Bandwidth f VREF Note 1: Guaranteed monotonic by design over all codes. 2: This parameter is ensured by design, and not 100% tested.  2010 Microchip Technology Inc. MCP4901/4911/4921 = 5V 0V REF Min Typ Max Units 2.7 — 5.5 — ...

Page 6

... Output Buffer Gain Conditions V = 2.5V ±0.1Vp-p, REF Frequency = 1 kHz Accuracy is better than 1 LSb for – 40 mV) OUT DD Within 1/2 LSB of final value from 1/4 to 3/4 full-scale range 1 LSB change around major carry (0111...1111 to 1000...0000)  2010 Microchip Technology Inc. ...

Page 7

... IDLE Note 1: This parameter is ensured by design and not 100% tested CSSR Mode 1,1 SCK Mode 0 MSB in LDAC FIGURE 1-1: SPI Input Timing Data.  2010 Microchip Technology Inc. MCP4901/4911/4921 = 2.7V – 5.5V Min Typ Max Units 0.7 V — — — — 0 — ...

Page 8

... A T -40 — +125 ° -65 — +150 °C A  — 68 — °C/W JA  — 90 — °C/W JA  — 150 — °C/W JA  — 211 — °C exceed the maximum junction temperature GND. SS Conditions Note 1  2010 Microchip Technology Inc. ...

Page 9

... Temperature (MCP4921). 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 0 1024 2048 3072 Code (Decimal) 1 FIGURE 2-3: DNL vs. Code and V Gain=1 (MCP4921).  2010 Microchip Technology Inc. MCP4901/4911/4921 = 5V 0V 2.048V, Gain = 2x REF 0.0766 0.0764 0.0762 0.076 0.0758 0.0756 0.0754 0.0752 0.075 -40 4096 FIGURE 2-4: Temperature (MCP4921) ...

Page 10

... Code (Decimal) INL vs. Code (MCP4921). (Figure 2-10) for o o Temp = - +125 C 256 384 512 640 768 896 1024 Code DNL vs. Code and 125 C 256 384 512 640 768 896 1024 Code INL vs. Code and  2010 Microchip Technology Inc. ...

Page 11

... Code FIGURE 2-14: INL vs. Code and Temperature (MCP4901). 210 190 170 150 130 110 -40 - Ambient Temperature (°C) FIGURE 2-15: I vs. Temperature and  2010 Microchip Technology Inc. MCP4901/4911/4921 = 5V 0V 2.048V, Gain = REF FIGURE 2-16: 2.7V 151 156 161 166 171 176 181 186 191 196 201 ...

Page 12

... FIGURE 2-22: Temperature and 5.5V 5.0V 4.0V 3.0V 2.7V 100 120 = 5 k 100 pF 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) V High Threshold vs 5.5V 5.0V 4.0V 3.0V 2. 100 120 Ambient Temperature (ºC) V Low Threshold vs  2010 Microchip Technology Inc. ...

Page 13

... Ambient Temperature (ºC) FIGURE 2-25: V High Limit vs. OUT Temperature and  2010 Microchip Technology Inc. MCP4901/4911/4921 = 5V 0V 2.048V, Gain = REF 0.0045 V DD 5.5V 0.004 5.0V 0.0035 4.0V 0.003 3.0V 0.0025 2.7V 0.002 ...

Page 14

... Rise Time OUT DS22248A-page 2.048V, Gain = REF V OUT LDAC Time (1 µs/div) FIGURE 2-32 OUT SCK LDAC Time (1 µs/div) FIGURE 2-33: V Shutdown. Frequency (Hz) FIGURE 2-34: PSRR vs. Frequency k 100 pF Rise Time OUT Rise Time Exit OUT  2010 Microchip Technology Inc. ...

Page 15

... OUT REF 600 580 560 540 520 500 480 460 440 420 400 Worst Case Codes (decimal) FIGURE 2-36 Bandwidth vs. Worst Codes.  2010 Microchip Technology Inc. MCP4901/4911/4921 = 5V 0V 2.50V, Gain = REF 160 D = 416 D = 672 - 928 D = 1184 D = 1440 D = 1696 -90 ...

Page 16

... MCP4901/4911/4921 NOTES: DS22248A-page 16  2010 Microchip Technology Inc. ...

Page 17

... Serial Clock Input (SCK) SCK is the SPI compatible serial clock input. 3.4 Serial Data Input (SDI) SDI is the SPI compatible serial data input.  2010 Microchip Technology Inc. MCP4901/4911/4921 Table 3-1. Symbol V Supply Voltage Input (2.7V to 5.5V) ...

Page 18

... MCP4901/4911/4921 NOTES: DS22248A-page 18  2010 Microchip Technology Inc. ...

Page 19

... See the output swing voltage specification in Section 1.0 “Electrical Characteris- tics”. 1 LSb is the ideal voltage difference between two successive codes. Table 4-1 illustrates the LSb calculation of each device.  2010 Microchip Technology Inc. MCP4901/4911/4921 TABLE 4-1: Device Selection REF MCP4901 ( ...

Page 20

... V provide additional transient immunity OUT Transients 0 1 FIGURE 4-3: Typical Transient Response. input to REF ), DD ) during device operation. DD pin, can DD V POR POR Transient Duration Time Transients above the below the – V (V) DD POR  2010 Microchip Technology Inc. ...

Page 21

... When the device is changed from Shutdown to Active mode, the output settling time takes less than 10 µs, but more than the standard active mode settling time (4.5 µs).  2010 Microchip Technology Inc. MCP4901/4911/4921 OP Amp Power-Down ...

Page 22

... MCP4901/4911/4921 NOTES: DS22248A-page 22  2010 Microchip Technology Inc. ...

Page 23

... Refer to Figure 1-1 and the SPI Timing Specifications Table for detailed input and output timing specifications for both Mode 0,0 and Mode 1,1 operation.  2010 Microchip Technology Inc. MCP4901/4911/4921 5.2 Write Command The write command is initiated by driving the CS pin low, followed by clocking the four Configuration bits and the 12 data bits into the SDI pin on the rising edge of SCK ...

Page 24

... D1 is available.  OUT pin is connected to 500 ktypical) OUT U = Unimplemented bit, read as ‘0’ bit is cleared W-x W-x W-x W-x W bit 0 W-x W-x W-x W-x W bit 0 W-x W-x W-x W-x W bit bit is unknown  2010 Microchip Technology Inc. ...

Page 25

... Write Command for MCP4911 (10-bit DAC). Note: X are don’t care bits SCK config bits SDI 0 BUF GA SHDN D7 LDAC V OUT FIGURE 5-3: Write Command for MCP4901(8-bit DAC). Note: X are don’t care bits.  2010 Microchip Technology Inc. MCP4901/4911/4921 data bits ...

Page 26

... MCP4901/4911/4921 NOTES: DS22248A-page 26  2010 Microchip Technology Inc. ...

Page 27

... These capacitors should be placed as close to the device power pin ( possible (within 4 mm). DD The power source supplying these devices should be as clean as possible. If the application circuit has separate digital and analog power supplies should reside on the analog plane. SS  2010 Microchip Technology Inc. MCP4901/4911/4921 µ 0.1 µ ...

Page 28

... V is available with REF output voltage range. However, , the noise REF needs to be very low or REF is used while two resistors REF illustrates this concept. Note that the Comparator V TRIP V – CC  2010 Microchip Technology Inc. ...

Page 29

... R 2 EXAMPLE 6-2: SINGLE-SUPPLY “WINDOW” DAC.  2010 Microchip Technology Inc. MCP4901/4911/4921 If the threshold is not near V a “window” around the threshold has several advantages. One simple method to create this “window” use a voltage divider network with a pull-up and pull-down resistor. ...

Page 30

... R allow the gain to be selected shift the DAC's output to a selected 4 instead of V REF SS REF , if a higher offset is 4 REF – CC 0.1 µF and R by setting the DAC 2.05V 0. REF = = ----------------------------------------- -- -  REF = 10 k 3  2010 Microchip Technology Inc. ...

Page 31

... EXAMPLE 6-4: BIPOLAR VOLTAGE SOURCE WITH SELECTABLE GAIN AND OFFSET.  2010 Microchip Technology Inc. MCP4901/4911/4921 This circuit is typically used in Multiplier mode and is ideal for linearizing a sensor whose slope and offset varies. Refer to Section 6.9 “Using Multiplier Mode” for more information on Multiplier mode. ...

Page 32

... The resulting transfer function is not perfectly linear, as shown in the equation – CC 0.1 µ Gain selection ( Digital value of DAC (0-4096 Since ‘s V has a resolution of B OUTB by 1000 OUTA needs to be 100 k. 1 Example 6-  2010 Microchip Technology Inc. ...

Page 33

... V OUT = V G ------ REF N 2 EXAMPLE 6-6: DIGITALLY-CONTROLLED CURRENT SOURCE.  2010 Microchip Technology Inc. MCP4901/4911/4921 When working with very small sensor voltages, plan on eliminating the amplifier’s offset error by storing the DAC's setting under known sensor conditions. would sense REF ...

Page 34

... Adding an op amp to buffer the output, as illustrated in Examples 6-2 through 6-6, extends the output range and power to meet the precise needs of the application. V RPM_SET V RPM OUT DAC V REF SPI 3 D   OUT = V G ------ REF N 2 INPUT. REF – V – sense  2010 Microchip Technology Inc. ...

Page 35

... DEVELOPMENT SUPPORT 7.1 Evaluation & Demonstration Boards The Mixed Signal PICtail™ Board supports the MCP4901/4911/4921 family of devices. Please refer to www.microchip.com for further information on this product’s capabilities and availability.  2010 Microchip Technology Inc. MCP4901/4911/4921 DS22248A-page 35 ...

Page 36

... MCP4901/4911/4921 NOTES: DS22248A-page 36  2010 Microchip Technology Inc. ...

Page 37

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information.  2010 Microchip Technology Inc. MCP4901/4911/4921 Example: AHS 010 ...

Page 38

... MCP4901/4911/4921 /HDG 3ODVWLF 'XDO )ODW 1R /HDG 3DFNDJH 0& ± 1RWH D N NOTE TOP VIEW A3 1RWHV DS22248A-page 38 PP %RG\ >') EXPOSED PAD BOTTOM VIEW A NOTE NOTE  2010 Microchip Technology Inc. ...

Page 39

... Microchip Technology Inc. MCP4901/4911/4921 PP %RG\ >')1@ DS22248A-page 39 ...

Page 40

... MCP4901/4911/4921 /HDG 3ODVWLF 0LFUR 6PDOO 2XWOLQH 3DFNDJH 06 >0623@ 1RWH D N NOTE 1RWHV DS22248A-page φ L  2010 Microchip Technology Inc. ...

Page 41

... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP4901/4911/4921 DS22248A-page 41 ...

Page 42

... MCP4901/4911/4921 /HDG 3ODVWLF 6PDOO 2XWOLQH 61 ± 1DUURZ 1RWH N NOTE 1RWHV DS22248A-page 42 PP %RG\ >62,& φ α c β  2010 Microchip Technology Inc. ...

Page 43

... Microchip Technology Inc. MCP4901/4911/4921 PP %RG\ >62,&@ DS22248A-page 43 ...

Page 44

... MCP4901/4911/4921 /HDG 3ODVWLF 'XDO ,Q /LQH 3 ± 1RWH N NOTE 1RWHV DS22248A-page 44 PLO %RG\ >3',  2010 Microchip Technology Inc. ...

Page 45

... APPENDIX A: REVISION HISTORY Revision A (April 2010) • Original Release of this Document.  2010 Microchip Technology Inc. MCP4901/4911/4921 DS22248A-page 45 ...

Page 46

... MCP4901/4911/4921 NOTES: DS22248A-page 46  2010 Microchip Technology Inc. ...

Page 47

... Microchip Technology Inc. MCP4901/4911/4921 Examples: a) MCP4901-E/P: b) MCP4901-E/SN: Extended temperature, c) MCP4901T-E/SN: Extended temperature, d) MCP4901-E/MS: Extended temperature, e) MCP4901T-E/MS: Extended temperature, f) MCP4901-E/MC: Extended temperature, (Extended) g) MCP4901T-E/MC:Extended temperature, h) MCP4911-E/P: i) MCP4911-E/SN: j) MCP4911T-E/SN: k) MCP4911-E/MS: Extended temperature, l) MCP4911T-E/MS: Extended temperature, m) MCP4911-E/MC: Extended temperature, n) MCP4911T-E/MC: Extended temperature, o) MCP4921-E/P: ...

Page 48

... MCP4901/4911/4921 NOTES: DS22248A-page 48  2010 Microchip Technology Inc. ...

Page 49

... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 50

... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350  2010 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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